/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "configureapp.h"
#include "environment.h"
#include "tools.h"

#include <qdir.h>
#include <qdiriterator.h>
#include <qtemporaryfile.h>
#include <qstandardpaths.h>
#include <qstack.h>
#include <qdebug.h>
#include <qfileinfo.h>
#include <qtextstream.h>
#include <qregexp.h>
#include <qhash.h>

#include <iostream>
#include <string>
#include <fstream>
#include <windows.h>
#include <conio.h>

QT_BEGIN_NAMESPACE

enum Platforms {
    WINDOWS,
    WINDOWS_RT,
    QNX,
    ANDROID,
    OTHER
};

std::ostream &operator<<(std::ostream &s, const QString &val) {
    s << val.toLocal8Bit().data();
    return s;
}


using namespace std;

// Macros to simplify options marking
#define MARK_OPTION(x,y) ( dictionary[ #x ] == #y ? "*" : " " )

static inline void promptKeyPress()
{
    cout << "(Press any key to continue...)";
    if (_getch() == 3) // _Any_ keypress w/no echo(eat <Enter> for stdout)
        exit(0);      // Exit cleanly for Ctrl+C
}

Configure::Configure(int& argc, char** argv) : verbose(0)
{
    // Default values for indentation
    optionIndent = 4;
    descIndent   = 25;
    outputWidth  = 0;
    // Get console buffer output width
    CONSOLE_SCREEN_BUFFER_INFO info;
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleScreenBufferInfo(hStdout, &info))
        outputWidth = info.dwSize.X - 1;
    outputWidth = qMin(outputWidth, 79); // Anything wider gets unreadable
    if (outputWidth < 35) // Insanely small, just use 79
        outputWidth = 79;
    int i;

    /*
    ** Set up the initial state, the default
    */
    dictionary[ "CONFIGCMD" ] = argv[ 0 ];

    for (i = 1; i < argc; i++)
        configCmdLine += argv[ i ];

    if (configCmdLine.size() >= 2 && configCmdLine.at(0) == "-srcdir") {
        sourcePath = QDir::cleanPath(configCmdLine.at(1));
        sourceDir = QDir(sourcePath);
        configCmdLine.erase(configCmdLine.begin(), configCmdLine.begin() + 2);
    } else {
        // Get the path to the executable
        wchar_t module_name[MAX_PATH];
        GetModuleFileName(0, module_name, sizeof(module_name) / sizeof(wchar_t));
        QFileInfo sourcePathInfo = QString::fromWCharArray(module_name);
        sourcePath = sourcePathInfo.absolutePath();
        sourceDir = sourcePathInfo.dir();
    }
    buildPath = QDir::currentPath();
#if 0
    const QString installPath = QString("C:\\Qt\\%1").arg(QT_VERSION_STR);
#else
    const QString installPath = buildPath;
#endif
    if (sourceDir != buildDir) { //shadow builds!
        QDir(buildPath).mkpath("bin");

        buildDir.mkpath("mkspecs");
    }

    defaultBuildParts << QStringLiteral("libs") << QStringLiteral("tools") << QStringLiteral("examples");
    allBuildParts = defaultBuildParts;
    allBuildParts << QStringLiteral("tests");
    dictionary[ "QT_INSTALL_PREFIX" ] = installPath;

    dictionary[ "QMAKESPEC" ] = getenv("QMAKESPEC");
    if (dictionary[ "QMAKESPEC" ].size() == 0) {
        dictionary[ "QMAKESPEC" ] = Environment::detectQMakeSpec();
        dictionary[ "QMAKESPEC_FROM" ] = "detected";
    } else {
        dictionary[ "QMAKESPEC_FROM" ] = "env";
    }

    dictionary[ "QCONFIG" ]         = "full";
    dictionary[ "EMBEDDED" ]        = "no";
    dictionary[ "BUILD_QMAKE" ]     = "yes";
    dictionary[ "QMAKE_INTERNAL" ]  = "no";
    dictionary[ "WIDGETS" ]         = "yes";
    dictionary[ "GUI" ]             = "yes";
    dictionary[ "RTTI" ]            = "yes";
    dictionary[ "STRIP" ]           = "yes";
    dictionary[ "SEPARATE_DEBUG_INFO" ] = "no";
    dictionary[ "SSE2" ]            = "auto";
    dictionary[ "SSE3" ]            = "auto";
    dictionary[ "SSSE3" ]           = "auto";
    dictionary[ "SSE4_1" ]          = "auto";
    dictionary[ "SSE4_2" ]          = "auto";
    dictionary[ "AVX" ]             = "auto";
    dictionary[ "AVX2" ]            = "auto";
    dictionary[ "AVX512" ]          = "auto";
    dictionary[ "SYNCQT" ]          = "auto";
    dictionary[ "AUDIO_BACKEND" ]   = "auto";
    dictionary[ "WMF_BACKEND" ]     = "no";
    dictionary[ "WMSDK" ]           = "auto";
    dictionary[ "QML_DEBUG" ]       = "yes";
    dictionary[ "PLUGIN_MANIFESTS" ] = "no";
    dictionary[ "DIRECTWRITE" ]     = "auto";
    dictionary[ "DIRECT2D" ]        = "no";
    dictionary[ "NIS" ]             = "no";
    dictionary[ "NEON" ]            = "auto";
    dictionary[ "LARGE_FILE" ]      = "yes";
    dictionary[ "FONT_CONFIG" ]     = "no";
    dictionary[ "POSIX_IPC" ]       = "no";
    dictionary[ "QT_GLIB" ]         = "no";
    dictionary[ "QT_ICONV" ]        = "auto";
    dictionary[ "QT_EVDEV" ]        = "auto";
    dictionary[ "QT_MTDEV" ]        = "auto";
    dictionary[ "QT_TSLIB" ]        = "auto";
    dictionary[ "QT_INOTIFY" ]      = "auto";
    dictionary[ "QT_EVENTFD" ]      = "auto";
    dictionary[ "QT_CUPS" ]         = "auto";
    dictionary[ "CFG_GCC_SYSROOT" ] = "yes";
    dictionary[ "SLOG2" ]           = "no";
    dictionary[ "QNX_IMF" ]         = "no";
    dictionary[ "PPS" ]             = "no";
    dictionary[ "LGMON" ]           = "no";
    dictionary[ "SYSTEM_PROXIES" ]  = "no";
    dictionary[ "WERROR" ]          = "auto";
    dictionary[ "QREAL" ]           = "double";
    dictionary[ "ATOMIC64" ]        = "auto";

    //Only used when cross compiling.
    dictionary[ "QT_INSTALL_SETTINGS" ] = "/etc/xdg";

    QString version;
    QFile qmake_conf(sourcePath + "/.qmake.conf");
    if (qmake_conf.open(QFile::ReadOnly)) {
        while (!qmake_conf.atEnd()) {
            static const char beginning[] = "MODULE_VERSION = ";
            QByteArray line = qmake_conf.readLine();
            if (!line.startsWith(beginning))
                continue;

            version = qMove(line).mid(int(strlen(beginning))).trimmed();
            break;
        }
        qmake_conf.close();
    }

    if (version.isEmpty())
        version = QString("%1.%2.%3").arg(QT_VERSION>>16).arg(((QT_VERSION>>8)&0xff)).arg(QT_VERSION&0xff);

    dictionary[ "VERSION" ]         = version;
    {
        QRegExp version_re("([0-9]*)\\.([0-9]*)\\.([0-9]*)(|-.*)");
        if (version_re.exactMatch(version)) {
            dictionary[ "VERSION_MAJOR" ] = version_re.cap(1);
            dictionary[ "VERSION_MINOR" ] = version_re.cap(2);
            dictionary[ "VERSION_PATCH" ] = version_re.cap(3);
        }
    }

    dictionary[ "REDO" ]            = "no";

    dictionary[ "BUILD" ]           = "debug";
    dictionary[ "BUILDALL" ]        = "auto"; // Means yes, but not explicitly
    dictionary[ "FORCEDEBUGINFO" ]  = "no";
    dictionary[ "OPTIMIZED_TOOLS" ] = "no";

    dictionary[ "BUILDTYPE" ]      = "none";

    dictionary[ "BUILDDEV" ]        = "no";

    dictionary[ "COMPILE_EXAMPLES" ] = "yes";

    dictionary[ "C++STD" ]          = "auto";

    dictionary[ "USE_GOLD_LINKER" ] = "no";

    dictionary[ "ENABLE_NEW_DTAGS" ] = "no";

    dictionary[ "SHARED" ]          = "yes";

    dictionary[ "STATIC_RUNTIME" ]  = "no";

    dictionary[ "ZLIB" ]            = "auto";

    dictionary[ "PCRE" ]            = "auto";

    dictionary[ "ICU" ]             = "no";

    dictionary[ "ANGLE" ]           = "auto";
    dictionary[ "DYNAMICGL" ]       = "auto";

    dictionary[ "GIF" ]             = "auto";
    dictionary[ "JPEG" ]            = "auto";
    dictionary[ "PNG" ]             = "auto";
    dictionary[ "LIBJPEG" ]         = "auto";
    dictionary[ "LIBPNG" ]          = "auto";
    dictionary[ "DOUBLECONVERSION" ] = "auto";
    dictionary[ "FREETYPE" ]        = "yes";
    dictionary[ "HARFBUZZ" ]        = "qt";

    dictionary[ "ACCESSIBILITY" ]   = "yes";
    dictionary[ "OPENGL" ]          = "yes";
    dictionary[ "OPENGL_ES_2" ]     = "yes";
    dictionary[ "OPENVG" ]          = "no";
    dictionary[ "SSL" ]             = "auto";
    dictionary[ "OPENSSL" ]         = "auto";
    dictionary[ "LIBPROXY" ]        = "auto";
    dictionary[ "DBUS" ]            = "auto";

    dictionary[ "STYLE_WINDOWS" ]   = "yes";
    dictionary[ "STYLE_WINDOWSXP" ] = "auto";
    dictionary[ "STYLE_WINDOWSVISTA" ] = "auto";
    dictionary[ "STYLE_FUSION" ]    = "yes";

    dictionary[ "SQL_MYSQL" ]       = "no";
    dictionary[ "SQL_ODBC" ]        = "no";
    dictionary[ "SQL_OCI" ]         = "no";
    dictionary[ "SQL_PSQL" ]        = "no";
    dictionary[ "SQL_TDS" ]         = "no";
    dictionary[ "SQL_DB2" ]         = "no";
    dictionary[ "SQL_SQLITE" ]      = "auto";
    dictionary[ "SQL_SQLITE_LIB" ]  = "qt";
    dictionary[ "SQL_SQLITE2" ]     = "no";
    dictionary[ "SQL_IBASE" ]       = "no";

    QString tmp = dictionary[ "QMAKESPEC" ];
    if (tmp.contains("\\")) {
        tmp = tmp.mid(tmp.lastIndexOf("\\") + 1);
    } else {
        tmp = tmp.mid(tmp.lastIndexOf("/") + 1);
    }
    dictionary[ "QMAKESPEC" ] = tmp;

    dictionary[ "INCREDIBUILD_XGE" ] = "auto";
    dictionary[ "LTCG" ]            = "no";
    dictionary[ "NATIVE_GESTURES" ] = "yes";
    dictionary[ "MSVC_MP" ] = "no";

    if (dictionary["QMAKESPEC"].startsWith("win32-g++")) {
        const QString zero = QStringLiteral("0");
        const QStringList parts = Environment::gccVersion().split(QLatin1Char('.'));
        dictionary["QT_GCC_MAJOR_VERSION"] = parts.value(0, zero);
        dictionary["QT_GCC_MINOR_VERSION"] = parts.value(1, zero);
        dictionary["QT_GCC_PATCH_VERSION"] = parts.value(2, zero);
    }
}

Configure::~Configure()
{
}

QString Configure::formatPath(const QString &path)
{
    QString ret = QDir::cleanPath(path);
    // This amount of quoting is deemed sufficient.
    if (ret.contains(QLatin1Char(' '))) {
        ret.prepend(QLatin1Char('"'));
        ret.append(QLatin1Char('"'));
    }
    return ret;
}

QString Configure::formatPaths(const QStringList &paths)
{
    QString ret;
    foreach (const QString &path, paths) {
        if (!ret.isEmpty())
            ret += QLatin1Char(' ');
        ret += formatPath(path);
    }
    return ret;
}

// We could use QDir::homePath() + "/.qt-license", but
// that will only look in the first of $HOME,$USERPROFILE
// or $HOMEDRIVE$HOMEPATH. So, here we try'em all to be
// more forgiving for the end user..
QString Configure::firstLicensePath()
{
    QStringList allPaths;
    allPaths << "./.qt-license"
             << QString::fromLocal8Bit(getenv("HOME")) + "/.qt-license"
             << QString::fromLocal8Bit(getenv("USERPROFILE")) + "/.qt-license"
             << QString::fromLocal8Bit(getenv("HOMEDRIVE")) + QString::fromLocal8Bit(getenv("HOMEPATH")) + "/.qt-license";
    for (int i = 0; i< allPaths.count(); ++i)
        if (QFile::exists(allPaths.at(i)))
            return allPaths.at(i);
    return QString();
}

// #### somehow I get a compiler error about vc++ reaching the nesting limit without
// undefining the ansi for scoping.
#ifdef for
#undef for
#endif

void Configure::parseCmdLine()
{
    if (configCmdLine.size() && configCmdLine.at(0) == "-top-level") {
        dictionary[ "TOPLEVEL" ] = "yes";
        configCmdLine.removeAt(0);
    }

    int argCount = configCmdLine.size();
    int i = 0;
    const QStringList imageFormats = QStringList() << "gif" << "png" << "jpeg";

    if (argCount < 1) // skip rest if no arguments
        ;
    else if (configCmdLine.at(i) == "-redo") {
        dictionary[ "REDO" ] = "yes";
        configCmdLine.clear();
        reloadCmdLine();
    }

    else if (configCmdLine.at(i) == "-loadconfig") {
        ++i;
        if (i != argCount) {
            dictionary[ "REDO" ] = "yes";
            dictionary[ "CUSTOMCONFIG" ] = "_" + configCmdLine.at(i);
            configCmdLine.clear();
            reloadCmdLine();
        } else {
            dictionary[ "DONE" ] = "error";
        }
        i = 0;
    }
    argCount = configCmdLine.size();

    bool isDeviceMkspec = false;

    // Look first for XQMAKESPEC
    for (int j = 0 ; j < argCount; ++j)
    {
        if ((configCmdLine.at(j) == "-xplatform") || (configCmdLine.at(j) == "-device")) {
            isDeviceMkspec = (configCmdLine.at(j) == "-device");
            ++j;
            if (j == argCount)
                break;
            dictionary["XQMAKESPEC"] = configCmdLine.at(j);
            applySpecSpecifics();
            break;
        }
    }

    for (; i<configCmdLine.size(); ++i) {
        bool continueElse[] = {false, false};
        if (configCmdLine.at(i) == "-help"
            || configCmdLine.at(i) == "-h"
            || configCmdLine.at(i) == "-?")
            dictionary[ "HELP" ] = "yes";

        else if (configCmdLine.at(i) == "-v" || configCmdLine.at(i) == "-verbose") {
            ++verbose;
        }

        else if (configCmdLine.at(i) == "-qconfig") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QCONFIG" ] = configCmdLine.at(i);
        }
        else if (configCmdLine.at(i) == "-qreal") {
            ++i;
            if (i == argCount)
                break;
            QString s = dictionary[ "QREAL" ] = configCmdLine.at(i);
            if (s == "float") {
                dictionary[ "QREAL_STRING" ] = "\"float\"";
            } else {
                // escape
                s = s.simplified();
                s = '"' + s.toLatin1().toPercentEncoding(QByteArray(), "-._~", '_') + '"';
                dictionary[ "QREAL_STRING" ] = s;
            }
        }

        else if (configCmdLine.at(i) == "-release") {
            dictionary[ "BUILD" ] = "release";
            if (dictionary[ "BUILDALL" ] == "auto")
                dictionary[ "BUILDALL" ] = "no";
        } else if (configCmdLine.at(i) == "-debug") {
            dictionary[ "BUILD" ] = "debug";
            if (dictionary[ "BUILDALL" ] == "auto")
                dictionary[ "BUILDALL" ] = "no";
        } else if (configCmdLine.at(i) == "-debug-and-release")
            dictionary[ "BUILDALL" ] = "yes";
        else if (configCmdLine.at(i) == "-force-debug-info")
            dictionary[ "FORCEDEBUGINFO" ] = "yes";
        else if (configCmdLine.at(i) == "-no-separate-debug-info")
            dictionary[ "SEPARATE_DEBUG_INFO" ] = "no";
        else if (configCmdLine.at(i) == "-separate-debug-info")
            dictionary[ "SEPARATE_DEBUG_INFO" ] = "yes";
        else if (configCmdLine.at(i) == "-optimized-tools")
            dictionary[ "RELEASE_TOOLS" ] = "yes";
        else if (configCmdLine.at(i) == "-no-optimized-tools")
            dictionary[ "RELEASE_TOOLS" ] = "no";

        else if (configCmdLine.at(i) == "-compile-examples") {
            dictionary[ "COMPILE_EXAMPLES" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-compile-examples") {
            dictionary[ "COMPILE_EXAMPLES" ] = "no";
        }

        else if (configCmdLine.at(i) == "-c++std") {
            ++i;
            if (i == argCount)
                break;

            QString level = configCmdLine.at(i);
            if (level == "c++11" || level == "c++14" || level == "c++1z"
                    || level == "auto") {
                dictionary[ "C++STD" ] = level;
            } else if (level == "11" || level == "14" || level == "1z") {
                dictionary[ "C++STD" ] = "c++" + level;
            } else {
                dictionary[ "DONE" ] = "error";
                cout << "ERROR: invalid C++ standard " << level
                     << "; valid options are: c++11 c++14 c++1z auto" << endl;
                return;
            }
        }


        else if (configCmdLine.at(i) == "-use-gold-linker")
            dictionary[ "USE_GOLD_LINKER" ] = "yes";
        else if (configCmdLine.at(i) == "-no-use-gold-linker")
            dictionary[ "USE_GOLD_LINKER" ] = "no";
        else if (configCmdLine.at(i) == "-enable-new-dtags")
            dictionary[ "ENABLE_NEW_DTAGS" ] = "yes";
        else if (configCmdLine.at(i) == "-disable-new-dtags")
            dictionary[ "ENABLE_NEW_DTAGS" ] = "no";
        else if (configCmdLine.at(i) == "-shared")
            dictionary[ "SHARED" ] = "yes";
        else if (configCmdLine.at(i) == "-static")
            dictionary[ "SHARED" ] = "no";
        else if (configCmdLine.at(i) == "-static-runtime")
            dictionary[ "STATIC_RUNTIME" ] = "yes";
        else if (configCmdLine.at(i) == "-developer-build")
            dictionary[ "BUILDDEV" ] = "yes";
        else if (configCmdLine.at(i) == "-opensource") {
            dictionary[ "BUILDTYPE" ] = "opensource";
        }
        else if (configCmdLine.at(i) == "-commercial") {
            dictionary[ "BUILDTYPE" ] = "commercial";
        }
        else if (configCmdLine.at(i) == "-ltcg") {
            dictionary[ "LTCG" ] = "yes";
        }
        else if (configCmdLine.at(i) == "-no-ltcg") {
            dictionary[ "LTCG" ] = "no";
        }
        else if (configCmdLine.at(i) == "-mp") {
            dictionary[ "MSVC_MP" ] = "yes";
        }
        else if (configCmdLine.at(i) == "-no-mp") {
            dictionary[ "MSVC_MP" ] = "no";
        }
        else if (configCmdLine.at(i) == "-force-asserts") {
            dictionary[ "FORCE_ASSERTS" ] = "yes";
        }
        else if (configCmdLine.at(i) == "-target") {
            ++i;
            if (i == argCount)
                break;
            const QString option = configCmdLine.at(i);
            if (option != "xp") {
                cout << "ERROR: invalid argument for -target option" << endl;
                dictionary["DONE"] = "error";
                return;
            }
            dictionary["TARGET_OS"] = option;
        }
        else if (configCmdLine.at(i) == "-platform") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QMAKESPEC" ] = configCmdLine.at(i);
        dictionary[ "QMAKESPEC_FROM" ] = "commandline";
        } else if (configCmdLine.at(i) == "-arch") {
            ++i;
            if (i == argCount)
                break;
            dictionary["OBSOLETE_ARCH_ARG"] = "yes";
        } else if (configCmdLine.at(i) == "-embedded") {
            dictionary[ "EMBEDDED" ] = "yes";
        } else if (configCmdLine.at(i) == "-xplatform"
                || configCmdLine.at(i) == "-device") {
            ++i;
            // do nothing
        } else if (configCmdLine.at(i) == "-device-option") {
            ++i;
            const QString option = configCmdLine.at(i);
            QString &devOpt = dictionary["DEVICE_OPTION"];
            if (!devOpt.isEmpty())
                devOpt.append("\n").append(option);
            else
                devOpt = option;
        }

        else if (configCmdLine.at(i) == "-no-zlib") {
            // No longer supported since Qt 4.4.0
            // But save the information for later so that we can print a warning
            //
            // If you REALLY really need no zlib support, you can still disable
            // it by doing the following:
            //   add "no-zlib" to mkspecs/qconfig.pri
            //   #define QT_NO_COMPRESS (probably by adding to src/corelib/global/qconfig.h)
            //
            // There's no guarantee that Qt will build under those conditions

            dictionary[ "ZLIB_FORCED" ] = "yes";
        } else if (configCmdLine.at(i) == "-qt-zlib") {
            dictionary[ "ZLIB" ] = "qt";
        } else if (configCmdLine.at(i) == "-system-zlib") {
            dictionary[ "ZLIB" ] = "system";
        }

        else if (configCmdLine.at(i) == "-qt-pcre") {
            dictionary[ "PCRE" ] = "qt";
        } else if (configCmdLine.at(i) == "-system-pcre") {
            dictionary[ "PCRE" ] = "system";
        }

        else if (configCmdLine.at(i) == "-icu") {
            dictionary[ "ICU" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-icu") {
            dictionary[ "ICU" ] = "no";
        }

        else if (configCmdLine.at(i) == "-angle") {
            dictionary[ "ANGLE" ] = "yes";
            dictionary[ "ANGLE_FROM" ] = "commandline";
        } else if (configCmdLine.at(i) == "-no-angle") {
            dictionary[ "ANGLE" ] = "no";
            dictionary[ "ANGLE_FROM" ] = "commandline";
        }

        // Image formats --------------------------------------------
        else if (configCmdLine.at(i) == "-no-gif")
            dictionary[ "GIF" ] = "no";

        else if (configCmdLine.at(i) == "-no-libjpeg") {
            dictionary[ "JPEG" ] = "no";
            dictionary[ "LIBJPEG" ] = "no";
        } else if (configCmdLine.at(i) == "-qt-libjpeg") {
            dictionary[ "LIBJPEG" ] = "qt";
        } else if (configCmdLine.at(i) == "-system-libjpeg") {
            dictionary[ "LIBJPEG" ] = "system";
        }

        else if (configCmdLine.at(i) == "-no-libpng") {
            dictionary[ "PNG" ] = "no";
            dictionary[ "LIBPNG" ] = "no";
        } else if (configCmdLine.at(i) == "-qt-libpng") {
            dictionary[ "LIBPNG" ] = "qt";
        } else if (configCmdLine.at(i) == "-system-libpng") {
            dictionary[ "LIBPNG" ] = "system";
        }

        // Double Conversion -----------------------------------------
        else if (configCmdLine.at(i) == "-no-doubleconversion")
            dictionary[ "DOUBLECONVERSION" ] = "no";
        else if (configCmdLine.at(i) == "-qt-doubleconversion")
            dictionary[ "DOUBLECONVERSION" ] = "qt";
        else if (configCmdLine.at(i) == "-system-doubleconversion")
            dictionary[ "DOUBLECONVERSION" ] = "system";

        // Text Rendering --------------------------------------------
        else if (configCmdLine.at(i) == "-no-freetype")
            dictionary[ "FREETYPE" ] = "no";
        else if (configCmdLine.at(i) == "-qt-freetype")
            dictionary[ "FREETYPE" ] = "yes";
        else if (configCmdLine.at(i) == "-system-freetype")
            dictionary[ "FREETYPE" ] = "system";

        else if (configCmdLine.at(i) == "-no-harfbuzz")
            dictionary[ "HARFBUZZ" ] = "no";
        else if (configCmdLine.at(i) == "-qt-harfbuzz")
            dictionary[ "HARFBUZZ" ] = "qt";
        else if (configCmdLine.at(i) == "-system-harfbuzz")
            dictionary[ "HARFBUZZ" ] = "system";

        // Styles ---------------------------------------------------
        else if (configCmdLine.at(i) == "-qt-style-windows")
            dictionary[ "STYLE_WINDOWS" ] = "yes";
        else if (configCmdLine.at(i) == "-no-style-windows")
            dictionary[ "STYLE_WINDOWS" ] = "no";

        else if (configCmdLine.at(i) == "-qt-style-windowsxp")
            dictionary[ "STYLE_WINDOWSXP" ] = "yes";
        else if (configCmdLine.at(i) == "-no-style-windowsxp")
            dictionary[ "STYLE_WINDOWSXP" ] = "no";

        else if (configCmdLine.at(i) == "-qt-style-windowsvista")
            dictionary[ "STYLE_WINDOWSVISTA" ] = "yes";
        else if (configCmdLine.at(i) == "-no-style-windowsvista")
            dictionary[ "STYLE_WINDOWSVISTA" ] = "no";

        else if (configCmdLine.at(i) == "-qt-style-fusion")
            dictionary[ "STYLE_FUSION" ] = "yes";
        else if (configCmdLine.at(i) == "-no-style-fusion")
            dictionary[ "STYLE_FUSION" ] = "no";

        // Work around compiler nesting limitation
        else
            continueElse[1] = true;
        if (!continueElse[1]) {
        }

