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From 062621e0310eddb448ebcc27fc4c1507c2d6e30d Mon Sep 17 00:00:00 2001
From: Martin Jansa <Martin.Jansa@gmail.com>
Date: Sat, 6 Apr 2013 13:15:07 +0200
Subject: [PATCH 03/22] Add -external-hostbindir option

* when cross-compiling it's sometimes useful to use existing tools from machine
  (or in OpenEmbedded built with separate native recipe) when building for target

* this way we can skip bootstraping tools we already have

Upstream-Status: Pending

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 configure                           | 16 +++++++++++++++-
 mkspecs/features/qt_functions.prf   |  5 ++++-
 mkspecs/features/qt_tool.prf        |  2 +-
 qmake/property.cpp                  |  1 +
 qtbase.pro                          | 12 +++++++++---
 src/corelib/global/qlibraryinfo.cpp |  3 ++-
 src/corelib/global/qlibraryinfo.h   |  1 +
 tools/configure/configureapp.cpp    |  8 ++++++++
 8 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/configure b/configure
index 397d53f..80bdd7a 100755
--- a/configure
+++ b/configure
@@ -1046,6 +1046,7 @@ QT_HOST_PREFIX=
 QT_HOST_BINS=
 QT_HOST_LIBS=
 QT_HOST_DATA=
+QT_EXTERNAL_HOST_BINS=
 
 #flags for SQL drivers
 QT_CFLAGS_PSQL=
@@ -1191,7 +1192,8 @@ while [ "$#" -gt 0 ]; do
     -android-ndk-platform| \
     -android-ndk-host| \
     -android-arch| \
-    -android-toolchain-version)
+    -android-toolchain-version| \
+    -external-hostbindir)
         VAR=`echo $1 | sed "s,^-\(.*\),\1,"`
         shift
         VAL="$1"
@@ -1379,6 +1381,9 @@ while [ "$#" -gt 0 ]; do
     hostlibdir)
         QT_HOST_LIBS="$VAL"
         ;;
+    external-hostbindir)
+        QT_EXTERNAL_HOST_BINS="$VAL"
+        ;;
     pkg-config)
         if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
             CFG_PKGCONFIG="$VAL"
@@ -3240,6 +3245,11 @@ if [ "$CFG_COMPILE_EXAMPLES" = "yes" ]; then
     QMAKE_CONFIG="$QMAKE_CONFIG compile_examples"
 fi
 
+# default is empty, don't call makeabs if it is empty
+if [ ! -z "$QT_EXTERNAL_HOST_BINS" ]; then
+    QT_EXTERNAL_HOST_BINS=`"$relpath/config.tests/unix/makeabs" "$QT_EXTERNAL_HOST_BINS"`
+fi
+
 #-------------------------------------------------------------------------------
 # help - interactive parts of the script _after_ this section please
 #-------------------------------------------------------------------------------
@@ -3408,6 +3418,9 @@ Installation options:
     -hostdatadir <dir> . Data used by qmake will be installed to <dir>
                          (default HOSTPREFIX)
 
+    -external-hostbindir <dir> Use external host executables instead of building them
+                         (not used by defaut)
+
 Configure options:
 
  The defaults (*) are usually acceptable. A plus (+) denotes a default value
@@ -3923,6 +3936,7 @@ static const char qt_configure_prefix_path_strs[][256 + 12] = {
     "qt_hbinpath=$QT_HOST_BINS",
     "qt_hlibpath=$QT_HOST_LIBS",
     "qt_hdatpath=$QT_HOST_DATA",
+    "qt_ebinpath=$QT_EXTERNAL_HOST_BINS",
     "qt_targspec=$shortxspec",
     "qt_hostspec=$shortspec",
 #endif
diff --git a/mkspecs/features/qt_functions.prf b/mkspecs/features/qt_functions.prf
index 2f2c94c..4e12d3d 100644
--- a/mkspecs/features/qt_functions.prf
+++ b/mkspecs/features/qt_functions.prf
@@ -194,7 +194,10 @@ defineTest(qtAddRpathLink) {
 defineTest(qtPrepareTool) {
     $$1 = $$eval(QT_TOOL.$${2}.binary)
     isEmpty($$1) {
-        $$1 = $$[QT_HOST_BINS]/$$2
+        $$1 = $$[QT_EXTERNAL_HOST_BINS]/$$2
+        isEmpty($$[QT_EXTERNAL_HOST_BINS]) {
+            $$1 = $$[QT_HOST_BINS]/$$2
+        }
         exists($$eval($$1).pl) {
             $$1 = perl -w $$eval($$1).pl
         } else: contains(QMAKE_HOST.os, Windows) {
diff --git a/mkspecs/features/qt_tool.prf b/mkspecs/features/qt_tool.prf
index 9a6b963..83ef3a0 100644
--- a/mkspecs/features/qt_tool.prf
+++ b/mkspecs/features/qt_tool.prf
@@ -16,7 +16,7 @@ CONFIG += console
 # If we are doing a prefix build, create a "module" pri which enables
 # qtPrepareTool() to work with the non-installed build.
 # Non-bootstrapped tools always need this because of the environment setup.
-!build_pass:if(!host_build|!force_bootstrap|force_independent) {
+!build_pass:if(!host_build|!force_bootstrap|force_independent):isEmpty($$[QT_EXTERNAL_HOST_BINS]) {
     isEmpty(MODULE):MODULE = $$TARGET
 