        // OpenGL Support -------------------------------------------
        else if (configCmdLine.at(i) == "-no-opengl") {
            dictionary[ "OPENGL" ]    = "no";
            dictionary[ "OPENGL_ES_2" ]     = "no";
        } else if (configCmdLine.at(i) == "-opengl-es-2") {
            dictionary[ "OPENGL" ]          = "yes";
            dictionary[ "OPENGL_ES_2" ]     = "yes";
        } else if (configCmdLine.at(i) == "-opengl") {
            dictionary[ "OPENGL" ]          = "yes";
            i++;
            if (i == argCount)
                break;

            dictionary[ "OPENGL_ES_2" ]         = "no";
            if ( configCmdLine.at(i) == "es2" ) {
                dictionary[ "OPENGL_ES_2" ]     = "yes";
            } else if ( configCmdLine.at(i) == "desktop" ) {
                // OPENGL=yes suffices
            } else if ( configCmdLine.at(i) == "dynamic" ) {
                dictionary[ "DYNAMICGL" ] = "yes";
            } else {
                cout << "Argument passed to -opengl option is not valid." << endl;
                dictionary[ "DONE" ] = "error";
                break;
            }
        }

        // OpenVG Support -------------------------------------------
        else if (configCmdLine.at(i) == "-openvg") {
            dictionary[ "OPENVG" ]    = "yes";
        } else if (configCmdLine.at(i) == "-no-openvg") {
            dictionary[ "OPENVG" ]    = "no";
        }

        // Databases ------------------------------------------------
        else if (configCmdLine.at(i) == "-qt-sql-mysql")
            dictionary[ "SQL_MYSQL" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-mysql")
            dictionary[ "SQL_MYSQL" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-mysql")
            dictionary[ "SQL_MYSQL" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-odbc")
            dictionary[ "SQL_ODBC" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-odbc")
            dictionary[ "SQL_ODBC" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-odbc")
            dictionary[ "SQL_ODBC" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-oci")
            dictionary[ "SQL_OCI" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-oci")
            dictionary[ "SQL_OCI" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-oci")
            dictionary[ "SQL_OCI" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-psql")
            dictionary[ "SQL_PSQL" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-psql")
            dictionary[ "SQL_PSQL" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-psql")
            dictionary[ "SQL_PSQL" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-tds")
            dictionary[ "SQL_TDS" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-tds")
            dictionary[ "SQL_TDS" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-tds")
            dictionary[ "SQL_TDS" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-db2")
            dictionary[ "SQL_DB2" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-db2")
            dictionary[ "SQL_DB2" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-db2")
            dictionary[ "SQL_DB2" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-sqlite")
            dictionary[ "SQL_SQLITE" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-sqlite")
            dictionary[ "SQL_SQLITE" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-sqlite")
            dictionary[ "SQL_SQLITE" ] = "no";
        else if (configCmdLine.at(i) == "-system-sqlite")
            dictionary[ "SQL_SQLITE_LIB" ] = "system";
        else if (configCmdLine.at(i) == "-qt-sql-sqlite2")
            dictionary[ "SQL_SQLITE2" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-sqlite2")
            dictionary[ "SQL_SQLITE2" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-sqlite2")
            dictionary[ "SQL_SQLITE2" ] = "no";

        else if (configCmdLine.at(i) == "-qt-sql-ibase")
            dictionary[ "SQL_IBASE" ] = "yes";
        else if (configCmdLine.at(i) == "-plugin-sql-ibase")
            dictionary[ "SQL_IBASE" ] = "plugin";
        else if (configCmdLine.at(i) == "-no-sql-ibase")
            dictionary[ "SQL_IBASE" ] = "no";

        // Image formats --------------------------------------------
        else if (configCmdLine.at(i).startsWith("-qt-imageformat-") &&
                 imageFormats.contains(configCmdLine.at(i).section('-', 3)))
            dictionary[ configCmdLine.at(i).section('-', 3).toUpper() ] = "yes";
        else if (configCmdLine.at(i).startsWith("-plugin-imageformat-") &&
                 imageFormats.contains(configCmdLine.at(i).section('-', 3)))
            dictionary[ configCmdLine.at(i).section('-', 3).toUpper() ] = "plugin";
        else if (configCmdLine.at(i).startsWith("-no-imageformat-") &&
                 imageFormats.contains(configCmdLine.at(i).section('-', 3)))
            dictionary[ configCmdLine.at(i).section('-', 3).toUpper() ] = "no";

        else if (configCmdLine.at(i) == "-no-incredibuild-xge")
            dictionary[ "INCREDIBUILD_XGE" ] = "no";
        else if (configCmdLine.at(i) == "-incredibuild-xge")
            dictionary[ "INCREDIBUILD_XGE" ] = "yes";
        else if (configCmdLine.at(i) == "-native-gestures")
            dictionary[ "NATIVE_GESTURES" ] = "yes";
        else if (configCmdLine.at(i) == "-no-native-gestures")
            dictionary[ "NATIVE_GESTURES" ] = "no";
        // Others ---------------------------------------------------
        else if (configCmdLine.at(i) == "-widgets")
            dictionary[ "WIDGETS" ] = "yes";
        else if (configCmdLine.at(i) == "-no-widgets")
            dictionary[ "WIDGETS" ] = "no";

        else if (configCmdLine.at(i) == "-gui")
            dictionary[ "GUI" ] = "yes";
        else if (configCmdLine.at(i) == "-no-gui")
            dictionary[ "GUI" ] = "no";

        else if (configCmdLine.at(i) == "-rtti")
            dictionary[ "RTTI" ] = "yes";
        else if (configCmdLine.at(i) == "-no-rtti")
            dictionary[ "RTTI" ] = "no";

        else if (configCmdLine.at(i) == "-strip")
            dictionary[ "STRIP" ] = "yes";
        else if (configCmdLine.at(i) == "-no-strip")
            dictionary[ "STRIP" ] = "no";

        else if (configCmdLine.at(i) == "-accessibility")
            dictionary[ "ACCESSIBILITY" ] = "yes";
        else if (configCmdLine.at(i) == "-no-accessibility") {
            dictionary[ "ACCESSIBILITY" ] = "no";
            cout << "Setting accessibility to NO" << endl;
        }

        else if (configCmdLine.at(i) == "-no-sse2")
            dictionary[ "SSE2" ] = "no";
        else if (configCmdLine.at(i) == "-sse2")
            dictionary[ "SSE2" ] = "yes";
        else if (configCmdLine.at(i) == "-no-sse3")
            dictionary[ "SSE3" ] = "no";
        else if (configCmdLine.at(i) == "-sse3")
            dictionary[ "SSE3" ] = "yes";
        else if (configCmdLine.at(i) == "-no-ssse3")
            dictionary[ "SSSE3" ] = "no";
        else if (configCmdLine.at(i) == "-ssse3")
            dictionary[ "SSSE3" ] = "yes";
        else if (configCmdLine.at(i) == "-no-sse4.1")
            dictionary[ "SSE4_1" ] = "no";
        else if (configCmdLine.at(i) == "-sse4.1")
            dictionary[ "SSE4_1" ] = "yes";
        else if (configCmdLine.at(i) == "-no-sse4.2")
            dictionary[ "SSE4_2" ] = "no";
        else if (configCmdLine.at(i) == "-sse4.2")
            dictionary[ "SSE4_2" ] = "yes";
        else if (configCmdLine.at(i) == "-no-avx")
            dictionary[ "AVX" ] = "no";
        else if (configCmdLine.at(i) == "-avx")
            dictionary[ "AVX" ] = "yes";
        else if (configCmdLine.at(i) == "-no-avx2")
            dictionary[ "AVX2" ] = "no";
        else if (configCmdLine.at(i) == "-avx2")
            dictionary[ "AVX2" ] = "yes";
        else if (configCmdLine.at(i) == "-no-avx512")
            dictionary[ "AVX512" ] = "";
        else if (configCmdLine.at(i) == "-avx512")
            dictionary[ "AVX512" ] = "auto";

        else if (configCmdLine.at(i) == "-no-ssl") {
            dictionary[ "SSL"] = "no";
        } else if (configCmdLine.at(i) == "-ssl") {
            dictionary[ "SSL" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-openssl") {
              dictionary[ "OPENSSL"] = "no";
        } else if (configCmdLine.at(i) == "-openssl") {
              dictionary[ "OPENSSL" ] = "yes";
              dictionary[ "SSL" ] = "yes";
        } else if (configCmdLine.at(i) == "-openssl-linked") {
              dictionary[ "OPENSSL" ] = "linked";
              dictionary[ "SSL" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-libproxy") {
              dictionary[ "LIBPROXY"] = "no";
        } else if (configCmdLine.at(i) == "-libproxy") {
              dictionary[ "LIBPROXY" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-qdbus") {
            dictionary[ "DBUS" ] = "no";
        } else if (configCmdLine.at(i) == "-qdbus") {
            dictionary[ "DBUS" ] = "auto";
        } else if (configCmdLine.at(i) == "-no-dbus") {
            dictionary[ "DBUS" ] = "no";
        } else if (configCmdLine.at(i) == "-dbus") {
            dictionary[ "DBUS" ] = "auto";
        } else if (configCmdLine.at(i) == "-dbus-linked") {
            dictionary[ "DBUS" ] = "linked";
        } else if (configCmdLine.at(i) == "-dbus-runtime") {
            dictionary[ "DBUS" ] = "runtime";
        } else if (configCmdLine.at(i) == "-audio-backend") {
            dictionary[ "AUDIO_BACKEND" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-audio-backend") {
            dictionary[ "AUDIO_BACKEND" ] = "no";
        } else if (configCmdLine.at(i) == "-wmf-backend") {
            dictionary[ "WMF_BACKEND" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-wmf-backend") {
            dictionary[ "WMF_BACKEND" ] = "no";
        } else if (configCmdLine.at(i) == "-no-qml-debug") {
            dictionary[ "QML_DEBUG" ] = "no";
        } else if (configCmdLine.at(i) == "-qml-debug") {
            dictionary[ "QML_DEBUG" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-plugin-manifests") {
            dictionary[ "PLUGIN_MANIFESTS" ] = "no";
        } else if (configCmdLine.at(i) == "-plugin-manifests") {
            dictionary[ "PLUGIN_MANIFESTS" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-slog2") {
            dictionary[ "SLOG2" ] = "no";
        } else if (configCmdLine.at(i) == "-slog2") {
            dictionary[ "SLOG2" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-imf") {
            dictionary[ "QNX_IMF" ] = "no";
        } else if (configCmdLine.at(i) == "-imf") {
            dictionary[ "QNX_IMF" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-pps") {
            dictionary[ "PPS" ] = "no";
        } else if (configCmdLine.at(i) == "-pps") {
            dictionary[ "PPS" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-lgmon") {
            dictionary[ "LGMON" ] = "no";
        } else if (configCmdLine.at(i) == "-lgmon") {
            dictionary[ "LGMON" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-system-proxies") {
            dictionary[ "SYSTEM_PROXIES" ] = "no";
        } else if (configCmdLine.at(i) == "-system-proxies") {
            dictionary[ "SYSTEM_PROXIES" ] = "yes";
        } else if (configCmdLine.at(i) == "-warnings-are-errors" ||
                   configCmdLine.at(i) == "-Werror") {
            dictionary[ "WERROR" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-warnings-are-errors") {
            dictionary[ "WERROR" ] = "no";
        } else if (configCmdLine.at(i) == "-no-headersclean") {
            dictionary[ "HEADERSCLEAN" ] = "no";
        } else if (configCmdLine.at(i) == "-headersclean") {
            dictionary[ "HEADERSCLEAN" ] = "yes";
        } else if (configCmdLine.at(i) == "-no-eventfd") {
            dictionary[ "QT_EVENTFD" ] = "no";
        } else if (configCmdLine.at(i) == "-eventfd") {
            dictionary[ "QT_EVENTFD" ] = "yes";
        }

        // Work around compiler nesting limitation
        else
            continueElse[0] = true;
        if (!continueElse[0]) {
        }

        else if (configCmdLine.at(i) == "-internal")
            dictionary[ "QMAKE_INTERNAL" ] = "yes";

        else if (configCmdLine.at(i) == "-no-syncqt")
            dictionary[ "SYNCQT" ] = "no";

        else if (configCmdLine.at(i) == "-no-qmake")
            dictionary[ "BUILD_QMAKE" ] = "no";
        else if (configCmdLine.at(i) == "-qmake")
            dictionary[ "BUILD_QMAKE" ] = "yes";

        else if (configCmdLine.at(i) == "-qtnamespace") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_NAMESPACE" ] = configCmdLine.at(i);
        } else if (configCmdLine.at(i) == "-qtlibinfix") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_LIBINFIX" ] = configCmdLine.at(i);
        } else if (configCmdLine.at(i) == "-D") {
            ++i;
            if (i == argCount)
                break;
            qmakeDefines += configCmdLine.at(i);
        } else if (configCmdLine.at(i) == "-I") {
            ++i;
            if (i == argCount)
                break;
            qmakeIncludes += configCmdLine.at(i);
        } else if (configCmdLine.at(i) == "-L") {
            ++i;
            if (i == argCount)
                break;
            QFileInfo checkDirectory(configCmdLine.at(i));
            if (!checkDirectory.isDir()) {
                cout << "Argument passed to -L option is not a directory path. Did you mean the -l option?" << endl;
                dictionary[ "DONE" ] = "error";
                break;
            }
            qmakeLibs += QString("-L" + configCmdLine.at(i));
        } else if (configCmdLine.at(i) == "-l") {
            ++i;
            if (i == argCount)
                break;
            qmakeLibs += QString("-l" + configCmdLine.at(i));
        } else if (configCmdLine.at(i).startsWith("OPENSSL_LIBS=")) {
            opensslLibs = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("OPENSSL_LIBS_DEBUG=")) {
            opensslLibsDebug = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("OPENSSL_LIBS_RELEASE=")) {
            opensslLibsRelease = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("OPENSSL_PATH=")) {
            opensslPath = QDir::fromNativeSeparators(configCmdLine.at(i).section("=", 1));
        } else if (configCmdLine.at(i).startsWith("PSQL_LIBS=")) {
            psqlLibs = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("SYBASE=")) {
            sybase = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("SYBASE_LIBS=")) {
            sybaseLibs = configCmdLine.at(i);
        } else if (configCmdLine.at(i).startsWith("DBUS_PATH=")) {
            dbusPath = QDir::fromNativeSeparators(configCmdLine.at(i).section("=", 1));
        } else if (configCmdLine.at(i).startsWith("DBUS_HOST_PATH=")) {
            dbusHostPath = QDir::fromNativeSeparators(configCmdLine.at(i).section("=", 1));
        } else if (configCmdLine.at(i).startsWith("MYSQL_PATH=")) {
            mysqlPath = QDir::fromNativeSeparators(configCmdLine.at(i).section("=", 1));
        } else if (configCmdLine.at(i).startsWith("ZLIB_LIBS=")) {
            zlibLibs = QDir::fromNativeSeparators(configCmdLine.at(i));
        }

        else if ((configCmdLine.at(i) == "-override-version") || (configCmdLine.at(i) == "-version-override")){
            ++i;
            if (i == argCount)
                break;
            dictionary[ "VERSION" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-saveconfig") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "CUSTOMCONFIG" ] = "_" + configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-confirm-license") {
            dictionary["LICENSE_CONFIRMED"] = "yes";
        }

        else if (configCmdLine.at(i) == "-make") {
            ++i;
            if (i == argCount)
                break;
            QString part = configCmdLine.at(i);
            if (!allBuildParts.contains(part)) {
                cout << "Unknown part " << part << " passed to -make." << endl;
                dictionary["DONE"] = "error";
            }
            buildParts += part;
        } else if (configCmdLine.at(i) == "-nomake") {
            ++i;
            if (i == argCount)
                break;
            QString part = configCmdLine.at(i);
            if (!allBuildParts.contains(part)) {
                cout << "Unknown part " << part << " passed to -nomake." << endl;
                dictionary["DONE"] = "error";
            }
            nobuildParts += part;
        }

        else if (configCmdLine.at(i) == "-skip") {
            ++i;
            if (i == argCount)
                break;
            QString mod = configCmdLine.at(i);
            if (!mod.startsWith(QLatin1String("qt")))
                mod.insert(0, QStringLiteral("qt"));
            if (!QFileInfo(sourcePath + "/../" + mod).isDir()) {
                cout << "Attempting to skip non-existent module " << mod << "." << endl;
                dictionary["DONE"] = "error";
            }
            skipModules += mod;
        }

        // Directories ----------------------------------------------
        else if (configCmdLine.at(i) == "-prefix") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_PREFIX" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-bindir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_BINS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-libexecdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_LIBEXECS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-libdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_LIBS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-docdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_DOCS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-headerdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_HEADERS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-plugindir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_PLUGINS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-importdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_IMPORTS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-qmldir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_QML" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-archdatadir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_ARCHDATA" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-datadir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_DATA" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-translationdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_TRANSLATIONS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-examplesdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_EXAMPLES" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-testsdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_INSTALL_TESTS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-sysroot") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "CFG_SYSROOT" ] = configCmdLine.at(i);
        }
        else if (configCmdLine.at(i) == "-no-gcc-sysroot") {
            dictionary[ "CFG_GCC_SYSROOT" ] = "no";
        }

        else if (configCmdLine.at(i) == "-hostprefix") {
            ++i;
            if (i == argCount || configCmdLine.at(i).startsWith('-'))
                dictionary[ "QT_HOST_PREFIX" ] = buildPath;
            else
                dictionary[ "QT_HOST_PREFIX" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-hostbindir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_HOST_BINS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-hostlibdir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_HOST_LIBS" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-hostdatadir") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_HOST_DATA" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-extprefix") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "QT_EXT_PREFIX" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-make-tool") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "MAKE" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i).indexOf(QRegExp("^-(en|dis)able-")) != -1) {
            // Scan to see if any specific modules and drivers are enabled or disabled
            for (QStringList::Iterator module = modules.begin(); module != modules.end(); ++module) {
                if (configCmdLine.at(i) == QString("-enable-") + (*module)) {
                    enabledModules += (*module);
                    break;
                }
                else if (configCmdLine.at(i) == QString("-disable-") + (*module)) {
                    disabledModules += (*module);
                    break;
                }
            }
        }

        else if (configCmdLine.at(i) == "-directwrite") {
            dictionary["DIRECTWRITE"] = "yes";
        } else if (configCmdLine.at(i) == "-no-directwrite") {
            dictionary["DIRECTWRITE"] = "no";
        }

        else if (configCmdLine.at(i) == "-direct2d") {
            dictionary["DIRECT2D"] = "yes";
        } else if (configCmdLine.at(i) == "-no-direct2d") {
            dictionary["DIRECT2D"] = "no";
        }

        else if (configCmdLine.at(i) == "-nis") {
            dictionary["NIS"] = "yes";
        } else if (configCmdLine.at(i) == "-no-nis") {
            dictionary["NIS"] = "no";
        }

        else if (configCmdLine.at(i) == "-cups") {
            dictionary["QT_CUPS"] = "yes";
        } else if (configCmdLine.at(i) == "-no-cups") {
            dictionary["QT_CUPS"] = "no";
        }

        else if (configCmdLine.at(i) == "-iconv") {
            dictionary["QT_ICONV"] = "yes";
        } else if (configCmdLine.at(i) == "-no-iconv") {
            dictionary["QT_ICONV"] = "no";
        } else if (configCmdLine.at(i) == "-sun-iconv") {
            dictionary["QT_ICONV"] = "sun";
        } else if (configCmdLine.at(i) == "-gnu-iconv") {
            dictionary["QT_ICONV"] = "gnu";
        }

        else if (configCmdLine.at(i) == "-no-evdev") {
            dictionary[ "QT_EVDEV" ] = "no";
        } else if (configCmdLine.at(i) == "-evdev") {
            dictionary[ "QT_EVDEV" ] = "yes";
        }

        else if (configCmdLine.at(i) == "-no-mtdev") {
            dictionary[ "QT_MTDEV" ] = "no";
        } else if (configCmdLine.at(i) == "-mtdev") {
            dictionary[ "QT_MTDEV" ] = "yes";
        }

        else if (configCmdLine.at(i) == "-inotify") {
            dictionary["QT_INOTIFY"] = "yes";
        } else if (configCmdLine.at(i) == "-no-inotify") {
            dictionary["QT_INOTIFY"] = "no";
        }

        else if (configCmdLine.at(i) == "-largefile") {
            dictionary["LARGE_FILE"] = "yes";
        }

        else if (configCmdLine.at(i) == "-fontconfig") {
            dictionary["FONT_CONFIG"] = "yes";
        } else if (configCmdLine.at(i) == "-no-fontconfig") {
            dictionary["FONT_CONFIG"] = "no";
        }

        else if (configCmdLine.at(i) == "-posix-ipc") {
            dictionary["POSIX_IPC"] = "yes";
        }

        else if (configCmdLine.at(i) == "-glib") {
            dictionary["QT_GLIB"] = "yes";
        }

        else if (configCmdLine.at(i) == "-sysconfdir") {
            ++i;
            if (i == argCount)
                break;

            dictionary["QT_INSTALL_SETTINGS"] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-android-ndk") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "ANDROID_NDK_ROOT" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-android-sdk") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "ANDROID_SDK_ROOT" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-android-ndk-platform") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "ANDROID_PLATFORM" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-android-arch") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "ANDROID_TARGET_ARCH" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-android-toolchain-version") {
            ++i;
            if (i == argCount)
                break;
            dictionary[ "ANDROID_NDK_TOOLCHAIN_VERSION" ] = configCmdLine.at(i);
        }

        else if (configCmdLine.at(i) == "-no-android-style-assets") {
            dictionary[ "ANDROID_STYLE_ASSETS" ] = "no";
        } else if (configCmdLine.at(i) == "-android-style-assets") {
            dictionary[ "ANDROID_STYLE_ASSETS" ] = "yes";
        }

        else {
            dictionary[ "DONE" ] = "error";
            cout << "Unknown option " << configCmdLine.at(i) << endl;
            break;
        }
    }

    // Ensure that QMAKESPEC exists in the mkspecs folder
    const QString mkspecPath(sourcePath + "/mkspecs");
    QDirIterator itMkspecs(mkspecPath, QDir::AllDirs | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
    QStringList mkspecs;

    while (itMkspecs.hasNext()) {
        QString mkspec = itMkspecs.next();
        // Remove base PATH
        mkspec.remove(0, mkspecPath.length() + 1);
        mkspecs << mkspec;
    }

    if (dictionary["QMAKESPEC"].toLower() == "features"
        || !mkspecs.contains(dictionary["QMAKESPEC"], Qt::CaseInsensitive)) {
        dictionary[ "DONE" ] = "error";
        if (dictionary ["QMAKESPEC_FROM"] == "commandline") {
            cout << "Invalid option \"" << dictionary["QMAKESPEC"] << "\" for -platform." << endl;
        } else if (dictionary ["QMAKESPEC_FROM"] == "env") {
            cout << "QMAKESPEC environment variable is set to \"" << dictionary["QMAKESPEC"]
                 << "\" which is not a supported platform" << endl;
        } else { // was autodetected from environment
            cout << "Unable to detect the platform from environment. Use -platform command line" << endl
                 << "argument or set the QMAKESPEC environment variable and run configure again." << endl;
        }
        cout << "See the README file for a list of supported operating systems and compilers." << endl;
    } else {
        if (dictionary[ "QMAKESPEC" ].endsWith("-icc") ||
            dictionary[ "QMAKESPEC" ].endsWith("-msvc2012") ||
            dictionary[ "QMAKESPEC" ].endsWith("-msvc2013") ||
            dictionary[ "QMAKESPEC" ].endsWith("-msvc2015")) {
            if (dictionary[ "MAKE" ].isEmpty()) dictionary[ "MAKE" ] = "nmake";
            dictionary[ "QMAKEMAKEFILE" ] = "Makefile.win32";
        } else if (dictionary[ "QMAKESPEC" ].startsWith(QLatin1String("win32-g++"))) {
            if (dictionary[ "MAKE" ].isEmpty()) dictionary[ "MAKE" ] = "mingw32-make";
            dictionary[ "QMAKEMAKEFILE" ] = "Makefile.unix";
        } else {
            if (dictionary[ "MAKE" ].isEmpty()) dictionary[ "MAKE" ] = "make";
            dictionary[ "QMAKEMAKEFILE" ] = "Makefile.win32";
        }
    }

    if (isDeviceMkspec) {
        const QStringList devices = mkspecs.filter("devices/", Qt::CaseInsensitive);
        const QStringList family = devices.filter(dictionary["XQMAKESPEC"], Qt::CaseInsensitive);

        if (family.isEmpty()) {
            dictionary[ "DONE" ] = "error";
            cout << "Error: No device matching '" << dictionary["XQMAKESPEC"] << "'." << endl;
        } else if (family.size() > 1) {
            dictionary[ "DONE" ] = "error";

            cout << "Error: Multiple matches for device '" << dictionary["XQMAKESPEC"] << "'. Candidates are:" << endl;

            foreach (const QString &device, family)
                cout << "\t* " << device << endl;
        } else {
            Q_ASSERT(family.size() == 1);
            dictionary["XQMAKESPEC"] = family.at(0);
        }

    } else {
        // Ensure that -spec (XQMAKESPEC) exists in the mkspecs folder as well
        if (dictionary.contains("XQMAKESPEC") &&
                !mkspecs.contains(dictionary["XQMAKESPEC"], Qt::CaseInsensitive)) {
            dictionary[ "DONE" ] = "error";
            cout << "Invalid option \"" << dictionary["XQMAKESPEC"] << "\" for -xplatform." << endl;
        }
    }

    // Allow tests for private classes to be compiled against internal builds
    if (dictionary["BUILDDEV"] == "yes") {
        qtConfig << "private_tests";
        if (dictionary["WERROR"] != "no")
            qmakeConfig << "warnings_are_errors";
        if (dictionary["HEADERSCLEAN"] != "no")
            qmakeConfig << "headersclean";
    } else {
        if (dictionary["WERROR"] == "yes")
            qmakeConfig << "warnings_are_errors";
        if (dictionary["HEADERSCLEAN"] == "yes")
            qmakeConfig << "headersclean";
    }

    if (dictionary["FORCE_ASSERTS"] == "yes")
        qtConfig += "force_asserts";

    for (QStringList::Iterator dis = disabledModules.begin(); dis != disabledModules.end(); ++dis) {
        modules.removeAll((*dis));
    }
    for (QStringList::Iterator ena = enabledModules.begin(); ena != enabledModules.end(); ++ena) {
        if (modules.indexOf((*ena)) == -1)
            modules += (*ena);
    }
    qtConfig += modules;

    for (QStringList::Iterator it = disabledModules.begin(); it != disabledModules.end(); ++it)
        qtConfig.removeAll(*it);

    if ((dictionary[ "REDO" ] != "yes") && (dictionary[ "HELP" ] != "yes")
            && (dictionary[ "DONE" ] != "error"))
        saveCmdLine();
}

void Configure::validateArgs()
{
    // Validate the specified config
    QString cfgpath = sourcePath + "/src/corelib/global/qconfig-" + dictionary["QCONFIG"] + ".h";

    // Try internal configurations first.
    QStringList possible_configs = QStringList()
        << "minimal"
        << "small"
        << "medium"
        << "large"
        << "full";
    int index = possible_configs.indexOf(dictionary["QCONFIG"]);
    if (index >= 0) {
        for (int c = 0; c <= index; c++) {
            qtConfig += possible_configs[c] + "-config";
        }
        if (dictionary["QCONFIG"] != "full")
            dictionary["QCONFIG_PATH"] = cfgpath;
        return;
    }

    if (!QFileInfo::exists(cfgpath)) {
        cfgpath = QFileInfo(dictionary["QCONFIG"]).absoluteFilePath();
        if (!QFileInfo::exists(cfgpath)) {
            dictionary[ "DONE" ] = "error";
            cout << "No such configuration \"" << qPrintable(dictionary["QCONFIG"]) << "\"" << endl ;
            return;
        }
    }
    dictionary["QCONFIG_PATH"] = cfgpath;
}

// Output helper functions --------------------------------[ Start ]-
/*!
    Determines the length of a string token.
*/
static int tokenLength(const char *str)
{
    if (*str == 0)
        return 0;

    const char *nextToken = strpbrk(str, " _/\n\r");
    if (nextToken == str || !nextToken)
        return 1;

    return int(nextToken - str);
}

/*!
    Prints out a string which starts at position \a startingAt, and
    indents each wrapped line with \a wrapIndent characters.
    The wrap point is set to the console width, unless that width
    cannot be determined, or is too small.
*/
void Configure::desc(const char *description, int startingAt, int wrapIndent)
{
    int linePos = startingAt;

    bool firstLine = true;
    const char *nextToken = description;
    while (*nextToken) {
        int nextTokenLen = tokenLength(nextToken);
        if (*nextToken == '\n'                         // Wrap on newline, duh
            || (linePos + nextTokenLen > outputWidth)) // Wrap at outputWidth
        {
            printf("\n");
            linePos = 0;
            firstLine = false;
            if (*nextToken == '\n')
                ++nextToken;
            continue;
        }
        if (!firstLine && linePos < wrapIndent) {  // Indent to wrapIndent
            printf("%*s", wrapIndent , "");
            linePos = wrapIndent;
            if (*nextToken == ' ') {
                ++nextToken;
                continue;
            }
        }
        printf("%.*s", nextTokenLen, nextToken);
        linePos += nextTokenLen;
        nextToken += nextTokenLen;
    }
}

/*!
    Prints out an option with its description wrapped at the
    description starting point. If \a skipIndent is true, the
    indentation to the option is not outputted (used by marked option
    version of desc()). Extra spaces between option and its
    description is filled with\a fillChar, if there's available
    space.
*/
void Configure::desc(const char *option, const char *description, bool skipIndent, char fillChar)
{
    if (!skipIndent)
        printf("%*s", optionIndent, "");

    int remaining  = descIndent - optionIndent - int(strlen(option));
    int wrapIndent = descIndent + qMax(0, 1 - remaining);
    printf("%s", option);

    if (remaining > 2) {
        printf(" "); // Space in front
        for (int i = remaining; i > 2; --i)
            printf("%c", fillChar); // Fill, if available space
    }
    printf(" "); // Space between option and description

    desc(description, wrapIndent, wrapIndent);
    printf("\n");
}

/*!
    Same as above, except it also marks an option with an '*', if
    the option is default action.
*/
void Configure::desc(const char *mark_option, const char *mark, const char *option, const char *description, char fillChar)
{
    const QString markedAs = dictionary.value(mark_option);
    if (markedAs == "auto" && markedAs == mark) // both "auto", always => +
        printf(" +  ");
    else if (markedAs == "auto")                // setting marked as "auto" and option is default => +
        printf(" %c  " , (defaultTo(mark_option) == QLatin1String(mark))? '+' : ' ');
    else if (QLatin1String(mark) == "auto" && markedAs != "no")     // description marked as "auto" and option is available => +
        printf(" %c  " , checkAvailability(mark_option) ? '+' : ' ');
    else                                        // None are "auto", (markedAs == mark) => *
        printf(" %c  " , markedAs == QLatin1String(mark) ? '*' : ' ');

    desc(option, description, true, fillChar);
}

/*!
    Modifies the default configuration based on given -platform option.
    Eg. switches to different default styles for Windows CE.
*/
void Configure::applySpecSpecifics()
{
    if (dictionary.contains("XQMAKESPEC")) {
        //Disable building tools when cross compiling.
        nobuildParts << "tools";
    }

    if (dictionary.value("XQMAKESPEC").startsWith("winphone") || dictionary.value("XQMAKESPEC").startsWith("winrt")) {
        dictionary[ "STYLE_WINDOWSXP" ]     = "no";
        dictionary[ "STYLE_WINDOWSVISTA" ]  = "no";
        dictionary[ "GIF" ]                 = "qt";
        dictionary[ "JPEG" ]                = "qt";
        dictionary[ "LIBJPEG" ]             = "qt";
        dictionary[ "LIBPNG" ]              = "qt";
        dictionary[ "FREETYPE" ]            = "yes";
        dictionary[ "OPENGL" ]              = "yes";
        dictionary[ "OPENGL_ES_2" ]         = "yes";
        dictionary[ "OPENVG" ]              = "no";
        dictionary[ "SSL" ]                 = "yes";
        dictionary[ "OPENSSL" ]             = "no";
        dictionary[ "DBUS" ]                = "no";
        dictionary[ "ZLIB" ]                = "qt";
        dictionary[ "PCRE" ]                = "qt";
        dictionary[ "ICU" ]                 = "qt";
        dictionary[ "LARGE_FILE" ]          = "no";
        dictionary[ "ANGLE" ]               = "yes";
        dictionary[ "DYNAMICGL" ]           = "no";
    } else if (dictionary.value("XQMAKESPEC").startsWith("linux")) { //TODO actually wrong.
      //TODO
        dictionary[ "STYLE_WINDOWSXP" ]     = "no";
        dictionary[ "STYLE_WINDOWSVISTA" ]  = "no";
        dictionary[ "KBD_DRIVERS" ]         = "tty";
        dictionary[ "GFX_DRIVERS" ]         = "linuxfb";
        dictionary[ "MOUSE_DRIVERS" ]       = "pc linuxtp";
        dictionary[ "OPENGL" ]              = "no";
        dictionary[ "DBUS"]                 = "no";
        dictionary[ "QT_INOTIFY" ]          = "no";
        dictionary[ "QT_CUPS" ]             = "no";
        dictionary[ "QT_GLIB" ]             = "no";
        dictionary[ "QT_ICONV" ]            = "no";
        dictionary[ "QT_EVDEV" ]            = "no";
        dictionary[ "QT_MTDEV" ]            = "no";
        dictionary[ "FONT_CONFIG" ]         = "auto";
        dictionary[ "ANGLE" ]               = "no";

        dictionary["DECORATIONS"]           = "default windows styled";
    } else if (platform() == QNX) {
        dictionary["STACK_PROTECTOR_STRONG"] = "auto";
        dictionary["SLOG2"]                 = "auto";
        dictionary["QNX_IMF"]               = "auto";
        dictionary["PPS"]                   = "auto";
        dictionary["LGMON"]                 = "auto";
        dictionary["QT_XKBCOMMON"]          = "no";
        dictionary[ "ANGLE" ]               = "no";
        dictionary[ "DYNAMICGL" ]           = "no";
        dictionary[ "FONT_CONFIG" ]         = "auto";
        dictionary[ "POLL" ]                = "poll";
    } else if (platform() == ANDROID) {
        dictionary[ "REDUCE_EXPORTS" ]      = "yes";
        dictionary[ "BUILD" ]               = "release";
        dictionary[ "BUILDALL" ]            = "no";
        dictionary[ "LARGE_FILE" ]          = "no";
        dictionary[ "ANGLE" ]               = "no";
        dictionary[ "DYNAMICGL" ]           = "no";
        dictionary[ "REDUCE_RELOCATIONS" ]  = "yes";
        dictionary[ "QT_GETIFADDRS" ]       = "no";
        dictionary[ "QT_XKBCOMMON" ]        = "no";
        dictionary["ANDROID_STYLE_ASSETS"]  = "yes";
        dictionary[ "STYLE_ANDROID" ]       = "yes";
        dictionary[ "POLL" ]                = "poll";
    }
}

// Output helper functions ---------------------------------[ Stop ]-


bool Configure::displayHelp()
{
    if (dictionary[ "HELP" ] == "yes") {
        desc("Usage: configure [options]\n\n", 0, 7);

        desc("Installation options:\n\n");

        desc("These are optional, but you may specify install directories.\n\n", 0, 1);

        desc(       "-prefix <dir>",                    "The deployment directory, as seen on the target device.\n"
                                                        "(default %CD%)\n");

        desc(       "-extprefix <dir>",                 "The installation directory, as seen on the host machine.\n"
                                                        "(default SYSROOT/PREFIX)\n");

        desc(       "-hostprefix [dir]",                "The installation directory for build tools running on the\n"
                                                        "host machine. If [dir] is not given, the current build\n"
                                                        "directory will be used. (default EXTPREFIX)\n");

        desc("You may use these to change the layout of the install. Note that all directories\n"
             "except -sysconfdir should be located under -prefix/-hostprefix:\n\n");

        desc(       "-bindir <dir>",                    "User executables will be installed to <dir>\n(default PREFIX/bin)");
        desc(       "-libdir <dir>",                    "Libraries will be installed to <dir>\n(default PREFIX/lib)");
        desc(       "-headerdir <dir>",                 "Headers will be installed to <dir>\n(default PREFIX/include)");
        desc(       "-archdatadir <dir>",               "Architecture-dependent data used by Qt will be installed to <dir>\n(default PREFIX)");
        desc(       "-libexecdir <dir>",                "Program executables will be installed to <dir>\n(default ARCHDATADIR/bin)");
        desc(       "-plugindir <dir>",                 "Plugins will be installed to <dir>\n(default ARCHDATADIR/plugins)");
        desc(       "-importdir <dir>",                 "Imports for QML1 will be installed to <dir>\n(default ARCHDATADIR/imports)");
        desc(       "-qmldir <dir>",                    "Imports for QML2 will be installed to <dir>\n(default ARCHDATADIR/qml)");
        desc(       "-datadir <dir>",                   "Data used by Qt programs will be installed to <dir>\n(default PREFIX)");
        desc(       "-docdir <dir>",                    "Documentation will be installed to <dir>\n(default DATADIR/doc)");
        desc(       "-translationdir <dir>",            "Translations of Qt programs will be installed to <dir>\n(default DATADIR/translations)");
        desc(       "-examplesdir <dir>",               "Examples will be installed to <dir>\n(default PREFIX/examples)");
        desc(       "-testsdir <dir>",                  "Tests will be installed to <dir>\n(default PREFIX/tests)\n");

        desc(       "-hostbindir <dir>",                "Host executables will be installed to <dir>\n(default HOSTPREFIX/bin)");
        desc(       "-hostlibdir <dir>",                "Host libraries will be installed to <dir>\n(default HOSTPREFIX/lib)");
        desc(       "-hostdatadir <dir>",               "Data used by qmake will be installed to <dir>\n(default HOSTPREFIX)");

        desc("\nConfigure options:\n\n");

        desc(" The defaults (*) are usually acceptable. A plus (+) denotes a default value"
             " that needs to be evaluated. If the evaluation succeeds, the feature is"
             " included. Here is a short explanation of each option:\n\n", 0, 1);

        desc("BUILD", "release","-release",             "Compile and link Qt with debugging turned off.");
        desc("BUILD", "debug",  "-debug",               "Compile and link Qt with debugging turned on.");
        desc("BUILDALL", "yes", "-debug-and-release",   "Compile and link two Qt libraries, with and without debugging turned on.\n");

        desc("FORCEDEBUGINFO", "yes","-force-debug-info", "Create symbol files for release builds.");
        desc("SEPARATE_DEBUG_INFO", "yes","-separate-debug-info", "Strip debug information into a separate file.\n");

        desc("BUILDDEV", "yes", "-developer-build",      "Compile and link Qt with Qt developer options (including auto-tests exporting)\n");

        desc("RELEASE_TOOLS", "yes", "-optimized-tools", "Build optimized host tools even in debug build.");
        desc("RELEASE_TOOLS", "no", "-no-optimized-tools", "Do not build optimized host tools even in debug build.\n");

        desc("OPENSOURCE", "opensource", "-opensource",   "Compile and link the Open-Source Edition of Qt.");
        desc("COMMERCIAL", "commercial", "-commercial",   "Compile and link the Commercial Edition of Qt.\n");

        desc(        "-c++std <edition>",               "Compile Qt with C++ standard edition (c++11, c++14, c++1z)\n"
                                                        "Default: highest supported. This option is not supported for MSVC.\n");

        desc("USE_GOLD_LINKER", "yes", "-use-gold-linker",                  "Link using the GNU gold linker (gcc only).");
        desc("USE_GOLD_LINKER", "no", "-no-use-gold-linker",                "Do not link using the GNU gold linker.\n");

        desc("ENABLE_NEW_DTAGS", "yes", "-enable-new-dtags", "Use new DTAGS for RPATH (Linux only).");
        desc("ENABLE_NEW_DTAGS", "no", "-disable-new-dtags", "Do not use new DTAGS for RPATH.\n");

        desc("SHARED", "yes",   "-shared",              "Create and use shared Qt libraries.");
        desc("SHARED", "no",    "-static",              "Create and use static Qt libraries.\n");

        desc("STATIC_RUNTIME",  "no", "-static-runtime","Statically link the C/C++ runtime library.\n");

        desc("LTCG", "yes",   "-ltcg",                  "Use Link Time Code Generation. (Release builds only)");
        desc("LTCG", "no",    "-no-ltcg",               "Do not use Link Time Code Generation.\n");

        desc(                   "-make <part>",         "Add part to the list of parts to be built at make time");
        for (int i=0; i<defaultBuildParts.size(); ++i)
            desc(               "",                     qPrintable(QString("  %1").arg(defaultBuildParts.at(i))), false, ' ');
        desc(                   "-nomake <part>",       "Exclude part from the list of parts to be built.\n");

        desc(                   "-skip <module>",       "Exclude an entire module from the build.\n");

        desc(                   "-no-compile-examples", "Install only the sources of examples.\n");

        desc("WIDGETS", "no", "-no-widgets",            "Disable Qt Widgets module.\n");
        desc("GUI", "no", "-no-gui",                    "Disable Qt GUI module.\n");

        desc("ACCESSIBILITY", "no", "-no-accessibility", "Disable accessibility support.\n");
        desc(                   "",                      "Disabling accessibility is not recommended, as it will break QStyle\n"
                                                         "and may break other internal parts of Qt.\n"
                                                         "With this switch you create a source incompatible version of Qt,\n"
                                                         "which is unsupported.\n");
        desc("ACCESSIBILITY", "yes", "-accessibility",   "Enable accessibility support.\n");

        desc(                   "-no-sql-<driver>",     "Disable SQL <driver> entirely, by default none are turned on.");
        desc(                   "-qt-sql-<driver>",     "Enable a SQL <driver> in the Qt Library.");
        desc(                   "-plugin-sql-<driver>", "Enable SQL <driver> as a plugin to be linked to at run time.\n"
                                                        "Available values for <driver>:");
        desc("SQL_MYSQL", "auto", "",                   "  mysql", ' ');
        desc("SQL_PSQL", "auto", "",                    "  psql", ' ');
        desc("SQL_OCI", "auto", "",                     "  oci", ' ');
        desc("SQL_ODBC", "auto", "",                    "  odbc", ' ');
        desc("SQL_TDS", "auto", "",                     "  tds", ' ');
        desc("SQL_DB2", "auto", "",                     "  db2", ' ');
        desc("SQL_SQLITE", "auto", "",                  "  sqlite", ' ');
        desc("SQL_SQLITE2", "auto", "",                 "  sqlite2", ' ');
        desc("SQL_IBASE", "auto", "",                   "  ibase", ' ');
        desc(                   "",                     "(drivers marked with a '+' have been detected as available on this system)\n", false, ' ');

        desc(                   "-system-sqlite",       "Use sqlite from the operating system.\n");

        desc("OPENGL", "no","-no-opengl",               "Do not support OpenGL.");
        desc("OPENGL", "no","-opengl <api>",            "Enable OpenGL support with specified API version.\n"
                                                        "Available values for <api>:");
        desc("", "no", "",                              "  desktop - Enable support for Desktop OpenGL", ' ');
        desc("", "no", "",                              "  dynamic - Enable support for dynamically loaded OpenGL (either desktop or ES)", ' ');
        desc("OPENGL_ES_2",  "yes", "",                 "  es2 - Enable support for OpenGL ES 2.0\n", ' ');

        desc("OPENVG", "no","-no-openvg",               "Disables OpenVG functionality.");
        desc("OPENVG", "yes","-openvg",                 "Enables OpenVG functionality.\n");
        desc(                   "-force-asserts",       "Activate asserts in release mode.\n");
        desc(                   "-platform <spec>",     "The operating system and compiler you are building on.\n(default %QMAKESPEC%)\n");
        desc(                   "-xplatform <spec>",    "The operating system and compiler you are cross compiling to.\n");
        desc(                   "",                     "See the README file for a list of supported operating systems and compilers.\n", false, ' ');

        desc("TARGET_OS", "*", "-target",               "Set target OS version. Currently the only valid value is 'xp' for targeting Windows XP.\n"
                                                        "MSVC >= 2012 targets Windows Vista by default.\n");

        desc(                   "-sysroot <dir>",       "Sets <dir> as the target compiler's and qmake's sysroot and also sets pkg-config paths.");
        desc(                   "-no-gcc-sysroot",      "When using -sysroot, it disables the passing of --sysroot to the compiler.\n");

        desc(                   "-qconfig <local>",     "Use src/corelib/global/qconfig-<local>.h rather than the\n"
                                                        "default 'full'.\n");

        desc("NIS",  "no",      "-no-nis",              "Do not compile NIS support.");
        desc("NIS",  "yes",     "-nis",                 "Compile NIS support.\n");

        desc("QT_ICONV",    "disable", "-no-iconv",     "Do not enable support for iconv(3).");
        desc("QT_ICONV",    "yes",     "-iconv",        "Enable support for iconv(3).");
        desc("QT_ICONV",    "yes",     "-sun-iconv",    "Enable support for iconv(3) using sun-iconv.");
        desc("QT_ICONV",    "yes",     "-gnu-iconv",    "Enable support for iconv(3) using gnu-libiconv.\n");

        desc("QT_EVDEV",    "no",      "-no-evdev",     "Do not enable support for evdev.");
        desc("QT_EVDEV",    "yes",     "-evdev",        "Enable support for evdev.");

        desc("QT_MTDEV",    "no",      "-no-mtdev",     "Do not enable support for mtdev.");
        desc("QT_MTDEV",    "yes",     "-mtdev",        "Enable support for mtdev.");

        desc("QT_INOTIFY",  "yes",     "-inotify",      "Explicitly enable Qt inotify(7) support.");
        desc("QT_INOTIFY",  "no",      "-no-inotify",   "Explicitly disable Qt inotify(7) support.\n");

        desc("QT_EVENTFD",  "yes",     "-eventfd",      "Enable eventfd(7) support in the UNIX event loop.");
        desc("QT_EVENTFD",  "no",      "-no-eventfd",   "Disable eventfd(7) support in the UNIX event loop.\n");

        desc("LARGE_FILE",  "yes",     "-largefile",    "Enables Qt to access files larger than 4 GB.\n");

        desc("POSIX_IPC",   "yes",     "-posix-ipc",    "Enable POSIX IPC.\n");

        desc("QT_GLIB",     "yes",     "-glib",         "Compile Glib support.\n");

        desc("QT_INSTALL_SETTINGS", "auto", "-sysconfdir <dir>", "Settings used by Qt programs will be looked for in\n<dir>.\n");

        desc("SYSTEM_PROXIES", "yes",  "-system-proxies",    "Use system network proxies by default.");
        desc("SYSTEM_PROXIES", "no",   "-no-system-proxies", "Do not use system network proxies by default.\n");

        desc("WERROR",      "yes",     "-warnings-are-errors",   "Make warnings be treated as errors.");
        desc("WERROR",      "no",      "-no-warnings-are-errors","Make warnings be treated normally.");

        desc(                   "-qtnamespace <name>", "Wraps all Qt library code in 'namespace name {...}'.");
        desc(                   "-qtlibinfix <infix>",  "Renames all Qt* libs to Qt*<infix>.\n");
        desc(                   "-D <define>",          "Add an explicit define to the preprocessor.");
        desc(                   "-I <includepath>",     "Add an explicit include path.");
        desc(                   "-L <librarypath>",     "Add an explicit library path.");
        desc(                   "-l <libraryname>",     "Add an explicit library name, residing in a librarypath.\n");

        desc(                   "-help, -h, -?",        "Display this information.\n");