     !host_build|!force_bootstrap: MODULE_DEPENDS = $$replace(QT, -private$, )
diff --git a/qmake/property.cpp b/qmake/property.cpp
index 4685440..93eb1d4 100644
--- a/qmake/property.cpp
+++ b/qmake/property.cpp
@@ -75,6 +75,7 @@ static const struct {
     { "QT_HOST_DATA", QLibraryInfo::HostDataPath, true },
     { "QT_HOST_BINS", QLibraryInfo::HostBinariesPath, true },
     { "QT_HOST_LIBS", QLibraryInfo::HostLibrariesPath, true },
+    { "QT_EXTERNAL_HOST_BINS", QLibraryInfo::ExternalHostBinariesPath, true },
     { "QMAKE_SPEC", QLibraryInfo::HostSpecPath, true },
     { "QMAKE_XSPEC", QLibraryInfo::TargetSpecPath, true },
 };
diff --git a/qtbase.pro b/qtbase.pro
index d6726b5..28ca7d5 100644
--- a/qtbase.pro
+++ b/qtbase.pro
@@ -70,16 +70,22 @@ CONFIG -= qt
 
 #qmake
 qmake.path = $$[QT_HOST_BINS]
+qmake.files = $$OUT_PWD/bin/qmake
+!isEmpty($$[QT_EXTERNAL_HOST_BINS]) {
+   qmake.files = $$[QT_EXTERNAL_HOST_BINS]/bin/qmake
+}
 equals(QMAKE_HOST.os, Windows) {
-   qmake.files = $$OUT_PWD/bin/qmake.exe
-} else {
-   qmake.files = $$OUT_PWD/bin/qmake
+   qmake.files = $${qmake.files}.exe
 }
 INSTALLS += qmake
 
 #syncqt
 syncqt.path = $$[QT_HOST_BINS]
 syncqt.files = $$PWD/bin/syncqt.pl
+syncqt.files = $$PWD/bin/syncqt.pl
+!isEmpty($$[QT_EXTERNAL_HOST_BINS]) {
+   syncqt.files = $$[QT_EXTERNAL_HOST_BINS]/bin/syncqt.pl
+}
 INSTALLS += syncqt
 
 # If we are doing a prefix build, create a "module" pri which enables
diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index 8ca2102..9f5d444 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -270,7 +270,7 @@ QLibraryInfo::isDebugBuild()
  */
 
 static const struct {
-    char key[19], value[13];
+    char key[21], value[13];
 } qtConfEntries[] = {
     { "Prefix", "." },
     { "Documentation", "doc" }, // should be ${Data}/doc
@@ -296,6 +296,7 @@ static const struct {
     { "HostBinaries", "bin" },
     { "HostLibraries", "lib" },
     { "HostData", "." },
+    { "ExternalHostBinaries", "" },
     { "TargetSpec", "" },
     { "HostSpec", "" },
 #endif
diff --git a/src/corelib/global/qlibraryinfo.h b/src/corelib/global/qlibraryinfo.h
index b275e01..0e6baed 100644
--- a/src/corelib/global/qlibraryinfo.h
+++ b/src/corelib/global/qlibraryinfo.h
@@ -84,6 +84,7 @@ public:
         HostBinariesPath,
         HostLibrariesPath,
         HostDataPath,
+        ExternalHostBinariesPath,
         TargetSpecPath,
         HostSpecPath,
         LastHostPath = HostSpecPath,
diff --git a/tools/configure/configureapp.cpp b/tools/configure/configureapp.cpp
index a6376bb..aed85ce 100644
--- a/tools/configure/configureapp.cpp
+++ b/tools/configure/configureapp.cpp
@@ -1162,6 +1162,13 @@ void Configure::parseCmdLine()
             dictionary[ "QT_HOST_DATA" ] = configCmdLine.at(i);
         }
 
+        else if (configCmdLine.at(i) == "-external-hostbindir") {
+            ++i;
+            if (i == argCount)
+                break;
+            dictionary[ "QT_EXTERNAL_HOST_BINS" ] = configCmdLine.at(i);
+        }
+
         else if (configCmdLine.at(i) == "-make-tool") {
             ++i;
             if (i == argCount)
@@ -3708,6 +3715,7 @@ void Configure::generateQConfigCpp()
                   << "    \"qt_hbinpath=" << formatPath(dictionary["QT_HOST_BINS"]) << "\"," << endl
                   << "    \"qt_hlibpath=" << formatPath(dictionary["QT_HOST_LIBS"]) << "\"," << endl
                   << "    \"qt_hdatpath=" << formatPath(dictionary["QT_HOST_DATA"]) << "\"," << endl
+                  << "    \"qt_ebinpath=" << formatPath(dictionary["QT_EXTERNAL_HOST_BINS"]) << "\"," << endl
                   << "    \"qt_targspec=" << targSpec << "\"," << endl
                   << "    \"qt_hostspec=" << hostSpec << "\"," << endl
                   << "#endif" << endl
-- 
1.8.3.1