        // 3rd party stuff options go below here --------------------------------------------------------------------------------
        desc("Third Party Libraries:\n\n");

        desc("ZLIB", "qt",      "-qt-zlib",             "Use the zlib bundled with Qt.");
        desc("ZLIB", "system",  "-system-zlib",         "Use zlib from the operating system.\nSee http://www.gzip.org/zlib\n");

        desc("PCRE", "qt",       "-qt-pcre",            "Use the PCRE library bundled with Qt.");
        desc("PCRE", "system",   "-system-pcre",        "Use the PCRE library from the operating system.\nSee http://pcre.org/\n");

        desc("ICU", "yes",       "-icu",                "Use the ICU library.");
        desc("ICU", "no",        "-no-icu",             "Do not use the ICU library.\nSee http://site.icu-project.org/\n");

        desc("GIF", "no",       "-no-gif",              "Do not compile GIF reading support.\n");

        desc("LIBPNG", "no",    "-no-libpng",           "Do not compile PNG support.");
        desc("LIBPNG", "qt",    "-qt-libpng",           "Use the libpng bundled with Qt.");
        desc("LIBPNG", "system","-system-libpng",       "Use libpng from the operating system.\nSee http://www.libpng.org/pub/png\n");

        desc("LIBJPEG", "no",    "-no-libjpeg",         "Do not compile JPEG support.");
        desc("LIBJPEG", "qt",    "-qt-libjpeg",         "Use the libjpeg bundled with Qt.");
        desc("LIBJPEG", "system","-system-libjpeg",     "Use libjpeg from the operating system.\nSee http://www.ijg.org\n");

        desc("DOUBLECONVERSION", "no",     "-no-doubleconversion",     "Use sscanf_l and snprintf_l for (imprecise) double conversion.");
        desc("DOUBLECONVERSION", "qt",     "-qt-doubleconversion",     "Use the libdouble-conversion bundled with Qt.");
        desc("DOUBLECONVERSION", "system", "-system-doubleconversion", "Use the libdouble-conversion provided by the system.");

        desc("FREETYPE", "no",   "-no-freetype",        "Do not compile in Freetype2 support.");
        desc("FREETYPE", "yes",  "-qt-freetype",        "Use the libfreetype bundled with Qt.");
        desc("FREETYPE", "system","-system-freetype",   "Use the libfreetype provided by the system.\n");

        desc("FONT_CONFIG", "yes",     "-fontconfig",   "Build with FontConfig support.");
        desc("FONT_CONFIG", "no",      "-no-fontconfig", "Do not build with FontConfig support.\n");

        desc("HARFBUZZ", "no",   "-no-harfbuzz",        "Do not compile in HarfBuzz-NG support.");
        desc("HARFBUZZ", "qt",   "-qt-harfbuzz",        "Use HarfBuzz-NG bundled with Qt to do text shaping.\n"
                                                        "It can still be disabled by setting\n"
                                                        "the QT_HARFBUZZ environment variable to \"old\".");
        desc("HARFBUZZ", "system","-system-harfbuzz",   "Use HarfBuzz-NG from the operating system\n"
                                                        "to do text shaping. It can still be disabled\n"
                                                        "by setting the QT_HARFBUZZ environment variable to \"old\".\n"
                                                        "See http://www.harfbuzz.org\n");

        if (platform() == QNX) {
            desc("SLOG2", "yes",  "-slog2",             "Compile with slog2 support.");
            desc("SLOG2", "no",  "-no-slog2",           "Do not compile with slog2 support.");
            desc("QNX_IMF", "yes",  "-imf",             "Compile with imf support.");
            desc("QNX_IMF", "no",  "-no-imf",           "Do not compile with imf support.");
            desc("PPS", "yes",  "-pps",                 "Compile with PPS support.");
            desc("PPS", "no",  "-no-pps",               "Do not compile with PPS support.");
            desc("LGMON", "yes",  "-lgmon",             "Compile with lgmon support.");
            desc("LGMON", "no",   "-no-lgmon",          "Do not compile with lgmon support.\n");
        }

        desc("ANGLE", "yes",       "-angle",            "Use the ANGLE implementation of OpenGL ES 2.0.");
        desc("ANGLE", "no",        "-no-angle",         "Do not use ANGLE.\nSee http://code.google.com/p/angleproject/\n");
        // Qt\Windows only options go below here --------------------------------------------------------------------------------
        desc("\nQt for Windows only:\n\n");

        desc("INCREDIBUILD_XGE", "no", "-no-incredibuild-xge", "Do not add IncrediBuild XGE distribution commands to custom build steps.");
        desc("INCREDIBUILD_XGE", "yes", "-incredibuild-xge",   "Add IncrediBuild XGE distribution commands to custom build steps. This will distribute MOC and UIC steps, and other custom buildsteps which are added to the INCREDIBUILD_XGE variable.\n(The IncrediBuild distribution commands are only added to Visual Studio projects)\n");

        desc("PLUGIN_MANIFESTS", "no", "-no-plugin-manifests", "Do not embed manifests in plugins.");
        desc("PLUGIN_MANIFESTS", "yes", "-plugin-manifests",   "Embed manifests in plugins.\n");
        desc("BUILD_QMAKE", "no", "-no-qmake",          "Do not compile qmake.");
        desc("BUILD_QMAKE", "yes", "-qmake",            "Compile qmake.\n");

        desc(                  "-qreal [double|float]", "typedef qreal to the specified type. The default is double.\n"
                                                        "Note that changing this flag affects binary compatibility.\n");

        desc("RTTI", "no",      "-no-rtti",             "Do not compile runtime type information.");
        desc("RTTI", "yes",     "-rtti",                "Compile runtime type information.");
        desc("STRIP", "no",     "-no-strip",            "Do not strip libraries and executables of debug info when installing.");
        desc("STRIP", "yes",    "-strip",               "Strip libraries and executables of debug info when installing.\n");

        desc("SSE2", "no",      "-no-sse2",             "Do not compile with use of SSE2 instructions.");
        desc("SSE2", "yes",     "-sse2",                "Compile with use of SSE2 instructions.");
        desc("SSE3", "no",      "-no-sse3",             "Do not compile with use of SSE3 instructions.");
        desc("SSE3", "yes",     "-sse3",                "Compile with use of SSE3 instructions.");
        desc("SSSE3", "no",     "-no-ssse3",            "Do not compile with use of SSSE3 instructions.");
        desc("SSSE3", "yes",    "-ssse3",               "Compile with use of SSSE3 instructions.");
        desc("SSE4_1", "no",    "-no-sse4.1",           "Do not compile with use of SSE4.1 instructions.");
        desc("SSE4_1", "yes",   "-sse4.1",              "Compile with use of SSE4.1 instructions.");
        desc("SSE4_2", "no",    "-no-sse4.2",           "Do not compile with use of SSE4.2 instructions.");
        desc("SSE4_2", "yes",   "-sse4.2",              "Compile with use of SSE4.2 instructions.");
        desc("AVX", "no",       "-no-avx",              "Do not compile with use of AVX instructions.");
        desc("AVX", "yes",      "-avx",                 "Compile with use of AVX instructions.");
        desc("AVX2", "no",      "-no-avx2",             "Do not compile with use of AVX2 instructions.");
        desc("AVX2", "yes",     "-avx2",                "Compile with use of AVX2 instructions.\n");
        desc("AVX512", "no",    "-no-avx512",           "Do not compile with use of AVX512 instructions.");
        desc("AVX512", "yes",   "-avx512",              "Compile with use of AVX512 instructions.\n");
        desc("SSL", "no",        "-no-ssl",             "Do not compile support for SSL.");
        desc("SSL", "yes",       "-ssl",                "Enable run-time SSL support.");
        desc("OPENSSL", "no",    "-no-openssl",         "Do not compile support for OpenSSL.");
        desc("OPENSSL", "yes",   "-openssl",            "Enable run-time OpenSSL support.");
        desc("OPENSSL", "linked","-openssl-linked",     "Enable linked OpenSSL support.\n");
        desc("LIBPROXY", "no",   "-no-libproxy",        "Do not compile in libproxy support.");
        desc("LIBPROXY", "yes",  "-libproxy",           "Compile in libproxy support (for cross compilation targets).\n");
        desc("DBUS", "no",       "-no-dbus",            "Do not compile in D-Bus support.");
        desc("DBUS", "linked",   "-dbus-linked",        "Compile in D-Bus support and link to libdbus-1.\n");
        desc("DBUS", "runtime",  "-dbus-runtime",       "Compile in D-Bus support and load libdbus-1\ndynamically.");
        desc("AUDIO_BACKEND", "no","-no-audio-backend", "Do not compile in the platform audio backend into\nQt Multimedia.");
        desc("AUDIO_BACKEND", "yes","-audio-backend",   "Compile in the platform audio backend into Qt Multimedia.\n");
        desc("WMF_BACKEND", "no","-no-wmf-backend",     "Do not compile in the windows media foundation backend\ninto Qt Multimedia.");
        desc("WMF_BACKEND", "yes","-wmf-backend",       "Compile in the windows media foundation backend into Qt Multimedia.\n");
        desc("QML_DEBUG", "no",    "-no-qml-debug",     "Do not build the in-process QML debugging support.");
        desc("QML_DEBUG", "yes",   "-qml-debug",        "Build the in-process QML debugging support.\n");
        desc("DIRECTWRITE", "no", "-no-directwrite",    "Do not build support for DirectWrite font rendering.");
        desc("DIRECTWRITE", "yes", "-directwrite",      "Build support for DirectWrite font rendering.\n");

        desc("DIRECT2D", "no",  "-no-direct2d",         "Do not build the Direct2D platform plugin.");
        desc("DIRECT2D", "yes", "-direct2d",            "Build the Direct2D platform plugin (experimental,\n"
                                                        "requires Direct2D availability on target systems,\n"
                                                        "e.g. Windows 7 with Platform Update, Windows 8, etc.)\n");

        desc(                   "-no-style-<style>",    "Disable <style> entirely.");
        desc(                   "-qt-style-<style>",    "Enable <style> in the Qt Library.\nAvailable styles: ");

        desc("STYLE_WINDOWS", "yes", "",                "  windows", ' ');
        desc("STYLE_WINDOWSXP", "auto", "",             "  windowsxp", ' ');
        desc("STYLE_WINDOWSVISTA", "auto", "",          "  windowsvista", ' ');
        desc("STYLE_FUSION", "yes", "",                 "  fusion", ' ');
        desc("NATIVE_GESTURES", "no", "-no-native-gestures", "Do not use native gestures on Windows 7.");
        desc("NATIVE_GESTURES", "yes", "-native-gestures", "Use native gestures on Windows 7.\n");
        desc("MSVC_MP", "no", "-no-mp",                 "Do not use multiple processors for compiling with MSVC");
        desc("MSVC_MP", "yes", "-mp",                   "Use multiple processors for compiling with MSVC (-MP).\n");

        desc(                   "-loadconfig <config>", "Run configure with the parameters from file configure_<config>.cache.");
        desc(                   "-saveconfig <config>", "Run configure and save the parameters in file configure_<config>.cache.");
        desc(                   "-redo",                "Run configure with the same parameters as last time.\n");
        desc(                   "-v, -verbose",         "Run configure tests with verbose output.\n");
        return true;
    }
    return false;
}

// Locate a file and return its containing directory.
QString Configure::locateFile(const QString &fileName) const
{
    const QString mkspec = dictionary.contains(QStringLiteral("XQMAKESPEC"))
        ? dictionary[QStringLiteral("XQMAKESPEC")] : dictionary[QStringLiteral("QMAKESPEC")];
    const QString file = fileName.toLower();
    QStringList pathList;
    if (file.endsWith(".h")) {
        static const QStringList headerPaths =
            Environment::headerPaths(Environment::compilerFromQMakeSpec(mkspec));
        pathList = qmakeIncludes;
        pathList += headerPaths;
    } else if (file.endsWith(".lib") ||  file.endsWith(".a")) {
        static const QStringList libPaths =
            Environment::libraryPaths(Environment::compilerFromQMakeSpec(mkspec));
        pathList = libPaths;
    } else {
         // Fallback for .exe and .dll (latter are not covered by QStandardPaths).
        static const QStringList exePaths = Environment::path();
        pathList = exePaths;
    }
    return Environment::findFileInPaths(file, pathList);
}

/*!
    Default value for options marked as "auto" if the test passes.
    (Used both by the autoDetection() below, and the desc() function
    to mark (+) the default option of autodetecting options.
*/
QString Configure::defaultTo(const QString &option)
{
    // We prefer using the system version of the 3rd party libs
    if (option == "ZLIB"
        || option == "PCRE"
        || option == "LIBJPEG"
        || option == "LIBPNG")
        return "system";

    // PNG is always built-in, never a plugin
    if (option == "PNG")
        return "yes";

    // These database drivers and image formats can be built-in or plugins.
    // Prefer plugins when Qt is shared.
    if (dictionary[ "SHARED" ] == "yes") {
        if (option == "SQL_MYSQL"
            || option == "SQL_MYSQL"
            || option == "SQL_ODBC"
            || option == "SQL_OCI"
            || option == "SQL_PSQL"
            || option == "SQL_TDS"
            || option == "SQL_DB2"
            || option == "SQL_SQLITE"
            || option == "SQL_SQLITE2"
            || option == "SQL_IBASE"
            || option == "JPEG"
            || option == "GIF")
            return "plugin";
    }

    // By default we do not want to compile OCI driver when compiling with
    // MinGW, due to lack of such support from Oracle. It prob. won't work.
    // (Customer may force the use though)
    if (dictionary["QMAKESPEC"].endsWith("-g++")
        && option == "SQL_OCI")
        return "no";

    // keep 'auto' default for msvc, since we can't set the language supported
    if (option == "C++STD"
        && dictionary["QMAKESPEC"].contains("msvc"))
        return "auto";

    if (option == "SYNCQT"
        && (!QFile::exists(sourcePath + "/.git")))
        return "no";

    return "yes";
}

bool Configure::checkAngleAvailability(QString *errorMessage /* = 0 */) const
{
    // Check for Direct X SDK (include lib and direct shader compiler 'fxc').
    // Up to Direct X SDK June 2010 and for MinGW, this is pointed to by the
    // DXSDK_DIR variable. Starting with Windows Kit 8, it is included
    // in the Windows SDK. Checking for the header is not sufficient since
    // it is also  present in MinGW.
    const QString directXSdk = Environment::detectDirectXSdk();
    const Compiler compiler = Environment::compilerFromQMakeSpec(dictionary[QStringLiteral("QMAKESPEC")]);
    if (compiler < CC_MSVC2012 && directXSdk.isEmpty()) {
        if (errorMessage)
            *errorMessage = QStringLiteral("There is no Direct X SDK installed or the environment variable \"DXSDK_DIR\" is not set.");
        return false;
    }
    const QString compilerHeader = QStringLiteral("d3dcompiler.h");
    if (!findFile(compilerHeader)) {
        if (errorMessage)
            *errorMessage = QString::fromLatin1("The header '%1' could not be found.").arg(compilerHeader);
        return false;
    }
    if (dictionary["SSE2"] != "no") {
        const QString intrinHeader = QStringLiteral("intrin.h"); // Not present on MinGW-32
        if (!findFile(intrinHeader)) {
            if (errorMessage)
                *errorMessage = QString::fromLatin1("The header '%1' required for SSE2 could not be found.").arg(intrinHeader);
            return false;
        }
    }

    const QString directXLibrary = QStringLiteral("d3d11.lib"); // Ensures at least the June 2010 DXSDK is present
    if (!findFile(directXLibrary)) {
        if (errorMessage)
            *errorMessage = QString::fromLatin1("The library '%1' could not be found.").arg(directXLibrary);
        return false;
    }
    const QString fxcBinary = QStringLiteral("fxc.exe");
    QStringList additionalPaths;
    if (!directXSdk.isEmpty())
        additionalPaths.push_back(directXSdk + QStringLiteral("/Utilities/bin/x86"));
    QString fxcPath = QStandardPaths::findExecutable(fxcBinary, additionalPaths);
    if (fxcPath.isEmpty()) {
        if (errorMessage)
            *errorMessage = QString::fromLatin1("The shader compiler '%1' could not be found.").arg(fxcBinary);
        return false;
    }
    return true;
}

QString Configure::checkAvx512Availability()
{
    static const char avx512features[][5] = { "cd", "er", "pf", "bw", "dq", "vl", "ifma", "vbmi" };

    // try AVX512 Foundation. No Foundation, nothing else works.
    if (!tryCompileProject("common/avx512", "AVX512=F"))
        return QString();

    QString available = "avx512f";
    for (int i = 0; i < sizeof(avx512features)/sizeof(avx512features[0]); ++i) {
        if (tryCompileProject("common/avx512", QStringLiteral("AVX512=%0").arg(avx512features[i]).toUpper())) {
            available += " avx512";
            available += avx512features[i];
        }
    }
    return available;
}

/*!
    Checks the system for the availability of a feature.
    Returns true if the feature is available, else false.
*/

bool Configure::checkAvailability(const QString &part)
{
    bool available = false;
    if (part == "STYLE_WINDOWSXP")
        available = (platform() == WINDOWS) && findFile("uxtheme.h");

    else if (part == "OBJCOPY")
        available = tryCompileProject("unix/objcopy");

    else if (part == "ATOMIC64")
        available = tryCompileProject("common/atomic64");

    else if (part == "ATOMIC64-LIBATOMIC")
        available = tryCompileProject("common/atomic64", "LIBS+=-latomic");

    else if (part == "ZLIB")
        available = findFile("zlib.h");

    else if (part == "PCRE")
        available = findFile("pcre.h");

    else if (part == "ICU")
        available = tryCompileProject("unix/icu");

    else if (part == "ANGLE") {
        available = checkAngleAvailability();
    }

    else if (part == "HARFBUZZ")
        available = tryCompileProject("unix/harfbuzz");

    else if (part == "LIBJPEG")
        available = findFile("jpeglib.h");
    else if (part == "LIBPNG")
        available = findFile("png.h");
    else if (part == "SQL_MYSQL")
        available = findFile("mysql.h") && findFile("libmySQL.lib");
    else if (part == "SQL_ODBC")
        available = findFile("sql.h") && findFile("sqlext.h") && findFile("odbc32.lib");
    else if (part == "SQL_OCI")
        available = findFile("oci.h") && findFile("oci.lib");
    else if (part == "SQL_PSQL")
        available = findFile("libpq-fe.h") && findFile("libpq.lib") && findFile("ws2_32.lib") && findFile("advapi32.lib");
    else if (part == "SQL_TDS")
        available = findFile("sybfront.h") && findFile("sybdb.h") && findFile("ntwdblib.lib");
    else if (part == "SQL_DB2")
        available = findFile("sqlcli.h") && findFile("sqlcli1.h") && findFile("db2cli.lib");
    else if (part == "SQL_SQLITE")
        available = true; // Built in, we have a fork
    else if (part == "SQL_SQLITE_LIB") {
        if (dictionary[ "SQL_SQLITE_LIB" ] == "system") {
            if (platform() == QNX) {
                available = true;
                dictionary[ "QT_LFLAGS_SQLITE" ] += "-lsqlite3 -lz";
            } else {
                available = findFile("sqlite3.h") && findFile("sqlite3.lib");
                if (available)
                    dictionary[ "QT_LFLAGS_SQLITE" ] += "sqlite3.lib";
            }
        } else {
            available = true;
        }
    } else if (part == "SQL_SQLITE2")
        available = findFile("sqlite.h") && findFile("sqlite.lib");
    else if (part == "SQL_IBASE")
        available = findFile("ibase.h") && (findFile("gds32_ms.lib") || findFile("gds32.lib"));
    else if (part == "SSE2")
        available = tryCompileProject("common/sse2");
    else if (part == "SSE3")
        available = tryCompileProject("common/sse3");
    else if (part == "SSSE3")
        available = tryCompileProject("common/ssse3");
    else if (part == "SSE4_1")
        available = tryCompileProject("common/sse4_1");
    else if (part == "SSE4_2")
        available = tryCompileProject("common/sse4_2");
    else if (part == "AVX")
        available = tryCompileProject("common/avx");
    else if (part == "AVX2")
        available = tryCompileProject("common/avx2");
    else if (part == "OPENSSL")
        available = findFile("openssl\\ssl.h");
    else if (part == "LIBPROXY")
        available = dictionary.contains("XQMAKESPEC") && tryCompileProject("common/libproxy");
    else if (part == "DBUS")
        available = findFile("dbus\\dbus.h");
    else if (part == "INCREDIBUILD_XGE") {
        available = !QStandardPaths::findExecutable(QStringLiteral("BuildConsole.exe")).isEmpty()
                    && !QStandardPaths::findExecutable(QStringLiteral("xgConsole.exe")).isEmpty();
    } else if (part == "WMSDK") {
        available = findFile("wmsdk.h");
    } else if (part == "AUDIO_BACKEND") {
        available = true;
    } else if (part == "WMF_BACKEND") {
        available = findFile("mfapi.h") && findFile("mf.lib");
    } else if (part == "DIRECTWRITE") {
        available = tryCompileProject("win/directwrite");
    } else if (part == "DIRECT2D") {
        available = tryCompileProject("qpa/direct2d");
    } else if (part == "ICONV") {
        available = tryCompileProject("unix/iconv") || tryCompileProject("unix/gnu-libiconv");
    } else if (part == "EVDEV") {
        available = tryCompileProject("unix/evdev");
    } else if (part == "MTDEV") {
        available = tryCompileProject("unix/mtdev");
    } else if (part == "TSLIB") {
        available = tryCompileProject("unix/tslib");
    } else if (part == "INOTIFY") {
        available = tryCompileProject("unix/inotify");
    } else if (part == "QT_EVENTFD") {
        available = tryCompileProject("unix/eventfd");
    } else if (part == "CUPS") {
        available = (platform() != WINDOWS) && (platform() != WINDOWS_RT) && tryCompileProject("unix/cups");
    } else if (part == "STACK_PROTECTOR_STRONG") {
        available = (platform() == QNX) && compilerSupportsFlag("qcc -fstack-protector-strong");
    } else if (part == "SLOG2") {
        available = tryCompileProject("unix/slog2");
    } else if (part == "QNX_IMF") {
        available = tryCompileProject("unix/qqnx_imf");
    } else if (part == "PPS") {
        available = (platform() == QNX) && tryCompileProject("unix/pps");
    } else if (part == "LGMON") {
        available = (platform() == QNX) && tryCompileProject("unix/lgmon");
    } else if (part == "NEON") {
        available = dictionary["QT_CPU_FEATURES"].contains("neon");
    } else if (part == "FONT_CONFIG") {
        available = tryCompileProject("unix/fontconfig");
    } else if (part == "DOUBLECONVERSION") {
        available = tryCompileProject("unix/doubleconversion");
    }

    return available;
}

/*
    Autodetect options marked as "auto".
*/
void Configure::autoDetection()
{
    cout << "Running configuration tests..." << endl;

    // Auto-detect CPU architectures.
    detectArch();

    if (dictionary["C++STD"] == "auto" && !dictionary["QMAKESPEC"].contains("msvc")) {
        if (!tryCompileProject("common/c++11")) {
            dictionary["DONE"] = "error";
            cout << "ERROR: Qt requires a C++11 compiler and yours does not seem to be that." << endl
                 << "Please upgrade." << endl;
            return;
        } else if (!tryCompileProject("common/c++14")) {
            dictionary["C++STD"] = "c++11";
        } else if (!tryCompileProject("common/c++1z")) {
            dictionary["C++STD"] = "c++14";
        } else {
            dictionary["C++STD"] = "c++1z";
        }
    }

    if (!dictionary["QMAKESPEC"].contains("msvc")) {
        if (tryCompileProject("common/c++default", QString(), false)) {
            QFile iiFile(buildPath + "/config.tests/common/c++default/c++default.ii");
            if (iiFile.open(QIODevice::ReadOnly)) {
                QString content = QString::fromUtf8(iiFile.readAll());
                QRegExp expr("\\b([0-9]+)L\\b");
                if (expr.indexIn(content) != -1)
                    dictionary["CFG_STDCXX_DEFAULT"] = expr.cap(1);
            }
        }
        if (dictionary["CFG_STDCXX_DEFAULT"].isEmpty()) {
            cout << "Could not determine the C++ standard the compiler uses by default, assuming C++98." << endl;
            dictionary["CFG_STDCXX_DEFAULT"] = "199711";
        }
    }

    if (dictionary["ATOMIC64"] == "auto")
        dictionary["ATOMIC64"] = checkAvailability("ATOMIC64") ? "yes" :
                                 checkAvailability("ATOMIC64-LIBATOMIC") ? "libatomic" : "no";

    // Style detection
    if (dictionary["STYLE_WINDOWSXP"] == "auto")
        dictionary["STYLE_WINDOWSXP"] = checkAvailability("STYLE_WINDOWSXP") ? defaultTo("STYLE_WINDOWSXP") : "no";
    if (dictionary["STYLE_WINDOWSVISTA"] == "auto") // Vista style has the same requirements as XP style
        dictionary["STYLE_WINDOWSVISTA"] = checkAvailability("STYLE_WINDOWSXP") ? defaultTo("STYLE_WINDOWSVISTA") : "no";

    // Compression detection
    if (dictionary["ZLIB"] == "auto")
        dictionary["ZLIB"] =  checkAvailability("ZLIB") ? defaultTo("ZLIB") : "qt";

    // PCRE detection
    if (dictionary["PCRE"] == "auto")
        dictionary["PCRE"] = checkAvailability("PCRE") ? defaultTo("PCRE") : "qt";

    // ICU detection
    if (dictionary["ICU"] == "auto")
        dictionary["ICU"] = checkAvailability("ICU") ? "yes" : "no";

    // ANGLE detection
    if (dictionary["ANGLE"] == "auto") {
        if (dictionary["OPENGL_ES_2"] == "yes") {
            dictionary["ANGLE"] = checkAngleAvailability() ? "yes" : "no";
            dictionary["ANGLE_FROM"] = "detected";
        } else {
            dictionary["ANGLE"] = "no";
        }
    }

    // Dynamic GL. This must be explicitly requested, no autodetection.
    if (dictionary["DYNAMICGL"] == "auto")
        dictionary["DYNAMICGL"] = "no";

    // Image format detection
    if (dictionary["GIF"] == "auto")
        dictionary["GIF"] = defaultTo("GIF");
    if (dictionary["JPEG"] == "auto")
        dictionary["JPEG"] = defaultTo("JPEG");
    if (dictionary["PNG"] == "auto")
        dictionary["PNG"] = defaultTo("PNG");
    if (dictionary["LIBJPEG"] == "auto")
        dictionary["LIBJPEG"] = checkAvailability("LIBJPEG") ? defaultTo("LIBJPEG") : "qt";
    if (dictionary["LIBPNG"] == "auto")
        dictionary["LIBPNG"] = checkAvailability("LIBPNG") ? defaultTo("LIBPNG") : "qt";

    // SQL detection (not on by default)
    if (dictionary["SQL_MYSQL"] == "auto")
        dictionary["SQL_MYSQL"] = checkAvailability("SQL_MYSQL") ? defaultTo("SQL_MYSQL") : "no";
    if (dictionary["SQL_ODBC"] == "auto")
        dictionary["SQL_ODBC"] = checkAvailability("SQL_ODBC") ? defaultTo("SQL_ODBC") : "no";
    if (dictionary["SQL_OCI"] == "auto")
        dictionary["SQL_OCI"] = checkAvailability("SQL_OCI") ? defaultTo("SQL_OCI") : "no";
    if (dictionary["SQL_PSQL"] == "auto")
        dictionary["SQL_PSQL"] = checkAvailability("SQL_PSQL") ? defaultTo("SQL_PSQL") : "no";
    if (dictionary["SQL_TDS"] == "auto")
        dictionary["SQL_TDS"] = checkAvailability("SQL_TDS") ? defaultTo("SQL_TDS") : "no";
    if (dictionary["SQL_DB2"] == "auto")
        dictionary["SQL_DB2"] = checkAvailability("SQL_DB2") ? defaultTo("SQL_DB2") : "no";
    if (dictionary["SQL_SQLITE"] == "auto")
        dictionary["SQL_SQLITE"] = checkAvailability("SQL_SQLITE") ? defaultTo("SQL_SQLITE") : "no";
    if (dictionary["SQL_SQLITE_LIB"] == "system")
        if (!checkAvailability("SQL_SQLITE_LIB"))
            dictionary["SQL_SQLITE_LIB"] = "no";
    if (dictionary["SQL_SQLITE2"] == "auto")
        dictionary["SQL_SQLITE2"] = checkAvailability("SQL_SQLITE2") ? defaultTo("SQL_SQLITE2") : "no";
    if (dictionary["SQL_IBASE"] == "auto")
        dictionary["SQL_IBASE"] = checkAvailability("SQL_IBASE") ? defaultTo("SQL_IBASE") : "no";
    if (dictionary["SSE2"] == "auto")
        dictionary["SSE2"] = checkAvailability("SSE2") ? "yes" : "no";
    if (dictionary["SSE3"] == "auto")
        dictionary["SSE3"] = checkAvailability("SSE3") ? "yes" : "no";
    if (dictionary["SSSE3"] == "auto")
        dictionary["SSSE3"] = checkAvailability("SSSE3") ? "yes" : "no";
    if (dictionary["SSE4_1"] == "auto")
        dictionary["SSE4_1"] = checkAvailability("SSE4_1") ? "yes" : "no";
    if (dictionary["SSE4_2"] == "auto")
        dictionary["SSE4_2"] = checkAvailability("SSE4_2") ? "yes" : "no";
    if (dictionary["AVX"] == "auto")
        dictionary["AVX"] = checkAvailability("AVX") ? "yes" : "no";
    if (dictionary["AVX2"] == "auto")
        dictionary["AVX2"] = checkAvailability("AVX2") ? "yes" : "no";
    if (dictionary["AVX512"] == "auto")
        dictionary["AVX512"] = checkAvx512Availability();
    if (dictionary["NEON"] == "auto")
        dictionary["NEON"] = checkAvailability("NEON") ? "yes" : "no";
    if (dictionary["SSL"] == "auto") {
        if (platform() == WINDOWS_RT) {
            dictionary["SSL"] = "yes";
        } else {
            // On Desktop Windows openssl and ssl always have the same value (for now). OpenSSL is
            // the only backend and if it is available and should be built, that also means that
            // SSL support in general is enabled.
            if (dictionary["OPENSSL"] == "auto")
                dictionary["OPENSSL"] = checkAvailability("OPENSSL") ? "yes" : "no";
            dictionary["SSL"] = dictionary["OPENSSL"];
        }
    }
    if (dictionary["OPENSSL"] == "auto")
        dictionary["OPENSSL"] = checkAvailability("OPENSSL") ? "yes" : "no";
    if (dictionary["LIBPROXY"] == "auto")
        dictionary["LIBPROXY"] = checkAvailability("LIBPROXY") ? "yes" : "no";
    if (dictionary["DBUS"] == "auto")
        dictionary["DBUS"] = checkAvailability("DBUS") ? "linked" : "runtime";
    if (dictionary["QML_DEBUG"] == "auto")
        dictionary["QML_DEBUG"] = dictionary["QML"] == "yes" ? "yes" : "no";
    if (dictionary["AUDIO_BACKEND"] == "auto")
        dictionary["AUDIO_BACKEND"] = checkAvailability("AUDIO_BACKEND") ? "yes" : "no";
    if (dictionary["WMF_BACKEND"] == "auto")
        dictionary["WMF_BACKEND"] = checkAvailability("WMF_BACKEND") ? "yes" : "no";
    if (dictionary["WMSDK"] == "auto")
        dictionary["WMSDK"] = checkAvailability("WMSDK") ? "yes" : "no";

    // Detection of IncrediBuild buildconsole
    if (dictionary["INCREDIBUILD_XGE"] == "auto")
        dictionary["INCREDIBUILD_XGE"] = checkAvailability("INCREDIBUILD_XGE") ? "yes" : "no";

    // Detection of iconv support
    if (dictionary["QT_ICONV"] == "auto")
        dictionary["QT_ICONV"] = checkAvailability("ICONV") ? "yes" : "no";

    // Detection of evdev support
    if (dictionary["QT_EVDEV"] == "auto")
        dictionary["QT_EVDEV"] = checkAvailability("EVDEV") ? "yes" : "no";

    // Detection of mtdev support
    if (dictionary["QT_MTDEV"] == "auto")
        dictionary["QT_MTDEV"] = checkAvailability("MTDEV") ? "yes" : "no";

    // Detection of tslib support
    if (dictionary["QT_TSLIB"] == "auto")
        dictionary["QT_TSLIB"] = checkAvailability("TSLIB") ? "yes" : "no";

    // Detection of inotify
    if (dictionary["QT_INOTIFY"] == "auto")
        dictionary["QT_INOTIFY"] = checkAvailability("INOTIFY") ? "yes" : "no";

    // Detection of cups support
    if (dictionary["QT_CUPS"] == "auto")
        dictionary["QT_CUPS"] = checkAvailability("CUPS") ? "yes" : "no";

    // Detection of -fstack-protector-strong support
    if (dictionary["STACK_PROTECTOR_STRONG"] == "auto")
        dictionary["STACK_PROTECTOR_STRONG"] = checkAvailability("STACK_PROTECTOR_STRONG") ? "yes" : "no";

    if (platform() == QNX && dictionary["SLOG2"] == "auto") {
        dictionary["SLOG2"] = checkAvailability("SLOG2") ? "yes" : "no";
    }

    if (platform() == QNX && dictionary["QNX_IMF"] == "auto") {
        dictionary["QNX_IMF"] = checkAvailability("QNX_IMF") ? "yes" : "no";
    }

    if (dictionary["PPS"] == "auto") {
        dictionary["PPS"] = checkAvailability("PPS") ? "yes" : "no";
    }

    if (platform() == QNX && dictionary["LGMON"] == "auto") {
        dictionary["LGMON"] = checkAvailability("LGMON") ? "yes" : "no";
    }

    if (dictionary["QT_EVENTFD"] == "auto")
        dictionary["QT_EVENTFD"] = checkAvailability("QT_EVENTFD") ? "yes" : "no";

    if (dictionary["FONT_CONFIG"] == "auto")
        dictionary["FONT_CONFIG"] = checkAvailability("FONT_CONFIG") ? "yes" : "no";

    if (dictionary["DOUBLECONVERSION"] == "auto")
        dictionary["DOUBLECONVERSION"] = checkAvailability("DOUBLECONVERSION") ? "system" : "qt";

    if (dictionary["DIRECTWRITE"] == "auto")
        dictionary["DIRECTWRITE"] = checkAvailability("DIRECTWRITE") ? "yes" : "no";

    // Mark all unknown "auto" to the default value..
    for (QMap<QString,QString>::iterator i = dictionary.begin(); i != dictionary.end(); ++i) {
        if (i.value() == "auto")
            i.value() = defaultTo(i.key());
    }

    cout << "Done running configuration tests." << endl;
}

bool Configure::verifyConfiguration()
{
    bool prompt = false;
    if (dictionary["C++STD"] != "auto"
            && dictionary["QMAKESPEC"].contains("msvc")) {
        cout << "WARNING: It is not possible to change the C++ standard edition with MSVC compilers. "
                "Therefore, the option -c++std " << dictionary["C++STD"] << " was ignored." << endl << endl;
        dictionary["C++STD"] = "auto";
    }

    if (dictionary["STATIC_RUNTIME"] == "yes" && dictionary["SHARED"] == "yes") {
        cout << "ERROR: -static-runtime requires -static" << endl << endl;
        dictionary[ "DONE" ] = "error";
    }

    if (dictionary["SEPARATE_DEBUG_INFO"] == "yes") {
        if (dictionary[ "SHARED" ] == "no") {
            cout << "ERROR: -separate-debug-info is incompatible with -static" << endl << endl;
            dictionary[ "DONE" ] = "error";
        } else if (dictionary[ "BUILD" ] != "debug"
                && dictionary[ "BUILDALL" ] == "no"
                && dictionary[ "FORCEDEBUGINFO" ] == "no") {
            cout << "ERROR: -separate-debug-info needs -debug, -debug-and-release, or -force-debug-info" << endl << endl;
            dictionary[ "DONE" ] = "error";
        } else if (dictionary["SEPARATE_DEBUG_INFO"] == "yes" && !checkAvailability("OBJCOPY")) {
            cout << "ERROR: -separate-debug-info was requested but this binutils does not support it." << endl;
            dictionary[ "DONE" ] = "error";
        }
    }

    if (dictionary["SQL_SQLITE_LIB"] == "no" && dictionary["SQL_SQLITE"] != "no") {
        cout << "WARNING: Configure could not detect the presence of a system SQLite3 lib." << endl
             << "Configure will therefore continue with the SQLite3 lib bundled with Qt." << endl;
        dictionary["SQL_SQLITE_LIB"] = "qt"; // Set to Qt's bundled lib an continue
        prompt = true;
    }
    if (dictionary["QMAKESPEC"].endsWith("-g++")
        && dictionary["SQL_OCI"] != "no") {
        cout << "WARNING: Qt does not support compiling the Oracle database driver with" << endl
             << "MinGW, due to lack of such support from Oracle. Consider disabling the" << endl
             << "Oracle driver, as the current build will most likely fail." << endl;
        prompt = true;
    }
    if (dictionary["QMAKESPEC"].endsWith("win32-msvc2008") || dictionary["QMAKESPEC"].endsWith("win32-msvc2010")) {
        cout << "ERROR: Qt cannot be compiled with Visual Studio 2008 or 2010." << endl;
        prompt = true;
    }
    if (0 != dictionary["ARM_FPU_TYPE"].size()) {
            QStringList l= QStringList()
                    << "softvfp"
                    << "softvfp+vfpv2"
                    << "vfpv2";
            if (!(l.contains(dictionary["ARM_FPU_TYPE"])))
                    cout << QString("WARNING: Using unsupported fpu flag: %1").arg(dictionary["ARM_FPU_TYPE"]) << endl;
    }
    if (dictionary["DIRECTWRITE"] == "yes" && !checkAvailability("DIRECTWRITE")) {
        cout << "WARNING: To be able to compile the DirectWrite font engine you will" << endl
             << "need the Microsoft DirectWrite and Microsoft Direct2D development" << endl
             << "files such as headers and libraries." << endl;
        prompt = true;
    }
#if WINVER > 0x0601
    if (dictionary["TARGET_OS"] == "xp") {
        cout << "WARNING: Cannot use Windows Kit 8 to build Qt for Windows XP.\n"
                "WARNING: Windows SDK v7.1A is recommended.\n";
    }
#endif

    if (dictionary["DIRECT2D"] == "yes" && !checkAvailability("DIRECT2D")) {
        cout << "WARNING: To be able to build the Direct2D platform plugin you will" << endl
             << "need the Microsoft DirectWrite and Microsoft Direct2D development" << endl
             << "files such as headers and libraries." << endl;
        prompt = true;
    }

    // -angle given on command line, but Direct X cannot be found.
    if (dictionary["ANGLE"] != "no") {
        QString errorMessage;
        if (!checkAngleAvailability(&errorMessage)) {
            cout << "WARNING: ANGLE specified, but the DirectX SDK could not be detected:" << endl
                 << "  " << qPrintable(errorMessage) << endl
                 <<  "The build will most likely fail." << endl;
            prompt = true;
        }
    } else if (dictionary["ANGLE"] == "no") {
        if (dictionary["ANGLE_FROM"] == "detected") {
            QString errorMessage;
            checkAngleAvailability(&errorMessage);
            cout << "WARNING: The DirectX SDK could not be detected:" << endl
                 << "  " << qPrintable(errorMessage) << endl
                 << "Disabling the ANGLE backend." << endl;
            prompt = true;
        }
        if ((dictionary["OPENGL_ES_2"] == "yes") && !dictionary.contains("XQMAKESPEC")) {
            cout << endl << "WARNING: Using OpenGL ES 2.0 without ANGLE." << endl
                 << "Specify -opengl desktop to use Open GL." << endl
                 <<  "The build will most likely fail." << endl;
            prompt = true;
        }
    }

    if (dictionary["DYNAMICGL"] == "yes") {
        if (dictionary["OPENGL_ES_2"] == "yes" || dictionary["ANGLE"] != "no") {
            cout << "ERROR: Dynamic OpenGL cannot be used with -angle." << endl;
            dictionary[ "DONE" ] = "error";
        }
    }

    if (dictionary["OPENGL"] == "no" || dictionary["OPENGL_ES_2"] == "no") {
        if (dictionary.value("XQMAKESPEC").startsWith("winphone") ||
                dictionary.value("XQMAKESPEC").startsWith("winrt")) {
            cout << "ERROR: Option -no-opengl is not valid for WinRT." << endl;
            dictionary[ "DONE" ] = "error";
        }
    }

    if (prompt)
        promptKeyPress();

    return true;
}

void Configure::prepareConfigTests()
{
    // Generate an empty .qmake.cache file for config.tests
    QDir buildDir(buildPath);
    bool success = true;
    if (!buildDir.exists("config.tests"))
        success = buildDir.mkdir("config.tests");

    QString fileName(buildPath + "/config.tests/.qmake.cache");
    QFile cacheFile(fileName);
    success &= cacheFile.open(QIODevice::WriteOnly);
    cacheFile.close();

    if (!success) {
        cout << "Failed to create file " << qPrintable(QDir::toNativeSeparators(fileName)) << endl;
        dictionary[ "DONE" ] = "error";
    }
}

void Configure::generateOutputVars()
{
    // Generate variables for output
    QString build = dictionary[ "BUILD" ];
    bool buildAll = (dictionary[ "BUILDALL" ] == "yes");
    if (build == "debug") {
        if (buildAll)
            qtConfig += "debug_and_release build_all release";
        qtConfig += "debug";
    } else if (build == "release") {
        if (buildAll)
            qtConfig += "debug_and_release build_all debug";
        qtConfig += "release";
    }
    if (dictionary[ "RELEASE_TOOLS" ] == "yes")
        qtConfig += "release_tools";

    if (dictionary[ "C++STD" ] == "c++11")
        qtConfig += "c++11";
    else if (dictionary[ "C++STD" ] == "c++14")
        qtConfig += "c++11 c++14";
    else if (dictionary[ "C++STD" ] == "c++1z")
        qtConfig += "c++11 c++14 c++1z";
    if (!dictionary[ "CFG_STDCXX_DEFAULT" ].isEmpty())
        qmakeVars += "QT_COMPILER_STDCXX = " + dictionary[ "CFG_STDCXX_DEFAULT" ];

    if (dictionary[ "USE_GOLD_LINKER" ] == "yes")
        qmakeConfig += "use_gold_linker";

    if (dictionary[ "ENABLE_NEW_DTAGS" ] == "yes")
        qmakeConfig += "enable_new_dtags";

    if (dictionary[ "SHARED" ] == "no")
        qtConfig += "static";
    else
        qtConfig += "shared";

    if (dictionary[ "STATIC_RUNTIME" ] == "yes")
        qtConfig += "static_runtime";

    if (dictionary[ "GUI" ] == "no") {
        qtConfig += "no-gui";
        dictionary [ "WIDGETS" ] = "no";
    }

    if (dictionary[ "WIDGETS" ] == "no")
        qtConfig += "no-widgets";

    // Compression --------------------------------------------------
    if (dictionary[ "ZLIB" ] == "qt")
        qtConfig += "zlib";
    else if (dictionary[ "ZLIB" ] == "system")
        qtConfig += "system-zlib";

    // PCRE ---------------------------------------------------------
    if (dictionary[ "PCRE" ] == "qt")
        qmakeConfig += "pcre";

    // ICU ---------------------------------------------------------
    if (dictionary[ "ICU" ] == "yes")
        qtConfig  += "icu";

    // ANGLE --------------------------------------------------------
    if (dictionary[ "ANGLE" ] != "no") {
        qtConfig  += "angle";
    }

    // Dynamic OpenGL loading ---------------------------------------
    if (dictionary[ "DYNAMICGL" ] != "no") {
        qtConfig += "dynamicgl";
    }

    // Image formates -----------------------------------------------
    if (dictionary[ "GIF" ] == "no")
        qtConfig += "no-gif";
    else if (dictionary[ "GIF" ] == "yes")
        qtConfig += "gif";

    if (dictionary[ "JPEG" ] == "no")
        qtConfig += "no-jpeg";
    else if (dictionary[ "JPEG" ] == "yes")
        qtConfig += "jpeg";
    if (dictionary[ "LIBJPEG" ] == "system")
        qtConfig += "system-jpeg";

    if (dictionary[ "PNG" ] == "no")
        qtConfig += "no-png";
    else if (dictionary[ "PNG" ] == "yes")
        qtConfig += "png";
    if (dictionary[ "LIBPNG" ] == "system")
        qtConfig += "system-png";

    // Double conversion -----------------------------------------------
    if (dictionary[ "DOUBLECONVERSION" ] == "qt")
        qtConfig += "doubleconversion";
    else if (dictionary[ "DOUBLECONVERSION" ] == "system")
        qtConfig += "system-doubleconversion";
    else if (dictionary[ "DOUBLECONVERSION" ] == "no")
        qtConfig += "no-doubleconversion";

    // Text rendering --------------------------------------------------
    if (dictionary[ "FREETYPE" ] == "yes")
        qtConfig += "freetype";
    else if (dictionary[ "FREETYPE" ] == "system")
        qtConfig += "system-freetype";

    if (dictionary[ "HARFBUZZ" ] == "qt")
        qtConfig += "harfbuzz";
    else if (dictionary[ "HARFBUZZ" ] == "system")
        qtConfig += "system-harfbuzz";

    // Styles -------------------------------------------------------
    if (dictionary[ "STYLE_WINDOWS" ] == "yes")
        qmakeStyles += "windows";

    if (dictionary[ "STYLE_FUSION" ] == "yes")
        qmakeStyles += "fusion";

    if (dictionary[ "STYLE_WINDOWSXP" ] == "yes")
        qmakeStyles += "windowsxp";

    if (dictionary[ "STYLE_WINDOWSVISTA" ] == "yes")
        qmakeStyles += "windowsvista";

    if (dictionary[ "STYLE_ANDROID" ] == "yes")
        qmakeStyles += "android";

    // Databases ----------------------------------------------------
    if (dictionary[ "SQL_MYSQL" ] == "yes")
        qmakeSql += "mysql";
    else if (dictionary[ "SQL_MYSQL" ] == "plugin")
        qmakeSqlPlugins += "mysql";

    if (dictionary[ "SQL_ODBC" ] == "yes")
        qmakeSql += "odbc";
    else if (dictionary[ "SQL_ODBC" ] == "plugin")
        qmakeSqlPlugins += "odbc";

    if (dictionary[ "SQL_OCI" ] == "yes")
        qmakeSql += "oci";
    else if (dictionary[ "SQL_OCI" ] == "plugin")
        qmakeSqlPlugins += "oci";

    if (dictionary[ "SQL_PSQL" ] == "yes")
        qmakeSql += "psql";
    else if (dictionary[ "SQL_PSQL" ] == "plugin")
        qmakeSqlPlugins += "psql";

    if (dictionary[ "SQL_TDS" ] == "yes")
        qmakeSql += "tds";
    else if (dictionary[ "SQL_TDS" ] == "plugin")
        qmakeSqlPlugins += "tds";

    if (dictionary[ "SQL_DB2" ] == "yes")
        qmakeSql += "db2";
    else if (dictionary[ "SQL_DB2" ] == "plugin")
        qmakeSqlPlugins += "db2";

    if (dictionary[ "SQL_SQLITE" ] == "yes")
        qmakeSql += "sqlite";
    else if (dictionary[ "SQL_SQLITE" ] == "plugin")
        qmakeSqlPlugins += "sqlite";

    if (dictionary[ "SQL_SQLITE_LIB" ] == "system")
        qmakeConfig += "system-sqlite";

    if (dictionary[ "SQL_SQLITE2" ] == "yes")
        qmakeSql += "sqlite2";
    else if (dictionary[ "SQL_SQLITE2" ] == "plugin")
        qmakeSqlPlugins += "sqlite2";

    if (dictionary[ "SQL_IBASE" ] == "yes")
        qmakeSql += "ibase";
    else if (dictionary[ "SQL_IBASE" ] == "plugin")
        qmakeSqlPlugins += "ibase";

    // Other options ------------------------------------------------
    if (dictionary[ "BUILDALL" ] == "yes") {
        qtConfig += "build_all";
    }
    if (dictionary[ "SEPARATE_DEBUG_INFO" ] == "yes")
        qtConfig += "separate_debug_info";
    if (dictionary[ "FORCEDEBUGINFO" ] == "yes")
        qmakeConfig += "force_debug_info";
    qmakeConfig += dictionary[ "BUILD" ];

    if (buildParts.isEmpty()) {
        buildParts = defaultBuildParts;

        if (dictionary["BUILDDEV"] == "yes")
            buildParts += "tests";
    }
    while (!nobuildParts.isEmpty())
        buildParts.removeAll(nobuildParts.takeFirst());
    if (!buildParts.contains("libs"))
        buildParts += "libs";
    buildParts.removeDuplicates();
    if (dictionary[ "COMPILE_EXAMPLES" ] == "yes")
        qmakeConfig += "compile_examples";

    if (dictionary["MSVC_MP"] == "yes")
        qmakeConfig += "msvc_mp";

    if (dictionary[ "SHARED" ] == "yes") {
        QString version = dictionary[ "VERSION" ];
        if (!version.isEmpty()) {
            qmakeVars += "QMAKE_QT_VERSION_OVERRIDE = " + version.left(version.indexOf('.'));
            version.remove(QLatin1Char('.'));
        }
    }

    if (dictionary["ATOMIC64"] == "libatomic")
        qmakeConfig += "atomic64-libatomic";

    if (dictionary[ "ACCESSIBILITY" ] == "yes")
        qtConfig += "accessibility";

    if (!qmakeLibs.isEmpty())
        qmakeVars += "LIBS           += " + formatPaths(qmakeLibs);

    if (!dictionary["QT_LFLAGS_SQLITE"].isEmpty())
        qmakeVars += "QT_LFLAGS_SQLITE += " + dictionary["QT_LFLAGS_SQLITE"];

    if (dictionary[ "OPENGL" ] == "yes")
        qtConfig += "opengl";

    if (dictionary["OPENGL_ES_2"] == "yes") {
        qtConfig += "opengles2";
        qtConfig += "egl";
    }

    if (dictionary["OPENVG"] == "yes") {
        qtConfig += "openvg";
        qtConfig += "egl";
    }

    if (dictionary[ "SSL" ] == "yes")
        qtConfig += "ssl";

    if (dictionary[ "OPENSSL" ] == "yes")
        qtConfig += "openssl";
    else if (dictionary[ "OPENSSL" ] == "linked")
        qtConfig += "openssl-linked";

    if (dictionary[ "LIBPROXY" ] == "yes")
        qtConfig += "libproxy";

    if (dictionary[ "DBUS" ] == "runtime")
        qtConfig += "dbus";
    else if (dictionary[ "DBUS" ] == "linked")
        qtConfig += "dbus dbus-linked";

    // ### Vestige
    if (dictionary["AUDIO_BACKEND"] == "yes")
        qtConfig += "audio-backend";

    if (dictionary["QML_DEBUG"] == "no")
        qtConfig += "no-qml-debug";

    if (dictionary["WMF_BACKEND"] == "yes")
        qtConfig += "wmf-backend";

    if (dictionary["DIRECTWRITE"] == "yes")
        qtConfig += "directwrite";

    if (dictionary["DIRECT2D"] == "yes")
        qtConfig += "direct2d";

    if (dictionary[ "NATIVE_GESTURES" ] == "yes")
        qtConfig += "native-gestures";

    qtConfig += "qpa";

    if (dictionary["NIS"] == "yes")
        qtConfig += "nis";

    if (dictionary["QT_CUPS"] == "yes")
        qtConfig += "cups";

    if (dictionary["QT_ICONV"] == "yes")
        qtConfig += "iconv";
    else if (dictionary["QT_ICONV"] == "sun")
        qtConfig += "sun-libiconv";
    else if (dictionary["QT_ICONV"] == "gnu")
        qtConfig += "gnu-libiconv";

    if (dictionary["QT_EVDEV"] == "yes")
        qtConfig += "evdev";

    if (dictionary["QT_MTDEV"] == "yes")
        qtConfig += "mtdev";

    if (dictionary[ "QT_TSLIB" ] == "yes")
        qtConfig += "tslib";

    if (dictionary["QT_INOTIFY"] == "yes")
        qtConfig += "inotify";

    if (dictionary["QT_EVENTFD"] == "yes")
        qtConfig += "eventfd";

    if (dictionary["FONT_CONFIG"] == "yes") {
        qtConfig += "fontconfig";
        qmakeVars += "QMAKE_CFLAGS_FONTCONFIG =";
        qmakeVars += "QMAKE_LIBS_FONTCONFIG   = -lfreetype -lfontconfig";
    }

    if (dictionary["QT_GLIB"] == "yes")
        qtConfig += "glib";

    if (dictionary["STACK_PROTECTOR_STRONG"] == "yes")
        qtConfig += "stack-protector-strong";

    if (dictionary["REDUCE_EXPORTS"] == "yes")
        qtConfig += "reduce_exports";

    if (!dictionary["POLL"].isEmpty())
        qtConfig += "poll_" + dictionary["POLL"];

    // We currently have no switch for QtConcurrent, so add it unconditionally.
    qtConfig += "concurrent";

    if (dictionary[ "SYSTEM_PROXIES" ] == "yes")
        qtConfig += "system-proxies";

    if (dictionary.contains("XQMAKESPEC") && (dictionary["QMAKESPEC"] != dictionary["XQMAKESPEC"])) {
            qmakeConfig += "cross_compile";
            dictionary["CROSS_COMPILE"] = "yes";
    }

    // Directories and settings for .qmake.cache --------------------

    if (dictionary.contains("XQMAKESPEC") && dictionary[ "XQMAKESPEC" ].startsWith("linux"))
        qtConfig += "rpath";

    if (!qmakeDefines.isEmpty())
        qmakeVars += QString("DEFINES        += ") + qmakeDefines.join(' ');
    if (!qmakeIncludes.isEmpty())
        qmakeVars += QString("INCLUDEPATH    += ") + formatPaths(qmakeIncludes);
    if (!opensslLibs.isEmpty())
        qmakeVars += opensslLibs;
    if (dictionary[ "OPENSSL" ] == "linked") {
        if (!opensslLibsDebug.isEmpty() || !opensslLibsRelease.isEmpty()) {
            if (opensslLibsDebug.isEmpty() || opensslLibsRelease.isEmpty()) {
                cout << "Error: either both or none of OPENSSL_LIBS_DEBUG/_RELEASE must be defined." << endl;
                exit(1);
            }
            qmakeVars += opensslLibsDebug;
            qmakeVars += opensslLibsRelease;
        } else if (opensslLibs.isEmpty()) {
            qmakeVars += QString("OPENSSL_LIBS    = -lssleay32 -llibeay32");
        }
        if (!opensslPath.isEmpty()) {
            qmakeVars += QString("OPENSSL_CFLAGS += -I%1/include").arg(opensslPath);
            qmakeVars += QString("OPENSSL_LIBS += -L%1/lib").arg(opensslPath);
        }
    }
    if (dictionary[ "DBUS" ] == "linked") {
       if (!dbusPath.isEmpty()) {
           qmakeVars += QString("QT_CFLAGS_DBUS = -I%1/include").arg(dbusPath);
           qmakeVars += QString("QT_LIBS_DBUS = -L%1/lib").arg(dbusPath);
           if (dbusHostPath.isEmpty())
               qmakeVars += QString("QT_HOST_CFLAGS_DBUS = -I%1/include").arg(dbusPath);
       }
       if (!dbusHostPath.isEmpty())
           qmakeVars += QString("QT_HOST_CFLAGS_DBUS = -I%1/include").arg(dbusHostPath);
    }
    if (dictionary[ "SQL_MYSQL" ] != "no" && !mysqlPath.isEmpty()) {
        qmakeVars += QString("QT_CFLAGS_MYSQL = -I%1/include").arg(mysqlPath);
        qmakeVars += QString("QT_LFLAGS_MYSQL = -L%1/lib").arg(mysqlPath);
    }
    if (!psqlLibs.isEmpty())
        qmakeVars += QString("QT_LFLAGS_PSQL=") + psqlLibs.section("=", 1);
    if (!zlibLibs.isEmpty())
        qmakeVars += zlibLibs;

    {
        QStringList lflagsTDS;
        if (!sybase.isEmpty())
            lflagsTDS += QString("-L") + formatPath(sybase.section("=", 1) + "/lib");
        if (!sybaseLibs.isEmpty())
            lflagsTDS += sybaseLibs.section("=", 1);
        if (!lflagsTDS.isEmpty())
            qmakeVars += QString("QT_LFLAGS_TDS=") + lflagsTDS.join(' ');
    }

    if (!qmakeSql.isEmpty())
        qmakeVars += QString("sql-drivers    += ") + qmakeSql.join(' ');
    if (!qmakeSqlPlugins.isEmpty())
        qmakeVars += QString("sql-plugins    += ") + qmakeSqlPlugins.join(' ');
    if (!qmakeStyles.isEmpty())
        qmakeVars += QString("styles         += ") + qmakeStyles.join(' ');
    if (!qmakeStylePlugins.isEmpty())
        qmakeVars += QString("style-plugins  += ") + qmakeStylePlugins.join(' ');

    if (!dictionary[ "QMAKESPEC" ].length()) {
        cout << "Configure could not detect your compiler. QMAKESPEC must either" << endl
             << "be defined as an environment variable, or specified as an" << endl
             << "argument with -platform" << endl;

        QStringList winPlatforms;
        QDir mkspecsDir(sourcePath + "/mkspecs");
        const QFileInfoList &specsList = mkspecsDir.entryInfoList();
        for (int i = 0; i < specsList.size(); ++i) {
            const QFileInfo &fi = specsList.at(i);
            if (fi.fileName().left(5) == "win32") {
                winPlatforms += fi.fileName();
            }
        }
        cout << "Available platforms are: " << qPrintable(winPlatforms.join(", ")) << endl;
        dictionary[ "DONE" ] = "error";
    }
}

void Configure::generateCachefile()
{
    // Generate qmodule.pri, which is loaded only by Qt modules
    {
        FileWriter moduleStream(buildPath + "/mkspecs/qmodule.pri");

        moduleStream << "QT_BUILD_PARTS += " << buildParts.join(' ') << endl;
        if (!skipModules.isEmpty())
            moduleStream << "QT_SKIP_MODULES += " << skipModules.join(' ') << endl;
        QString qcpath = dictionary["QCONFIG_PATH"];
        QString qlpath = sourcePath + "/src/corelib/global/";
        if (qcpath.startsWith(qlpath))
            qcpath.remove(0, qlpath.length());
        moduleStream << "QT_QCONFIG_PATH = " << qcpath << endl;
        moduleStream << endl;

        moduleStream << "host_build {" << endl;
        moduleStream << "    QT_CPU_FEATURES." << dictionary["QT_HOST_ARCH"] <<
                                    " = " << dictionary["QT_HOST_CPU_FEATURES"] << endl;
        moduleStream << "} else {" << endl;
        moduleStream << "    QT_CPU_FEATURES." << dictionary["QT_ARCH"] <<
                                    " = " << dictionary["QT_CPU_FEATURES"] << endl;
        moduleStream << "}" << endl;
        moduleStream << "QT_COORD_TYPE += " << dictionary["QREAL"] << endl;

        if (dictionary["QT_XKBCOMMON"] == "no")
            moduleStream << "DEFINES += QT_NO_XKBCOMMON" << endl;

        // embedded
        if (!dictionary["KBD_DRIVERS"].isEmpty())
            moduleStream << "kbd-drivers += "<< dictionary["KBD_DRIVERS"]<<endl;
        if (!dictionary["GFX_DRIVERS"].isEmpty())
            moduleStream << "gfx-drivers += "<< dictionary["GFX_DRIVERS"]<<endl;
        if (!dictionary["MOUSE_DRIVERS"].isEmpty())
            moduleStream << "mouse-drivers += "<< dictionary["MOUSE_DRIVERS"]<<endl;
        if (!dictionary["DECORATIONS"].isEmpty())
            moduleStream << "decorations += "<<dictionary["DECORATIONS"]<<endl;

        moduleStream << "CONFIG += " << qmakeConfig.join(' ');
        if (dictionary[ "SSE2" ] == "yes")
            moduleStream << " sse2";
        if (dictionary[ "SSE3" ] == "yes")
            moduleStream << " sse3";
        if (dictionary[ "SSSE3" ] == "yes")
            moduleStream << " ssse3";
        if (dictionary[ "SSE4_1" ] == "yes")
            moduleStream << " sse4_1";
        if (dictionary[ "SSE4_2" ] == "yes")
            moduleStream << " sse4_2";
        if (dictionary[ "AVX" ] == "yes")
            moduleStream << " avx";
        if (dictionary[ "AVX2" ] == "yes")
            moduleStream << " avx2";
        if (!dictionary[ "AVX512" ].isEmpty())
            moduleStream << ' ' << dictionary[ "AVX512" ];
        if (dictionary[ "NEON" ] == "yes")
            moduleStream << " neon";
        if (dictionary[ "LARGE_FILE" ] == "yes")
            moduleStream << " largefile";
        if (dictionary[ "STRIP" ] == "no")
            moduleStream << " nostrip";
        if (dictionary[ "LTCG" ] == "yes")
            moduleStream << " ltcg";
        moduleStream << endl;

        for (QStringList::Iterator var = qmakeVars.begin(); var != qmakeVars.end(); ++var)
            moduleStream << (*var) << endl;

        if (!moduleStream.flush())
            dictionary[ "DONE" ] = "error";
    }
}

void Configure::addSysroot(QString *command)
{
    const QString &sysroot = dictionary["CFG_SYSROOT"];
    if (!sysroot.isEmpty() && dictionary["CFG_GCC_SYSROOT"] == "yes") {
        command->append(" QMAKE_LFLAGS+=--sysroot=" + sysroot);
        command->append(" QMAKE_CXXFLAGS+=--sysroot=" + sysroot);
    }
}

struct ArchData {
    bool isHost;
    const char *qmakespec;
    const char *key;
    const char *subarchKey;
    const char *type;
    ArchData() {}
    ArchData(bool h, const char *t, const char *qm, const char *k, const char *sak)
        : isHost(h), qmakespec(qm), key(k), subarchKey(sak), type(t)
    {}
};

/*
    Runs qmake on config.tests/arch/arch.pro, which will detect the target arch
    for the compiler we are using
*/
void Configure::detectArch()
{
    QString oldpwd = QDir::currentPath();

    QString newpwd = QString("%1/config.tests/arch").arg(buildPath);
    if (!QDir().exists(newpwd) && !QDir().mkpath(newpwd)) {
        cout << "Failed to create directory " << qPrintable(QDir::toNativeSeparators(newpwd)) << endl;
        dictionary["DONE"] = "error";
        return;
    }
    if (!QDir::setCurrent(newpwd)) {
        cout << "Failed to change working directory to " << qPrintable(QDir::toNativeSeparators(newpwd)) << endl;
        dictionary["DONE"] = "error";
        return;
    }

    QVector<ArchData> qmakespecs;
    if (dictionary.contains("XQMAKESPEC"))
        qmakespecs << ArchData(false, "target", "XQMAKESPEC", "QT_ARCH", "QT_CPU_FEATURES");
    qmakespecs << ArchData(true, "host", "QMAKESPEC", "QT_HOST_ARCH", "QT_HOST_CPU_FEATURES");

    for (int i = 0; i < qmakespecs.count(); ++i) {
        const ArchData &data = qmakespecs.at(i);
        QString qmakespec = dictionary.value(data.qmakespec);
        QString key = data.key;
        QString subarchKey = data.subarchKey;

        // run qmake
        QString command = QString("%1 -spec %2 %3")
            .arg(QDir::toNativeSeparators(QDir(newpwd).relativeFilePath(buildPath + "/bin/qmake.exe")),
                 QDir::toNativeSeparators(qmakespec),
                 QDir::toNativeSeparators(sourcePath + "/config.tests/arch/arch"
                                          + (data.isHost ? "_host" : "") + ".pro"));

        if (!data.isHost) {
            if (qmakespec.startsWith("winrt") || qmakespec.startsWith("winphone"))
                command.append(" QMAKE_LFLAGS+=/ENTRY:main");
            addSysroot(&command);
        }

        int returnValue = 0;
        Environment::execute(command, &returnValue);
        if (returnValue != 0) {
            cout << "QMake failed!" << endl;
            dictionary["DONE"] = "error";
            return;
        }

        // compile
        command = dictionary[ "MAKE" ];
        if (command.contains("nmake") || command.contains("jom"))
            command += " /NOLOGO";
        command += " -s";
        Environment::execute(command);

        // find the executable that was generated
        QString arch_exe;
        if (qmakespec.startsWith("android")) {
            arch_exe = "libarch.so";
        } else {
            arch_exe = "arch.exe";
        }
        QFile exe(arch_exe);
        if (!exe.open(QFile::ReadOnly)) { // no Text, this is binary
            exe.setFileName("arch");
            if (!exe.open(QFile::ReadOnly)) {
                cout << "Could not find output file '" << qPrintable(arch_exe) << "' or 'arch' in " << qPrintable(newpwd) << " : " << qPrintable(exe.errorString()) << endl;
                dictionary["DONE"] = "error";
                return;
            }
        }
        QByteArray exeContents = exe.readAll();
        exe.close();

        static const char archMagic[] = "==Qt=magic=Qt== Architecture:";
        int magicPos = exeContents.indexOf(archMagic);
        if (magicPos == -1) {
            cout << "Internal error, could not find the architecture of the "
                 << data.type << " executable" << endl;
            dictionary["DONE"] = "error";
            return;
        }
        //cout << "Found magic at offset 0x" << hex << magicPos << endl;

        // the conversion from QByteArray will stop at the ending NUL anyway
        QString arch = QString::fromLatin1(exeContents.constData() + magicPos
                                           + sizeof(archMagic) - 1);
        dictionary[key] = arch;

        static const char subarchMagic[] = "==Qt=magic=Qt== Sub-architecture:";
        magicPos = exeContents.indexOf(subarchMagic);
        if (magicPos == -1) {
            cout << "Internal error, could not find the sub-architecture of the "
                 << data.type << " executable" << endl;
            dictionary["DONE"] = "error";
            return;
        }

        QString subarch = QString::fromLatin1(exeContents.constData() + magicPos
                                              + sizeof(subarchMagic) - 1);
        dictionary[subarchKey] = subarch;

        //cout << "Detected arch '" << qPrintable(arch) << "'\n";
        //cout << "Detected sub-arch '" << qPrintable(subarch) << "'\n";

        // clean up
        Environment::execute(command + " distclean");
    }

    if (!dictionary.contains("QT_HOST_ARCH"))
        dictionary["QT_HOST_ARCH"] = "unknown";
    if (!dictionary.contains("QT_ARCH")) {
        dictionary["QT_ARCH"] = dictionary["QT_HOST_ARCH"];
        dictionary["QT_CPU_FEATURES"] = dictionary["QT_HOST_CPU_FEATURES"];
    }

    QDir::setCurrent(oldpwd);
}

bool Configure::tryCompileProject(const QString &projectPath, const QString &extraOptions,
                                  bool distClean)
{
    QString oldpwd = QDir::currentPath();

    QString newpwd = QString("%1/config.tests/%2").arg(buildPath, projectPath);
    if (!QDir().exists(newpwd) && !QDir().mkpath(newpwd)) {
        cout << "Failed to create directory " << qPrintable(QDir::toNativeSeparators(newpwd)) << endl;
        dictionary["DONE"] = "error";
        return false;
    }
    if (!QDir::setCurrent(newpwd)) {
        cout << "Failed to change working directory to " << qPrintable(QDir::toNativeSeparators(newpwd)) << endl;
        dictionary["DONE"] = "error";
        return false;
    }

    // run qmake
    QString command = QString("%1 %2 %3")
        .arg(QDir::toNativeSeparators(QDir(newpwd).relativeFilePath(buildPath + "/bin/qmake.exe")),
             QDir::toNativeSeparators(sourcePath + "/config.tests/" + projectPath),
             extraOptions);

    if (dictionary.contains("XQMAKESPEC")) {
        const QString qmakespec = dictionary["XQMAKESPEC"];
        if (qmakespec.startsWith("winrt") || qmakespec.startsWith("winphone"))
            command.append(" QMAKE_LFLAGS+=/ENTRY:main");
        addSysroot(&command);
    }

    if (verbose)
        cout << qPrintable(command) << endl;
    else
        command += " 2>&1";

    int code = 0;
    QString output = Environment::execute(command, &code);
    //cout << output << endl;

    if (code == 0) {
        // compile
        command = dictionary[ "MAKE" ];
        if (command.contains("nmake") || command.contains("jom"))
            command += " /NOLOGO";
        if (verbose)
            cout << qPrintable(command) << endl;
        else
            command += " -s 2>&1";
        output = Environment::execute(command, &code);
        //cout << output << endl;

        // clean up
        if (distClean)
            Environment::execute(command + " distclean 2>&1");
    }

    QDir::setCurrent(oldpwd);
    return code == 0;
}

bool Configure::compilerSupportsFlag(const QString &compilerAndArgs)
{
    QFile file("conftest.cpp");
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        cout << "could not open temp file for writing" << endl;
        return false;
    }
    if (!file.write("int main() { return 0; }\r\n")) {
        cout << "could not write to temp file" << endl;
        return false;
    }
    file.close();
    // compilerAndArgs contains compiler because there is no way to query it
    QString command = compilerAndArgs + " -o conftest-out.o conftest.cpp";
    int code = 0;
    QString output = Environment::execute(command, &code);
    file.remove();
    QFile::remove("conftest-out.o");
    return code == 0;
}

void Configure::generateQDevicePri()
{
    FileWriter deviceStream(buildPath + "/mkspecs/qdevice.pri");
    if (dictionary.contains("DEVICE_OPTION")) {
        const QString devoptionlist = dictionary["DEVICE_OPTION"];
        const QStringList optionlist = devoptionlist.split(QStringLiteral("\n"));
        foreach (const QString &entry, optionlist)
            deviceStream << entry << "\n";
    }
    if (dictionary.contains("ANDROID_SDK_ROOT") && dictionary.contains("ANDROID_NDK_ROOT")) {
        deviceStream << "android_install {" << endl;
        deviceStream << "    DEFAULT_ANDROID_SDK_ROOT = " << formatPath(dictionary["ANDROID_SDK_ROOT"]) << endl;
        deviceStream << "    DEFAULT_ANDROID_NDK_ROOT = " << formatPath(dictionary["ANDROID_NDK_ROOT"]) << endl;
        if (QSysInfo::WordSize == 64)
            deviceStream << "    DEFAULT_ANDROID_NDK_HOST = windows-x86_64" << endl;
        else
            deviceStream << "    DEFAULT_ANDROID_NDK_HOST = windows" << endl;
        QString android_arch(dictionary.contains("ANDROID_TARGET_ARCH")
                  ? dictionary["ANDROID_TARGET_ARCH"]
                  : QString("armeabi-v7a"));
        QString android_tc_vers(dictionary.contains("ANDROID_NDK_TOOLCHAIN_VERSION")
                  ? dictionary["ANDROID_NDK_TOOLCHAIN_VERSION"]
                  : QString("4.9"));

        bool targetIs64Bit = android_arch == QString("arm64-v8a")
                             || android_arch == QString("x86_64")
                             || android_arch == QString("mips64");
        QString android_platform(dictionary.contains("ANDROID_PLATFORM")
                                 ? dictionary["ANDROID_PLATFORM"]
                                 : (targetIs64Bit ? QString("android-21") : QString("android-9")));

        deviceStream << "    DEFAULT_ANDROID_PLATFORM = " << android_platform << endl;
        deviceStream << "    DEFAULT_ANDROID_TARGET_ARCH = " << android_arch << endl;
        deviceStream << "    DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION = " << android_tc_vers << endl;
        deviceStream << "}" << endl;
    }
    if (!deviceStream.flush())
        dictionary[ "DONE" ] = "error";
}

void Configure::generateQConfigPri()
{
    // Generate qconfig.pri
    {
        FileWriter configStream(buildPath + "/mkspecs/qconfig.pri");

        configStream << "CONFIG+= ";
        configStream << dictionary[ "BUILD" ];
        configStream << (dictionary[ "SHARED" ] == "no" ? " static" : " shared");

        if (dictionary["STATIC_RUNTIME"] == "yes")
            configStream << " static_runtime";
        if (dictionary[ "RTTI" ] == "yes")
            configStream << " rtti";
        if (dictionary["INCREDIBUILD_XGE"] == "yes")
            configStream << " incredibuild_xge";
        if (dictionary["PLUGIN_MANIFESTS"] == "no")
            configStream << " no_plugin_manifest";
        if (dictionary["CROSS_COMPILE"] == "yes")
            configStream << " cross_compile";

        if (dictionary[ "SLOG2" ] == "yes")
            configStream << " slog2";

        if (dictionary[ "QNX_IMF" ] == "yes")
            configStream << " qqnx_imf";

        if (dictionary[ "PPS" ] == "yes")
            configStream << " qqnx_pps";

        if (dictionary[ "LGMON" ] == "yes")
            configStream << " lgmon";

        if (dictionary["DIRECTWRITE"] == "yes")
            configStream << " directwrite";

        if (dictionary["ANDROID_STYLE_ASSETS"] == "yes")
            configStream << " android-style-assets";

        // ### For compatibility only, should be removed later.
        configStream << " qpa";

        configStream << endl;
        configStream << "host_build {" << endl;
        configStream << "    QT_ARCH = " << dictionary["QT_HOST_ARCH"] << endl;
        configStream << "    QT_TARGET_ARCH = " << dictionary["QT_ARCH"] << endl;
        configStream << "} else {" << endl;
        configStream << "    QT_ARCH = " << dictionary["QT_ARCH"] << endl;
        if (dictionary.contains("XQMAKESPEC")) {
            // FIXME: add detection
            configStream << "    QMAKE_DEFAULT_LIBDIRS = /lib /usr/lib" << endl;
            configStream << "    QMAKE_DEFAULT_INCDIRS = /usr/include /usr/local/include" << endl;
        }
        configStream << "}" << endl;
        configStream << "QT_CONFIG += " << qtConfig.join(' ') << endl;

        configStream << "#versioning " << endl
                     << "QT_VERSION = " << dictionary["VERSION"] << endl
                     << "QT_MAJOR_VERSION = " << dictionary["VERSION_MAJOR"] << endl
                     << "QT_MINOR_VERSION = " << dictionary["VERSION_MINOR"] << endl
                     << "QT_PATCH_VERSION = " << dictionary["VERSION_PATCH"] << endl;

        configStream << endl
                     << "QT_EDITION = " << dictionary["EDITION"] << endl;

        if (dictionary["EDITION"] != "OpenSource" && dictionary["EDITION"] != "Preview") {
            configStream << "QT_LICHECK = " << dictionary["LICHECK"] << endl;
            configStream << "QT_RELEASE_DATE = " << dictionary["RELEASEDATE"] << endl;
        }

        if (!dictionary["CFG_SYSROOT"].isEmpty() && dictionary["CFG_GCC_SYSROOT"] == "yes") {
            configStream << endl
                         << "# sysroot" << endl
                         << "!host_build {" << endl
                         << "    QMAKE_CFLAGS    += --sysroot=$$[QT_SYSROOT]" << endl
                         << "    QMAKE_CXXFLAGS  += --sysroot=$$[QT_SYSROOT]" << endl
                         << "    QMAKE_LFLAGS    += --sysroot=$$[QT_SYSROOT]" << endl
                         << "}" << endl;
        }

        const QString targetOS = dictionary.value("TARGET_OS");
        if (!targetOS.isEmpty())
            configStream << "QMAKE_TARGET_OS = " << targetOS << endl;

        if (!dictionary["QMAKE_RPATHDIR"].isEmpty())
            configStream << "QMAKE_RPATHDIR += " << formatPath(dictionary["QMAKE_RPATHDIR"]) << endl;

        if (!dictionary["QT_LIBINFIX"].isEmpty())
            configStream << "QT_LIBINFIX = " << dictionary["QT_LIBINFIX"] << endl;

        if (!dictionary["QT_NAMESPACE"].isEmpty())
            configStream << "#namespaces" << endl << "QT_NAMESPACE = " << dictionary["QT_NAMESPACE"] << endl;

        if (dictionary[ "SHARED" ] == "no")
            configStream << "QT_DEFAULT_QPA_PLUGIN = q" << qpaPlatformName() << endl;

        if (!dictionary["QT_GCC_MAJOR_VERSION"].isEmpty()) {
            configStream << "QT_GCC_MAJOR_VERSION = " << dictionary["QT_GCC_MAJOR_VERSION"] << endl
                         << "QT_GCC_MINOR_VERSION = " << dictionary["QT_GCC_MINOR_VERSION"] << endl
                         << "QT_GCC_PATCH_VERSION = " << dictionary["QT_GCC_PATCH_VERSION"] << endl;
        }

        if (!configStream.flush())
            dictionary[ "DONE" ] = "error";
    }
}

QString Configure::addDefine(QString def)
{
    QString result, defNeg, defD = def;

    defD.replace(QRegExp("=.*"), "");
    def.replace(QRegExp("="), " ");

    if (def.startsWith("QT_NO_")) {
        defNeg = defD;
        defNeg.replace("QT_NO_", "QT_");
    } else if (def.startsWith("QT_")) {
        defNeg = defD;
        defNeg.replace("QT_", "QT_NO_");
    }

    if (defNeg.isEmpty()) {
        result = "#ifndef $DEFD\n"
                 "# define $DEF\n"
                 "#endif\n\n";
    } else {
        result = "#if defined($DEFD) && defined($DEFNEG)\n"
                 "# undef $DEFD\n"
                 "#elif !defined($DEFD)\n"
                 "# define $DEF\n"
                 "#endif\n\n";
    }
    result.replace("$DEFNEG", defNeg);
    result.replace("$DEFD", defD);
    result.replace("$DEF", def);
    return result;
}

void Configure::generateConfigfiles()
{
    {
        FileWriter tmpStream(buildPath + "/src/corelib/global/qconfig.h");

        tmpStream << "#define QT_VERSION_MAJOR    " << dictionary["VERSION_MAJOR"] << endl
                  << "#define QT_VERSION_MINOR    " << dictionary["VERSION_MINOR"] << endl
                  << "#define QT_VERSION_PATCH    " << dictionary["VERSION_PATCH"] << endl
                  << "#define QT_VERSION_STR      \"" << dictionary["VERSION"] << "\"\n"
                  << endl;

        if (dictionary[ "QCONFIG" ] == "full") {
            tmpStream << "/* Everything */" << endl;
        } else {
            tmpStream << "#ifndef QT_BOOTSTRAPPED" << endl;
            QFile inFile(dictionary["QCONFIG_PATH"]);
            if (inFile.open(QFile::ReadOnly)) {
                tmpStream << QTextStream(&inFile).readAll();
                inFile.close();
            }
            tmpStream << "#endif // QT_BOOTSTRAPPED" << endl;
        }
        tmpStream << endl;

        if (dictionary[ "SHARED" ] == "no") {
            tmpStream << "/* Qt was configured for a static build */" << endl
                      << "#if !defined(QT_SHARED) && !defined(QT_STATIC)" << endl
                      << "# define QT_STATIC" << endl
                      << "#endif" << endl
                      << endl;
        }
        tmpStream << "/* License information */" << endl;
        tmpStream << "#define QT_PRODUCT_LICENSEE \"" << dictionary[ "LICENSEE" ] << "\"" << endl;
        tmpStream << "#define QT_PRODUCT_LICENSE \"" << dictionary[ "EDITION" ] << "\"" << endl;
        tmpStream << endl;
        if (dictionary["BUILDDEV"] == "yes") {
            dictionary["QMAKE_INTERNAL"] = "yes";
            tmpStream << "/* Used for example to export symbols for the certain autotests*/" << endl;
            tmpStream << "#define QT_BUILD_INTERNAL" << endl;
            tmpStream << endl;
        }

        tmpStream << endl << "// Compiler sub-arch support" << endl;
        if (dictionary[ "SSE2" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_SSE2 1" << endl;
        if (dictionary[ "SSE3" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_SSE3 1" << endl;
        if (dictionary[ "SSSE3" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_SSSE3 1" << endl;
        if (dictionary[ "SSE4_1" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_SSE4_1 1" << endl;
        if (dictionary[ "SSE4_2" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_SSE4_2 1" << endl;
        if (dictionary[ "AVX" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_AVX 1" << endl;
        if (dictionary[ "AVX2" ] == "yes")
            tmpStream << "#define QT_COMPILER_SUPPORTS_AVX2 1" << endl;
        foreach (const QString &avx512feature, dictionary[ "AVX512" ].split(' ', QString::SkipEmptyParts))
            tmpStream << "#define QT_COMPILER_SUPPRTS_" << avx512feature.toUpper() << " 1" << endl;

        if (dictionary["QREAL"] != "double") {
            tmpStream << "#define QT_COORD_TYPE " << dictionary["QREAL"] << endl;
            tmpStream << "#define QT_COORD_TYPE_STRING " << dictionary["QREAL_STRING"] << endl;
        }

        tmpStream << endl << "// Compile time features" << endl;

        QStringList qconfigList;
        if (dictionary["STYLE_WINDOWS"] != "yes")     qconfigList += "QT_NO_STYLE_WINDOWS";
        if (dictionary["STYLE_FUSION"] != "yes")       qconfigList += "QT_NO_STYLE_FUSION";
        if (dictionary["STYLE_WINDOWSXP"] != "yes" && dictionary["STYLE_WINDOWSVISTA"] != "yes")
            qconfigList += "QT_NO_STYLE_WINDOWSXP";
        if (dictionary["STYLE_WINDOWSVISTA"] != "yes")   qconfigList += "QT_NO_STYLE_WINDOWSVISTA";

        if (dictionary["GIF"] == "yes")              qconfigList += "QT_BUILTIN_GIF_READER=1";
        if (dictionary["PNG"] != "yes")              qconfigList += "QT_NO_IMAGEFORMAT_PNG";
        if (dictionary["JPEG"] != "yes")             qconfigList += "QT_NO_IMAGEFORMAT_JPEG";
        if (dictionary["ZLIB"] == "no") {
            qconfigList += "QT_NO_ZLIB";
            qconfigList += "QT_NO_COMPRESS";
        }

        if (dictionary["ACCESSIBILITY"] == "no")     qconfigList += "QT_NO_ACCESSIBILITY";
        if (dictionary["WIDGETS"] == "no")           qconfigList += "QT_NO_WIDGETS";
        if (dictionary["GUI"] == "no")               qconfigList += "QT_NO_GUI";
        if (dictionary["OPENGL"] == "no")            qconfigList += "QT_NO_OPENGL";
        if (dictionary["OPENVG"] == "no")            qconfigList += "QT_NO_OPENVG";
        if (dictionary["SSL"] == "no")               qconfigList += "QT_NO_SSL";
        if (dictionary["OPENSSL"] == "no")           qconfigList += "QT_NO_OPENSSL";
        if (dictionary["OPENSSL"] == "linked")       qconfigList += "QT_LINKED_OPENSSL";
        if (dictionary["DBUS"] == "no")              qconfigList += "QT_NO_DBUS";
        if (dictionary["FREETYPE"] == "no")          qconfigList += "QT_NO_FREETYPE";
        if (dictionary["HARFBUZZ"] == "no")          qconfigList += "QT_NO_HARFBUZZ";
        if (dictionary["NATIVE_GESTURES"] == "no")   qconfigList += "QT_NO_NATIVE_GESTURES";

        if (dictionary["OPENGL_ES_2"]  == "yes")     qconfigList += "QT_OPENGL_ES";
        if (dictionary["OPENGL_ES_2"]  == "yes")     qconfigList += "QT_OPENGL_ES_2";
        if (dictionary["DYNAMICGL"] == "yes")        qconfigList += "QT_OPENGL_DYNAMIC";
        if (dictionary["SQL_MYSQL"] == "yes")        qconfigList += "QT_SQL_MYSQL";
        if (dictionary["SQL_ODBC"] == "yes")         qconfigList += "QT_SQL_ODBC";
        if (dictionary["SQL_OCI"] == "yes")          qconfigList += "QT_SQL_OCI";
        if (dictionary["SQL_PSQL"] == "yes")         qconfigList += "QT_SQL_PSQL";
        if (dictionary["SQL_TDS"] == "yes")          qconfigList += "QT_SQL_TDS";
        if (dictionary["SQL_DB2"] == "yes")          qconfigList += "QT_SQL_DB2";
        if (dictionary["SQL_SQLITE"] == "yes")       qconfigList += "QT_SQL_SQLITE";
        if (dictionary["SQL_SQLITE2"] == "yes")      qconfigList += "QT_SQL_SQLITE2";
        if (dictionary["SQL_IBASE"] == "yes")        qconfigList += "QT_SQL_IBASE";

        if (dictionary["POSIX_IPC"] == "yes")
            qconfigList += "QT_POSIX_IPC";
        else if ((platform() != ANDROID) && (platform() != WINDOWS) && (platform() != WINDOWS_RT))
            qconfigList << "QT_NO_SYSTEMSEMAPHORE" << "QT_NO_SHAREDMEMORY";

        if (dictionary["FONT_CONFIG"] == "no")       qconfigList += "QT_NO_FONTCONFIG";

        if (dictionary["NIS"] == "yes")
            qconfigList += "QT_NIS";
        else
            qconfigList += "QT_NO_NIS";

        if (dictionary["LARGE_FILE"] == "yes")       qconfigList += "QT_LARGEFILE_SUPPORT=64";
        if (dictionary["QT_CUPS"] == "no")           qconfigList += "QT_NO_CUPS";
        if (dictionary["QT_ICONV"] == "no")          qconfigList += "QT_NO_ICONV";
        if (dictionary["QT_EVDEV"] == "no")          qconfigList += "QT_NO_EVDEV";
        if (dictionary["QT_MTDEV"] == "no")          qconfigList += "QT_NO_MTDEV";
        if (dictionary["QT_TSLIB"] == "no")          qconfigList += "QT_NO_TSLIB";
        if (dictionary["QT_GLIB"] == "no")           qconfigList += "QT_NO_GLIB";
        if (dictionary["QT_INOTIFY"] == "no")        qconfigList += "QT_NO_INOTIFY";
        if (dictionary["QT_EVENTFD"] ==  "no")       qconfigList += "QT_NO_EVENTFD";
        if (dictionary["ATOMIC64"] == "no")          qconfigList += "QT_NO_STD_ATOMIC64";

        if (dictionary["REDUCE_EXPORTS"] == "yes")     qconfigList += "QT_VISIBILITY_AVAILABLE";
        if (dictionary["REDUCE_RELOCATIONS"] == "yes") qconfigList += "QT_REDUCE_RELOCATIONS";
        if (dictionary["QT_GETIFADDRS"] == "no")       qconfigList += "QT_NO_GETIFADDRS";

        qconfigList.sort();
        for (int i = 0; i < qconfigList.count(); ++i)
            tmpStream << addDefine(qconfigList.at(i));

        tmpStream<<"#define QT_QPA_DEFAULT_PLATFORM_NAME \"" << qpaPlatformName() << "\""<<endl;

        if (!tmpStream.flush())
            dictionary[ "DONE" ] = "error";
    }

}

QString Configure::formatConfigPath(const char *var)
{
    QString val = dictionary[var];
    if (QFileInfo(val).isRelative()) {
        QString pfx = dictionary["QT_INSTALL_PREFIX"];
        val = (val == ".") ? pfx : QDir(pfx).absoluteFilePath(val);
    }
    return QDir::toNativeSeparators(val);
}

void Configure::displayConfig()
{
    fstream sout;
    sout.open(QString(buildPath + "/config.summary").toLocal8Bit().constData(),
              ios::in | ios::out | ios::trunc);

    // Give some feedback
    sout << "Environment:" << endl;
    QString env = QString::fromLocal8Bit(getenv("INCLUDE")).replace(QRegExp("[;,]"), "\n      ");
    if (env.isEmpty())
        env = "Unset";
    sout << "    INCLUDE=\n      " << env << endl;
    env = QString::fromLocal8Bit(getenv("LIB")).replace(QRegExp("[;,]"), "\n      ");
    if (env.isEmpty())
        env = "Unset";
    sout << "    LIB=\n      " << env << endl;
    env = QString::fromLocal8Bit(getenv("PATH")).replace(QRegExp("[;,]"), "\n      ");
    if (env.isEmpty())
        env = "Unset";
    sout << "    PATH=\n      " << env << endl;

    if (dictionary[QStringLiteral("EDITION")] != QLatin1String("OpenSource")) {
        QString l1 = dictionary[ "LICENSEE" ];
        QString l2 = dictionary[ "LICENSEID" ];
        QString l3 = dictionary["EDITION"] + ' ' + "Edition";
        QString l4 = dictionary[ "EXPIRYDATE" ];
        sout << "Licensee...................." << (l1.isNull() ? "" : l1) << endl;
        sout << "License ID.................." << (l2.isNull() ? "" : l2) << endl;
        sout << "Product license............." << (l3.isNull() ? "" : l3) << endl;
        sout << "Expiry Date................." << (l4.isNull() ? "" : l4) << endl;
        sout << endl;
    }

    sout << "Configuration:" << endl;
    sout << "    " << qmakeConfig.join("\n    ") << endl;
    sout << "Qt Configuration:" << endl;
    sout << "    " << qtConfig.join("\n    ") << endl;
    sout << endl;

    if (dictionary.contains("XQMAKESPEC"))
        sout << "QMAKESPEC..................." << dictionary[ "XQMAKESPEC" ] << " (" << dictionary["QMAKESPEC_FROM"] << ")" << endl;
    else
        sout << "QMAKESPEC..................." << dictionary[ "QMAKESPEC" ] << " (" << dictionary["QMAKESPEC_FROM"] << ")" << endl;
    if (!dictionary["TARGET_OS"].isEmpty())
        sout << "Target OS..................." << dictionary["TARGET_OS"] << endl;
    sout << "Architecture................" << dictionary["QT_ARCH"]
         << ", features:" << dictionary["QT_CPU_FEATURES"] << endl;
    sout << "Host Architecture..........." << dictionary["QT_HOST_ARCH"]
         << ", features:" << dictionary["QT_HOST_CPU_FEATURES"]  << endl;
    sout << "Maketool...................." << dictionary[ "MAKE" ] << endl;
    if (dictionary[ "BUILDALL" ] == "yes") {
        sout << "Debug build................." << "yes (combined)" << endl;
        sout << "Default build..............." << dictionary[ "BUILD" ] << endl;
    } else {
        sout << "Debug......................." << (dictionary[ "BUILD" ] == "debug" ? "yes" : "no") << endl;
    }
    if (dictionary[ "BUILD" ] == "release" || dictionary[ "BUILDALL" ] == "yes")
        sout << "Force debug info............" << dictionary[ "FORCEDEBUGINFO" ] << endl;
    if (dictionary[ "BUILD" ] == "debug")
        sout << "Force optimized tools......." << dictionary[ "RELEASE_TOOLS" ] << endl;
    sout << "C++ language standard......." << dictionary[ "C++STD" ] << endl;
    sout << "Link Time Code Generation..." << dictionary[ "LTCG" ] << endl;
    sout << "Accessibility support......." << dictionary[ "ACCESSIBILITY" ] << endl;
    sout << "RTTI support................" << dictionary[ "RTTI" ] << endl;
    sout << "SSE support................."
         << (dictionary[ "SSE2" ] == "no" ? "<none>" : "SSE2")
         << (dictionary[ "SSE3" ] == "no" ? "" : " SSE3")
         << (dictionary[ "SSSE3" ] == "no" ? "" : " SSSE3")
         << (dictionary[ "SSE4_1" ] == "no" ? "" : " SSE4.1")
         << (dictionary[ "SSE4_2" ] == "no" ? "" : " SSE4.2")
         << endl;
    sout << "AVX support................."
         << (dictionary[ "AVX" ] == "no" ? "<none>" : "AVX")
         << (dictionary[ "AVX2" ] == "no" ? "" : " AVX2")
         << endl;
    sout << "AVX512 support.............."
         << (dictionary[ "AVX512" ].isEmpty() ? QString("<none>") : dictionary[ "AVX512" ].toUpper()) << endl;
    sout << "NEON support................" << dictionary[ "NEON" ] << endl;
    sout << "OpenGL support.............." << dictionary[ "OPENGL" ] << endl;
    sout << "Large File support.........." << dictionary[ "LARGE_FILE" ] << endl;
    sout << "NIS support................." << dictionary[ "NIS" ] << endl;
    sout << "Iconv support..............." << dictionary[ "QT_ICONV" ] << endl;
    sout << "Evdev support..............." << dictionary[ "QT_EVDEV" ] << endl;
    sout << "Mtdev support..............." << dictionary[ "QT_MTDEV" ] << endl;
    sout << "Inotify support............." << dictionary[ "QT_INOTIFY" ] << endl;
    sout << "eventfd(7) support.........." << dictionary[ "QT_EVENTFD" ] << endl;
    sout << "Glib support................" << dictionary[ "QT_GLIB" ] << endl;
    sout << "CUPS support................" << dictionary[ "QT_CUPS" ] << endl;
    sout << "OpenVG support.............." << dictionary[ "OPENVG" ] << endl;
    sout << "SSL support................." << dictionary[ "SSL" ] << endl;
    sout << "OpenSSL support............." << dictionary[ "OPENSSL" ] << endl;
    sout << "libproxy support............" << dictionary[ "LIBPROXY" ] << endl;
    sout << "Qt D-Bus support............" << dictionary[ "DBUS" ] << endl;
    sout << "Qt Widgets module support..." << dictionary[ "WIDGETS" ] << endl;
    sout << "Qt GUI module support......." << dictionary[ "GUI" ] << endl;
    sout << "QML debugging..............." << dictionary[ "QML_DEBUG" ] << endl;
    sout << "DirectWrite support........." << dictionary[ "DIRECTWRITE" ] << endl;
    sout << "Use system proxies.........." << dictionary[ "SYSTEM_PROXIES" ] << endl;
    sout << endl;

    sout << "QPA Backends:" << endl;
    sout << "    GDI....................." << "yes" << endl;
    sout << "    Direct2D................" << dictionary[ "DIRECT2D" ] << endl;
    sout << endl;

    sout << "Third Party Libraries:" << endl;
    sout << "    ZLIB support............" << dictionary[ "ZLIB" ] << endl;
    sout << "    GIF support............." << dictionary[ "GIF" ] << endl;
    sout << "    JPEG support............" << dictionary[ "JPEG" ] << endl;
    sout << "    PNG support............." << dictionary[ "PNG" ] << endl;
    sout << "    DoubleConversion........" << dictionary[ "DOUBLECONVERSION" ] << endl;
    sout << "    FreeType support........" << dictionary[ "FREETYPE" ] << endl;
    sout << "    Fontconfig support......" << dictionary[ "FONT_CONFIG" ] << endl;
    sout << "    HarfBuzz support........" << dictionary[ "HARFBUZZ" ] << endl;
    sout << "    PCRE support............" << dictionary[ "PCRE" ] << endl;
    sout << "    ICU support............." << dictionary[ "ICU" ] << endl;
    if (platform() == QNX) {
        sout << "    SLOG2 support..........." << dictionary[ "SLOG2" ] << endl;
        sout << "    IMF support............." << dictionary[ "QNX_IMF" ] << endl;
        sout << "    PPS support............." << dictionary[ "PPS" ] << endl;
        sout << "    LGMON support..........." << dictionary[ "LGMON" ] << endl;
    }
    sout << "    ANGLE..................." << dictionary[ "ANGLE" ] << endl;
    sout << "    Dynamic OpenGL.........." << dictionary[ "DYNAMICGL" ] << endl;
    sout << endl;

    sout << "Styles:" << endl;
    sout << "    Windows................." << dictionary[ "STYLE_WINDOWS" ] << endl;
    sout << "    Windows XP.............." << dictionary[ "STYLE_WINDOWSXP" ] << endl;
    sout << "    Windows Vista..........." << dictionary[ "STYLE_WINDOWSVISTA" ] << endl;
    sout << "    Fusion.................." << dictionary[ "STYLE_FUSION" ] << endl;
    sout << endl;

    sout << "Sql Drivers:" << endl;
    sout << "    ODBC...................." << dictionary[ "SQL_ODBC" ] << endl;
    sout << "    MySQL..................." << dictionary[ "SQL_MYSQL" ] << endl;
    sout << "    OCI....................." << dictionary[ "SQL_OCI" ] << endl;
    sout << "    PostgreSQL.............." << dictionary[ "SQL_PSQL" ] << endl;
    sout << "    TDS....................." << dictionary[ "SQL_TDS" ] << endl;
    sout << "    DB2....................." << dictionary[ "SQL_DB2" ] << endl;
    sout << "    SQLite.................." << dictionary[ "SQL_SQLITE" ] << " (" << dictionary[ "SQL_SQLITE_LIB" ] << ")" << endl;
    sout << "    SQLite2................." << dictionary[ "SQL_SQLITE2" ] << endl;
    sout << "    InterBase..............." << dictionary[ "SQL_IBASE" ] << endl;
    sout << endl;

    sout << "Sources are in.............." << QDir::toNativeSeparators(sourcePath) << endl;
    sout << "Build is done in............" << QDir::toNativeSeparators(buildPath) << endl;
    sout << "Install prefix.............." << QDir::toNativeSeparators(dictionary["QT_INSTALL_PREFIX"]) << endl;
    sout << "Headers installed to........" << formatConfigPath("QT_REL_INSTALL_HEADERS") << endl;
    sout << "Libraries installed to......" << formatConfigPath("QT_REL_INSTALL_LIBS") << endl;
    sout << "Arch-dep. data to..........." << formatConfigPath("QT_REL_INSTALL_ARCHDATA") << endl;
    sout << "Plugins installed to........" << formatConfigPath("QT_REL_INSTALL_PLUGINS") << endl;
    sout << "Library execs installed to.." << formatConfigPath("QT_REL_INSTALL_LIBEXECS") << endl;
    sout << "QML1 imports installed to..." << formatConfigPath("QT_REL_INSTALL_IMPORTS") << endl;
    sout << "QML2 imports installed to..." << formatConfigPath("QT_REL_INSTALL_QML") << endl;
    sout << "Binaries installed to......." << formatConfigPath("QT_REL_INSTALL_BINS") << endl;
    sout << "Arch-indep. data to........." << formatConfigPath("QT_REL_INSTALL_DATA") << endl;
    sout << "Docs installed to..........." << formatConfigPath("QT_REL_INSTALL_DOCS") << endl;
    sout << "Translations installed to..." << formatConfigPath("QT_REL_INSTALL_TRANSLATIONS") << endl;
    sout << "Examples installed to......." << formatConfigPath("QT_REL_INSTALL_EXAMPLES") << endl;
    sout << "Tests installed to.........." << formatConfigPath("QT_REL_INSTALL_TESTS") << endl;

    if (checkAvailability("INCREDIBUILD_XGE"))
        sout << "Using IncrediBuild XGE......" << dictionary["INCREDIBUILD_XGE"] << endl;
    if (!qmakeDefines.isEmpty()) {
        sout << "Defines.....................";
        for (QStringList::Iterator defs = qmakeDefines.begin(); defs != qmakeDefines.end(); ++defs)
            sout << (*defs) << " ";
        sout << endl;
    }
    if (!qmakeIncludes.isEmpty()) {
        sout << "Include paths...............";
        for (QStringList::Iterator incs = qmakeIncludes.begin(); incs != qmakeIncludes.end(); ++incs)
            sout << (*incs) << " ";
        sout << endl;
    }
    if (!qmakeLibs.isEmpty()) {
        sout << "Additional libraries........";
        for (QStringList::Iterator libs = qmakeLibs.begin(); libs != qmakeLibs.end(); ++libs)
            sout << (*libs) << " ";
        sout << endl;
    }
    if (dictionary[ "QMAKE_INTERNAL" ] == "yes") {
        sout << "Using internal configuration." << endl;
    }
    if (dictionary[ "SHARED" ] == "no") {
        sout << "WARNING: Using static linking will disable the use of plugins." << endl;
        sout << "         Make sure you compile ALL needed modules into the library." << endl;
    }
    if (dictionary[ "OPENSSL" ] == "linked") {
        if (!opensslLibsDebug.isEmpty() || !opensslLibsRelease.isEmpty()) {
            sout << "Using OpenSSL libraries:" << endl;
            sout << "   debug  : " << opensslLibsDebug << endl;
            sout << "   release: " << opensslLibsRelease << endl;
            sout << "   both   : " << opensslLibs << endl;
        } else if (opensslLibs.isEmpty()) {
            sout << "NOTE: When linking against OpenSSL, you can override the default" << endl;
            sout << "library names through OPENSSL_LIBS and optionally OPENSSL_LIBS_DEBUG/OPENSSL_LIBS_RELEASE" << endl;
            sout << "For example:" << endl;
            sout << "    configure -openssl-linked OPENSSL_LIBS=\"-lssleay32 -llibeay32\"" << endl;
        }
    }
    if (dictionary[ "ZLIB_FORCED" ] == "yes") {
        QString which_zlib = "supplied";
        if (dictionary[ "ZLIB" ] == "system")
            which_zlib = "system";

        sout << "NOTE: The -no-zlib option was supplied but is no longer supported." << endl
             << endl
             << "Qt now requires zlib support in all builds, so the -no-zlib" << endl
             << "option was ignored. Qt will be built using the " << which_zlib
             << "zlib" << endl;
    }
    if (dictionary["OBSOLETE_ARCH_ARG"] == "yes") {
        sout << endl
             << "NOTE: The -arch option is obsolete." << endl
             << endl
             << "Qt now detects the target and host architectures based on compiler" << endl
             << "output. Qt will be built using " << dictionary["QT_ARCH"] << " for the target architecture" << endl
             << "and " << dictionary["QT_HOST_ARCH"] << " for the host architecture (note that these two" << endl
             << "will be the same unless you are cross-compiling)." << endl
             << endl;
    }
    if (dictionary["RELEASE_TOOLS"] == "yes" && dictionary["BUILD"] != "debug" ) {
        sout << endl
             << "NOTE:  -optimized-tools is not useful in -release mode." << endl;
    }
    if (!dictionary["PREFIX_COMPLAINTS"].isEmpty()) {
        sout << endl
             << dictionary["PREFIX_COMPLAINTS"] << endl
             << endl;
    }

    // display config.summary
    sout.seekg(0, ios::beg);
    while (sout.good()) {
        string str;
        getline(sout, str);
        cout << str << endl;
    }
}

void Configure::generateHeaders()
{
    if (dictionary["SYNCQT"] == "auto")
        dictionary["SYNCQT"] = defaultTo("SYNCQT");

    if (dictionary["SYNCQT"] == "yes") {
        if (!QStandardPaths::findExecutable(QStringLiteral("perl.exe")).isEmpty()) {
            cout << "Running syncqt..." << endl;
            QStringList args;
            args << "perl" << "-w";
            args += sourcePath + "/bin/syncqt.pl";
            args << "-version" << dictionary["VERSION"] << "-minimal" << "-module" << "QtCore";
            args += sourcePath;
            int retc = Environment::execute(args, QStringList(), QStringList());
            if (retc) {
                cout << "syncqt failed, return code " << retc << endl << endl;
                dictionary["DONE"] = "error";
            }
        } else {
            cout << "Perl not found in environment - cannot run syncqt." << endl;
            dictionary["DONE"] = "error";
        }
    }
}

void Configure::addConfStr(int group, const QString &val)
{
    confStrOffsets[group] += ' ' + QString::number(confStringOff) + ',';
    confStrings[group] += "    \"" + val + "\\0\"\n";
    confStringOff += val.length() + 1;
}

void Configure::generateQConfigCpp()
{
    QString hostSpec = dictionary["QMAKESPEC"];
    QString targSpec = dictionary.contains("XQMAKESPEC") ? dictionary["XQMAKESPEC"] : hostSpec;

    dictionary["CFG_SYSROOT"] = QDir::cleanPath(dictionary["CFG_SYSROOT"]);

    bool qipempty = false;
    if (dictionary["QT_INSTALL_PREFIX"].isEmpty())
        qipempty = true;
    else
        dictionary["QT_INSTALL_PREFIX"] = QDir::cleanPath(dictionary["QT_INSTALL_PREFIX"]);

    bool sysrootifyPrefix;
    if (dictionary["QT_EXT_PREFIX"].isEmpty()) {
        dictionary["QT_EXT_PREFIX"] = dictionary["QT_INSTALL_PREFIX"];
        sysrootifyPrefix = !dictionary["CFG_SYSROOT"].isEmpty();
    } else {
        dictionary["QT_EXT_PREFIX"] = QDir::cleanPath(dictionary["QT_EXT_PREFIX"]);
        sysrootifyPrefix = false;
    }

    bool haveHpx;
    if (dictionary["QT_HOST_PREFIX"].isEmpty()) {
        dictionary["QT_HOST_PREFIX"] = (sysrootifyPrefix ? dictionary["CFG_SYSROOT"] : QString())
                                       + dictionary["QT_INSTALL_PREFIX"];
        haveHpx = false;
    } else {
        dictionary["QT_HOST_PREFIX"] = QDir::cleanPath(dictionary["QT_HOST_PREFIX"]);
        haveHpx = true;
    }

    static const struct {
        const char *basevar, *baseoption, *var, *option;
    } varmod[] = {
        { "INSTALL_", "-prefix", "DOCS", "-docdir" },
        { "INSTALL_", "-prefix", "HEADERS", "-headerdir" },
        { "INSTALL_", "-prefix", "LIBS", "-libdir" },
        { "INSTALL_", "-prefix", "LIBEXECS", "-libexecdir" },
        { "INSTALL_", "-prefix", "BINS", "-bindir" },
        { "INSTALL_", "-prefix", "PLUGINS", "-plugindir" },
        { "INSTALL_", "-prefix", "IMPORTS", "-importdir" },
        { "INSTALL_", "-prefix", "QML", "-qmldir" },
        { "INSTALL_", "-prefix", "ARCHDATA", "-archdatadir" },
        { "INSTALL_", "-prefix", "DATA", "-datadir" },
        { "INSTALL_", "-prefix", "TRANSLATIONS", "-translationdir" },
        { "INSTALL_", "-prefix", "EXAMPLES", "-examplesdir" },
        { "INSTALL_", "-prefix", "TESTS", "-testsdir" },
        { "INSTALL_", "-prefix", "SETTINGS", "-sysconfdir" },
        { "HOST_", "-hostprefix", "BINS", "-hostbindir" },
        { "HOST_", "-hostprefix", "LIBS", "-hostlibdir" },
        { "HOST_", "-hostprefix", "DATA", "-hostdatadir" },
    };

    bool prefixReminder = false;
    for (uint i = 0; i < sizeof(varmod) / sizeof(varmod[0]); i++) {
        QString path = QDir::cleanPath(
                    dictionary[QLatin1String("QT_") + varmod[i].basevar + varmod[i].var]);
        if (path.isEmpty())
            continue;
        QString base = dictionary[QLatin1String("QT_") + varmod[i].basevar + "PREFIX"];
        if (!path.startsWith(base)) {
            if (i != 13) {
                dictionary["PREFIX_COMPLAINTS"] += QLatin1String("\n        NOTICE: ")
                        + varmod[i].option + " is not a subdirectory of " + varmod[i].baseoption + ".";
                if (i < 13 ? qipempty : !haveHpx)
                    prefixReminder = true;
            }
        } else {
            path.remove(0, base.size());
            if (path.startsWith('/'))
                path.remove(0, 1);
        }
        dictionary[QLatin1String("QT_REL_") + varmod[i].basevar + varmod[i].var]
                = path.isEmpty() ? "." : path;
    }
    if (prefixReminder) {
        dictionary["PREFIX_COMPLAINTS"]
                += "\n        Maybe you forgot to specify -prefix/-hostprefix?";
    }

    if (!qipempty) {
        // If QT_INSTALL_* have not been specified on the command line,
        // default them here, unless prefix is empty (WinCE).

        if (dictionary["QT_REL_INSTALL_HEADERS"].isEmpty())
            dictionary["QT_REL_INSTALL_HEADERS"] = "include";

        if (dictionary["QT_REL_INSTALL_LIBS"].isEmpty())
            dictionary["QT_REL_INSTALL_LIBS"] = "lib";

        if (dictionary["QT_REL_INSTALL_BINS"].isEmpty())
            dictionary["QT_REL_INSTALL_BINS"] = "bin";

        if (dictionary["QT_REL_INSTALL_ARCHDATA"].isEmpty())
            dictionary["QT_REL_INSTALL_ARCHDATA"] = ".";
        if (dictionary["QT_REL_INSTALL_ARCHDATA"] != ".")
            dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] = dictionary["QT_REL_INSTALL_ARCHDATA"] + '/';

        if (dictionary["QT_REL_INSTALL_LIBEXECS"].isEmpty()) {
            if (targSpec.startsWith("win"))
                dictionary["QT_REL_INSTALL_LIBEXECS"] = dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] + "bin";
            else
                dictionary["QT_REL_INSTALL_LIBEXECS"] = dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] + "libexec";
        }

        if (dictionary["QT_REL_INSTALL_PLUGINS"].isEmpty())
            dictionary["QT_REL_INSTALL_PLUGINS"] = dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] + "plugins";

        if (dictionary["QT_REL_INSTALL_IMPORTS"].isEmpty())
            dictionary["QT_REL_INSTALL_IMPORTS"] = dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] + "imports";

        if (dictionary["QT_REL_INSTALL_QML"].isEmpty())
            dictionary["QT_REL_INSTALL_QML"] = dictionary["QT_REL_INSTALL_ARCHDATA_PREFIX"] + "qml";

        if (dictionary["QT_REL_INSTALL_DATA"].isEmpty())
            dictionary["QT_REL_INSTALL_DATA"] = ".";
        if (dictionary["QT_REL_INSTALL_DATA"] != ".")
            dictionary["QT_REL_INSTALL_DATA_PREFIX"] = dictionary["QT_REL_INSTALL_DATA"] + '/';

        if (dictionary["QT_REL_INSTALL_DOCS"].isEmpty())
            dictionary["QT_REL_INSTALL_DOCS"] = dictionary["QT_REL_INSTALL_DATA_PREFIX"] + "doc";

        if (dictionary["QT_REL_INSTALL_TRANSLATIONS"].isEmpty())
            dictionary["QT_REL_INSTALL_TRANSLATIONS"] = dictionary["QT_REL_INSTALL_DATA_PREFIX"] + "translations";

        if (dictionary["QT_REL_INSTALL_EXAMPLES"].isEmpty())
            dictionary["QT_REL_INSTALL_EXAMPLES"] = "examples";

        if (dictionary["QT_REL_INSTALL_TESTS"].isEmpty())
            dictionary["QT_REL_INSTALL_TESTS"] = "tests";
    }

    if (dictionary["QT_REL_HOST_BINS"].isEmpty())
        dictionary["QT_REL_HOST_BINS"] = haveHpx ? "bin" : dictionary["QT_REL_INSTALL_BINS"];

    if (dictionary["QT_REL_HOST_LIBS"].isEmpty())
        dictionary["QT_REL_HOST_LIBS"] = haveHpx ? "lib" : dictionary["QT_REL_INSTALL_LIBS"];

    if (dictionary["QT_REL_HOST_DATA"].isEmpty())
        dictionary["QT_REL_HOST_DATA"] = haveHpx ? "." : dictionary["QT_REL_INSTALL_ARCHDATA"];

    confStringOff = 0;
    addConfStr(0, dictionary["QT_REL_INSTALL_DOCS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_HEADERS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_LIBS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_LIBEXECS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_BINS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_PLUGINS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_IMPORTS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_QML"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_ARCHDATA"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_DATA"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_TRANSLATIONS"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_EXAMPLES"]);
    addConfStr(0, dictionary["QT_REL_INSTALL_TESTS"]);
    addConfStr(1, dictionary["CFG_SYSROOT"]);
    addConfStr(1, dictionary["QT_REL_HOST_BINS"]);
    addConfStr(1, dictionary["QT_REL_HOST_LIBS"]);
    addConfStr(1, dictionary["QT_REL_HOST_DATA"]);
    addConfStr(1, targSpec);
    addConfStr(1, hostSpec);

    // Generate the new qconfig.cpp file
    {
        FileWriter tmpStream(buildPath + "/src/corelib/global/qconfig.cpp");
        tmpStream << "/* Licensed */" << endl
                  << "static const char qt_configure_licensee_str          [512 + 12] = \"qt_lcnsuser=" << dictionary["LICENSEE"] << "\";" << endl
                  << "static const char qt_configure_licensed_products_str [512 + 12] = \"qt_lcnsprod=" << dictionary["EDITION"] << "\";" << endl
                  << endl
                  << "/* Build date */" << endl
                  << "static const char qt_configure_installation          [11  + 12] = \"qt_instdate=2012-12-20\";" << endl
                  << endl
                  << "/* Installation Info */" << endl
                  << "static const char qt_configure_prefix_path_str       [512 + 12] = \"qt_prfxpath=" << dictionary["QT_INSTALL_PREFIX"] << "\";" << endl
                  << "#ifdef QT_BUILD_QMAKE" << endl
                  << "static const char qt_configure_ext_prefix_path_str   [512 + 12] = \"qt_epfxpath=" << dictionary["QT_EXT_PREFIX"] << "\";" << endl
                  << "static const char qt_configure_host_prefix_path_str  [512 + 12] = \"qt_hpfxpath=" << dictionary["QT_HOST_PREFIX"] << "\";" << endl
                  << "#endif" << endl
                  << endl
                  << "static const short qt_configure_str_offsets[] = {\n"
                  << "    " << confStrOffsets[0] << endl
                  << "#ifdef QT_BUILD_QMAKE\n"
                  << "    " << confStrOffsets[1] << endl
                  << "#endif\n"
                  << "};\n"
                  << "static const char qt_configure_strs[] =\n"
                  << confStrings[0] << "#ifdef QT_BUILD_QMAKE\n"
                  << confStrings[1] << "#endif\n"
                  << ";\n"
                  << endl;
        if ((platform() != WINDOWS) && (platform() != WINDOWS_RT))
            tmpStream << "#define QT_CONFIGURE_SETTINGS_PATH \"" << dictionary["QT_REL_INSTALL_SETTINGS"] << "\"" << endl;

        tmpStream << endl
                  << "#ifdef QT_BUILD_QMAKE\n"
                  << "# define QT_CONFIGURE_SYSROOTIFY_PREFIX " << (sysrootifyPrefix ? "true" : "false") << endl
                  << "#endif\n\n"
                  << "/* strlen( \"qt_lcnsxxxx\") == 12 */" << endl
                  << "#define QT_CONFIGURE_LICENSEE qt_configure_licensee_str + 12" << endl
                  << "#define QT_CONFIGURE_LICENSED_PRODUCTS qt_configure_licensed_products_str + 12" << endl
                  << endl
                  << "#define QT_CONFIGURE_PREFIX_PATH qt_configure_prefix_path_str + 12\n"
                  << "#ifdef QT_BUILD_QMAKE\n"
                  << "# define QT_CONFIGURE_EXT_PREFIX_PATH qt_configure_ext_prefix_path_str + 12\n"
                  << "# define QT_CONFIGURE_HOST_PREFIX_PATH qt_configure_host_prefix_path_str + 12\n"
                  << "#endif\n";

        if (!tmpStream.flush())
            dictionary[ "DONE" ] = "error";
    }
}

void Configure::buildQmake()
{
    if (dictionary[ "BUILD_QMAKE" ] == "yes") {
        QStringList args;

        // Build qmake
        QString pwd = QDir::currentPath();
        if (!QDir(buildPath).mkpath("qmake")) {
            cout << "Cannot create qmake build dir." << endl;
            dictionary[ "DONE" ] = "error";
            return;
        }
        if (!QDir::setCurrent(buildPath + "/qmake")) {
            cout << "Cannot enter qmake build dir." << endl;
            dictionary[ "DONE" ] = "error";
            return;
        }

        QString makefile = "Makefile";
        {
            QFile out(makefile);
            if (out.open(QFile::WriteOnly | QFile::Text)) {
                QTextStream stream(&out);
                stream << "#AutoGenerated by configure.exe" << endl
                    << "BUILD_PATH = .." << endl
                    << "SOURCE_PATH = " << QDir::toNativeSeparators(sourcePath) << endl
                    << "INC_PATH = " << QDir::toNativeSeparators(
                           (QFile::exists(sourcePath + "/.git") ? ".." : sourcePath)
                           + "/include") << endl;
                stream << "QT_VERSION = " << dictionary["VERSION"] << endl
                       << "QT_MAJOR_VERSION = " << dictionary["VERSION_MAJOR"] << endl
                       << "QT_MINOR_VERSION = " << dictionary["VERSION_MINOR"] << endl
                       << "QT_PATCH_VERSION = " << dictionary["VERSION_PATCH"] << endl;
                if (dictionary[ "QMAKESPEC" ].startsWith("win32-g++")) {
                    stream << "QMAKESPEC = $(SOURCE_PATH)\\mkspecs\\" << dictionary[ "QMAKESPEC" ] << endl
                           << "EXTRA_CFLAGS = -DUNICODE -ffunction-sections" << endl
                           << "EXTRA_CXXFLAGS = -std=c++11 -DUNICODE -ffunction-sections" << endl
                           << "EXTRA_LFLAGS = -Wl,--gc-sections" << endl
                           << "QTOBJS = qfilesystemengine_win.o \\" << endl
                           << "         qfilesystemiterator_win.o \\" << endl
                           << "         qfsfileengine_win.o \\" << endl
                           << "         qlocale_win.o \\" << endl
                           << "         qsettings_win.o \\" << endl
                           << "         qsystemlibrary.o \\" << endl
                           << "         registry.o" << endl
                           << "QTSRCS=\"$(SOURCE_PATH)/src/corelib/io/qfilesystemengine_win.cpp\" \\" << endl
                           << "       \"$(SOURCE_PATH)/src/corelib/io/qfilesystemiterator_win.cpp\" \\" << endl
                           << "       \"$(SOURCE_PATH)/src/corelib/io/qfsfileengine_win.cpp\" \\" << endl
                           << "       \"$(SOURCE_PATH)/src/corelib/io/qsettings_win.cpp\" \\" << endl
                           << "       \"$(SOURCE_PATH)/src/corelib/tools/qlocale_win.cpp\" \\" << endl\
                           << "       \"$(SOURCE_PATH)/src/corelib/plugin/qsystemlibrary.cpp\" \\" << endl
                           << "       \"$(SOURCE_PATH)/tools/shared/windows/registry.cpp\"" << endl
                           << "EXEEXT=.exe" << endl
                           << "LFLAGS=-static -s -lole32 -luuid -ladvapi32 -lkernel32" << endl;
                    /*
                    ** SHELL is the full path of sh.exe, unless
                    ** 1) it is found in the current directory
                    ** 2) it is not found at all
                    ** 3) it is overridden on the command line with an existing file
                    ** ... otherwise it is always sh.exe. Specifically, SHELL from the
                    ** environment has no effect.
                    **
                    ** This check will fail if SHELL is explicitly set to a not
                    ** sh-compatible shell. This is not a problem, because configure.bat
                    ** will not do that.
                    */
                    stream << "ifeq ($(SHELL), sh.exe)" << endl
                           << "    ifeq ($(wildcard $(CURDIR)/sh.exe), )" << endl
                           << "        SH = 0" << endl
                           << "    else" << endl
                           << "        SH = 1" << endl
                           << "    endif" << endl
                           << "else" << endl
                           << "    SH = 1" << endl
                           << "endif" << endl
                           << "\n"
                           << "ifeq ($(SH), 1)" << endl
                           << "    RM_F = rm -f" << endl
                           << "    RM_RF = rm -rf" << endl
                           << "else" << endl
                           << "    RM_F = del /f" << endl
                           << "    RM_RF = rmdir /s /q" << endl
                           << "endif" << endl;
                    stream << "\n\n";
                } else {
                    stream << "QMAKESPEC = " << dictionary["QMAKESPEC"] << endl;
                }

                stream << "\n\n";

                QFile in(sourcePath + "/qmake/" + dictionary["QMAKEMAKEFILE"]);
                if (in.open(QFile::ReadOnly | QFile::Text)) {
                    QString d = in.readAll();
                    //### need replaces (like configure.sh)? --Sam
                    stream << d << endl;
                }
                stream.flush();
                out.close();
            }
        }

        args += dictionary[ "MAKE" ];
        args += "-f";
        args += makefile;

        cout << "Creating qmake..." << endl;
        int exitCode = Environment::execute(args, QStringList(), QStringList());
        if (exitCode) {
            args.clear();
            args += dictionary[ "MAKE" ];
            args += "-f";
            args += makefile;
            args += "clean";
            exitCode = Environment::execute(args, QStringList(), QStringList());
            if (exitCode) {
                cout << "Cleaning qmake failed, return code " << exitCode << endl << endl;
                dictionary[ "DONE" ] = "error";
            } else {
                args.clear();
                args += dictionary[ "MAKE" ];
                args += "-f";
                args += makefile;
                exitCode = Environment::execute(args, QStringList(), QStringList());
                if (exitCode) {
                    cout << "Building qmake failed, return code " << exitCode << endl << endl;
                    dictionary[ "DONE" ] = "error";
                }
            }
        }
        QDir::setCurrent(pwd);
    }

    // Generate qt.conf
    QFile confFile(buildPath + "/bin/qt.conf");
    if (confFile.open(QFile::WriteOnly | QFile::Text)) { // Truncates any existing file.
        QTextStream confStream(&confFile);
        confStream << "[EffectivePaths]" << endl
                   << "Prefix=.." << endl;
        if (sourcePath != buildPath)
            confStream << "[EffectiveSourcePaths]" << endl
                       << "Prefix=" << sourcePath << endl;

        confStream.flush();
        confFile.close();
    }

}

void Configure::generateMakefiles()
{
        QString pwd = QDir::currentPath();
        {
            QString sourcePathMangled = sourcePath;
            QString buildPathMangled = buildPath;
            if (dictionary.contains("TOPLEVEL")) {
                sourcePathMangled = QFileInfo(sourcePath).path();
                buildPathMangled = QFileInfo(buildPath).path();
            }
            QStringList args;
            args << buildPath + "/bin/qmake" << sourcePathMangled;

            QDir::setCurrent(buildPathMangled);
            if (int exitCode = Environment::execute(args, QStringList(), QStringList())) {
                cout << "Qmake failed, return code " << exitCode  << endl << endl;
                dictionary[ "DONE" ] = "error";
            }
        }
        QDir::setCurrent(pwd);
}

void Configure::showSummary()
{
    QString make = dictionary[ "MAKE" ];
    cout << endl << endl << "Qt is now configured for building. Just run " << qPrintable(make) << "." << endl;
    cout << "To reconfigure, run " << qPrintable(make) << " confclean and configure." << endl << endl;
}

Configure::ProjectType Configure::projectType(const QString& proFileName)
{
    QFile proFile(proFileName);
    if (proFile.open(QFile::ReadOnly)) {
        QString buffer = proFile.readLine(1024);
        while (!buffer.isEmpty()) {
            QStringList segments = buffer.split(QRegExp("\\s"));
            QStringList::Iterator it = segments.begin();

            if (segments.size() >= 3) {
                QString keyword = (*it++);
                QString operation = (*it++);
                QString value = (*it++);

                if (keyword == "TEMPLATE") {
                    if (value == "lib")
                        return Lib;
                    else if (value == "subdirs")
                        return Subdirs;
                }
            }
            // read next line
            buffer = proFile.readLine(1024);
        }
        proFile.close();
    }
    // Default to app handling
    return App;
}

bool Configure::showLicense(QString orgLicenseFile)
{
    if (dictionary["LICENSE_CONFIRMED"] == "yes") {
        cout << "You have already accepted the terms of the license." << endl << endl;
        return true;
    }

    bool showGpl2 = true;
    QString licenseFile = orgLicenseFile;
    QString theLicense;
    if (dictionary["EDITION"] == "OpenSource") {
        if (platform() != WINDOWS_RT
                && (platform() != ANDROID || dictionary["ANDROID_STYLE_ASSETS"] == "no")) {
            theLicense = "GNU Lesser General Public License (LGPL) version 3\n"
                         "or the GNU General Public License (GPL) version 2";
        } else {
            theLicense = "GNU Lesser General Public License (LGPL) version 3";
            showGpl2 = false;
        }
    } else {
        // the first line of the license file tells us which license it is
        QFile file(licenseFile);
        if (!file.open(QFile::ReadOnly)) {
            cout << "Failed to load LICENSE file" << endl;
            return false;
        }
        theLicense = file.readLine().trimmed();
    }

    forever {
        char accept = '?';
        cout << "You are licensed to use this software under the terms of" << endl
             << "the " << theLicense << "." << endl
             << endl;
        if (dictionary["EDITION"] == "OpenSource") {
            cout << "Type 'L' to view the GNU Lesser General Public License version 3 (LGPLv3)." << endl;
            if (showGpl2)
                cout << "Type 'G' to view the GNU General Public License version 2 (GPLv2)." << endl;
        } else {
            cout << "Type '?' to view the " << theLicense << "." << endl;
        }
        cout << "Type 'y' to accept this license offer." << endl
             << "Type 'n' to decline this license offer." << endl
             << endl
             << "Do you accept the terms of the license?" << endl;
        cin >> accept;
        accept = tolower(accept);

        if (accept == 'y') {
            return true;
        } else if (accept == 'n') {
            return false;
        } else {
            if (dictionary["EDITION"] == "OpenSource") {
                if (accept == 'L')
                    licenseFile = orgLicenseFile + "/LICENSE.LGPL3";
                else
                    licenseFile = orgLicenseFile + "/LICENSE.GPL2";
            }
            // Get console line height, to fill the screen properly
            int i = 0, screenHeight = 25; // default
            CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
            HANDLE stdOut = GetStdHandle(STD_OUTPUT_HANDLE);
            if (GetConsoleScreenBufferInfo(stdOut, &consoleInfo))
                screenHeight = consoleInfo.srWindow.Bottom
                             - consoleInfo.srWindow.Top
                             - 1; // Some overlap for context

            // Prompt the license content to the user
            QFile file(licenseFile);
            if (!file.open(QFile::ReadOnly)) {
                cout << "Failed to load LICENSE file" << licenseFile << endl;
                return false;
            }
            QStringList licenseContent = QString(file.readAll()).split('\n');
            while (i < licenseContent.size()) {
                cout << licenseContent.at(i) << endl;
                if (++i % screenHeight == 0) {
                    promptKeyPress();
                    cout << "\r";     // Overwrite text above
                }
            }
        }
    }
}

void Configure::readLicense()
{
    dictionary["PLATFORM NAME"] = platformName();
    dictionary["LICENSE FILE"] = sourcePath;

    bool openSource = false;
    bool hasOpenSource = QFile::exists(dictionary["LICENSE FILE"] + "/LICENSE.LGPL3") || QFile::exists(dictionary["LICENSE FILE"] + "/LICENSE.GPL2");
    if (dictionary["BUILDTYPE"] == "commercial") {
        openSource = false;
    } else if (dictionary["BUILDTYPE"] == "opensource") {
        openSource = true;
    } else if (hasOpenSource) { // No Open Source? Just display the commercial license right away
        forever {
            char accept = '?';
            cout << "Which edition of Qt do you want to use ?" << endl;
            cout << "Type 'c' if you want to use the Commercial Edition." << endl;
            cout << "Type 'o' if you want to use the Open Source Edition." << endl;
            cin >> accept;
            accept = tolower(accept);

            if (accept == 'c') {
                openSource = false;
                break;
            } else if (accept == 'o') {
                openSource = true;
                break;
            }
        }
    }
    if (hasOpenSource && openSource) {
        cout << endl << "This is the " << dictionary["PLATFORM NAME"] << " Open Source Edition." << endl;
        dictionary["LICENSEE"] = "Open Source";
        dictionary["EDITION"] = "OpenSource";
        cout << endl;
        if (!showLicense(dictionary["LICENSE FILE"])) {
            cout << "Configuration aborted since license was not accepted";
            dictionary["DONE"] = "error";
            return;
        }
    } else if (openSource) {
        cout << endl << "Cannot find the GPL license files! Please download the Open Source version of the library." << endl;
        dictionary["DONE"] = "error";
    }
    else {
        Tools::checkLicense(dictionary, sourcePath, buildPath);
    }
}

void Configure::reloadCmdLine()
{
    if (dictionary[ "REDO" ] == "yes") {
        QFile inFile(buildPath + "/configure" + dictionary[ "CUSTOMCONFIG" ] + ".cache");
        if (inFile.open(QFile::ReadOnly)) {
            QTextStream inStream(&inFile);
            while (!inStream.atEnd())
                configCmdLine += inStream.readLine().trimmed();
            inFile.close();
        }
    }
}

void Configure::saveCmdLine()
{
    if (dictionary[ "REDO" ] != "yes") {
        QFile outFile(buildPath + "/configure" + dictionary[ "CUSTOMCONFIG" ] + ".cache");
        if (outFile.open(QFile::WriteOnly | QFile::Text)) {
            QTextStream outStream(&outFile);
            for (QStringList::Iterator it = configCmdLine.begin(); it != configCmdLine.end(); ++it) {
                outStream << (*it) << endl;
            }
            outStream.flush();
            outFile.close();
        }
    }
}

bool Configure::isDone()
{
    return !dictionary["DONE"].isEmpty();
}

bool Configure::isOk()
{
    return (dictionary[ "DONE" ] != "error");
}

QString Configure::platformName() const
{
    switch (platform()) {
    default:
    case WINDOWS:
        return QStringLiteral("Qt for Windows");
    case WINDOWS_RT:
        return QStringLiteral("Qt for Windows Runtime");
    case QNX:
        return QStringLiteral("Qt for QNX");
    case ANDROID:
        return QStringLiteral("Qt for Android");
    case OTHER:
        return QStringLiteral("Qt for ???");
    }
}

QString Configure::qpaPlatformName() const
{
    switch (platform()) {
    default:
    case WINDOWS:
        return QStringLiteral("windows");
    case WINDOWS_RT:
        return QStringLiteral("winrt");
    case QNX:
        return QStringLiteral("qnx");
    case ANDROID:
        return QStringLiteral("android");
    case OTHER:
        return QStringLiteral("xcb");
    }
}

int Configure::platform() const
{
    const QString qMakeSpec = dictionary.value("QMAKESPEC");
    const QString xQMakeSpec = dictionary.value("XQMAKESPEC");

    if ((xQMakeSpec.startsWith("winphone") || xQMakeSpec.startsWith("winrt")))
        return WINDOWS_RT;

    if (xQMakeSpec.contains("qnx"))
        return QNX;

    if (xQMakeSpec.contains("android"))
        return ANDROID;

    if (!xQMakeSpec.isEmpty())
        return OTHER;

    return WINDOWS;
}

FileWriter::FileWriter(const QString &name)
    : QTextStream()
    , m_name(name)
{
    m_buffer.open(QIODevice::WriteOnly);
    setDevice(&m_buffer);
}

bool FileWriter::flush()
{
    QTextStream::flush();
    QFile oldFile(m_name);
    if (oldFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
        if (oldFile.readAll() == m_buffer.data())
            return true;
        oldFile.close();
    }
    QString dir = QFileInfo(m_name).absolutePath();
    if (!QDir().mkpath(dir)) {
        cout << "Cannot create directory " << qPrintable(QDir::toNativeSeparators(dir)) << ".\n";
        return false;
    }
    QFile file(m_name + ".new");
    if (file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        if (file.write(m_buffer.data()) == m_buffer.data().size()) {
            file.close();
            if (file.error() == QFile::NoError) {
                ::SetFileAttributes((wchar_t*)m_name.utf16(), FILE_ATTRIBUTE_NORMAL);
                QFile::remove(m_name);
                if (!file.rename(m_name)) {
                    cout << "Cannot replace file " << qPrintable(QDir::toNativeSeparators(m_name)) << ".\n";
                    return false;
                }
                return true;
            }
        }
    }
    cout << "Cannot create file " << qPrintable(QDir::toNativeSeparators(file.fileName()))
         << ": " << qPrintable(file.errorString()) << ".\n";
    file.remove();
    return false;
}

QT_END_NAMESPACE