add configure -extprefix option

this adds the possibility to put the actual qt installation outside the
sysroot it is configured for. this makes it possible to install an
x-built qt without "polluting" the sysroot, which makes it possible to
have read-only sysroots, and multiple qt builds for one sysroot.

-prefix is the location within the sysroot as seen by the target itself,
and gets "burned" into QLibraryInfo in QtCore.
-extprefix is the location in the host file system and gets "burned"
into QLibraryInfo in qmake. if it is not specified, it defaults to the
sysrootified prefix, which is the previous behavior.

Task-number: QTBUG-26680
Change-Id: Ia43833c4e27733159afeb8c8b9b2d981378d0cd1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 78 insertions, 2 deletions

diff --git a/configure b/configure
index ba6248eba8..f730ff4e46 100755
--- a/configure
+++ b/configure
@@ -384,6 +384,16 @@ filterLibraryOptions()
     filterPathOptions -L "$DEFAULT_LIBDIRS"
 }
 
+substPrefix()
+{
+    base=${1#$QT_SYSROOT_PREFIX}
+    if [ x"$base" != x"$1" ]; then
+        echo "$QT_EXT_PREFIX$base"
+    else
+        echo "$1"
+    fi
+}
+
 #-------------------------------------------------------------------------------
 # device options
 #-------------------------------------------------------------------------------
@@ -1014,6 +1024,7 @@ QT_HOST_PREFIX=
 QT_HOST_BINS=
 QT_HOST_LIBS=
 QT_HOST_DATA=
+QT_EXT_PREFIX=
 
 #flags for SQL drivers
 QT_CFLAGS_PSQL=
@@ -1139,6 +1150,7 @@ while [ "$#" -gt 0 ]; do
     -hostdatadir| \
     -hostbindir| \
     -hostlibdir| \
+    -extprefix| \
     -sysroot| \
     -depths| \
     -make| \
@@ -1347,6 +1359,9 @@ while [ "$#" -gt 0 ]; do
     hostlibdir)
         QT_HOST_LIBS="$VAL"
         ;;
+    extprefix)
+        QT_EXT_PREFIX="$VAL"
+        ;;
     pkg-config)
         if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
             CFG_PKGCONFIG="$VAL"
@@ -3174,6 +3189,39 @@ if [ -z "$QT_INSTALL_TESTS" ]; then #default
 fi
 QT_INSTALL_TESTS=`"$relpath/config.tests/unix/makeabs" "$QT_INSTALL_TESTS"`
 
+#------- sysroot-external install paths --------
+
+QT_SYSROOT_PREFIX=$QT_INSTALL_PREFIX
+QT_SYSROOT_DOCS=$QT_INSTALL_DOCS
+QT_SYSROOT_HEADERS=$QT_INSTALL_HEADERS
+QT_SYSROOT_LIBS=$QT_INSTALL_LIBS
+QT_SYSROOT_LIBEXECS=$QT_INSTALL_LIBEXECS
+QT_SYSROOT_BINS=$QT_INSTALL_BINS
+QT_SYSROOT_PLUGINS=$QT_INSTALL_PLUGINS
+QT_SYSROOT_IMPORTS=$QT_INSTALL_IMPORTS
+QT_SYSROOT_QML=$QT_INSTALL_QML
+QT_SYSROOT_ARCHDATA=$QT_INSTALL_ARCHDATA
+QT_SYSROOT_DATA=$QT_INSTALL_DATA
+QT_SYSROOT_TRANSLATIONS=$QT_INSTALL_TRANSLATIONS
+QT_SYSROOT_EXAMPLES=$QT_INSTALL_EXAMPLES
+QT_SYSROOT_TESTS=$QT_INSTALL_TESTS
+if [ -n "$QT_EXT_PREFIX" ]; then
+    QT_INSTALL_PREFIX=$QT_EXT_PREFIX
+    QT_INSTALL_DOCS=`substPrefix "$QT_INSTALL_DOCS"`
+    QT_INSTALL_HEADERS=`substPrefix "$QT_INSTALL_HEADERS"`
+    QT_INSTALL_LIBS=`substPrefix "$QT_INSTALL_LIBS"`
+    QT_INSTALL_LIBEXECS=`substPrefix "$QT_INSTALL_LIBEXECS"`
+    QT_INSTALL_BINS=`substPrefix "$QT_INSTALL_BINS"`
+    QT_INSTALL_PLUGINS=`substPrefix "$QT_INSTALL_PLUGINS"`
+    QT_INSTALL_IMPORTS=`substPrefix "$QT_INSTALL_IMPORTS"`
+    QT_INSTALL_QML=`substPrefix "$QT_INSTALL_QML"`
+    QT_INSTALL_ARCHDATA=`substPrefix "$QT_INSTALL_ARCHDATA"`
+    QT_INSTALL_DATA=`substPrefix "$QT_INSTALL_DATA"`
+    QT_INSTALL_TRANSLATIONS=`substPrefix "$QT_INSTALL_TRANSLATIONS"`
+    QT_INSTALL_EXAMPLES=`substPrefix "$QT_INSTALL_EXAMPLES"`
+    QT_INSTALL_TESTS=`substPrefix "$QT_INSTALL_TESTS"`
+fi
+
 #------- host paths --------
 
 if [ -z "$QT_HOST_PREFIX" ]; then
@@ -3341,10 +3389,13 @@ Installation options:
     -prefix <dir> ...... This will install everything relative to <dir>
                          (default $QT_INSTALL_PREFIX)
 
+    -extprefix <dir> ... When -sysroot is used, install everything to <dir>,
+                         rather than into SYSROOT/PREFIX.
+
     -hostprefix [dir] .. Tools and libraries needed when developing
                          applications are installed in [dir]. If [dir] is
                          not given, the current build directory will be used.
-                         (default PREFIX)
+                         (default EXTPREFIX)
 
  You may use these to separate different parts of the install:
 
@@ -3869,6 +3920,12 @@ esac
 shortxspec=`echo $XQMAKESPEC | sed "s,^${relpath}/mkspecs/,,"`
 shortspec=`echo $QMAKESPEC | sed "s,^${relpath}/mkspecs/,,"`
 
+if [ -z "$QT_EXT_PREFIX" ]; then
+    QMAKE_SYSROOTIFY=y
+else
+    QMAKE_SYSROOTIFY=n
+fi
+
 cat > "$outpath/src/corelib/global/qconfig.cpp.new" <<EOF
 /* License Info */
 static const char qt_configure_licensee_str          [256 + 12] = "qt_lcnsuser=$Licensee";
@@ -3879,6 +3936,22 @@ static const char qt_configure_installation          [12+11]    = "qt_instdate=`
 
 /* Installation Info */
 static const char qt_configure_prefix_path_strs[][256 + 12] = {
+#ifndef QT_BUILD_QMAKE
+    "qt_prfxpath=$QT_SYSROOT_PREFIX",
+    "qt_docspath=$QT_SYSROOT_DOCS",
+    "qt_hdrspath=$QT_SYSROOT_HEADERS",
+    "qt_libspath=$QT_SYSROOT_LIBS",
+    "qt_lbexpath=$QT_SYSROOT_LIBEXECS",
+    "qt_binspath=$QT_SYSROOT_BINS",
+    "qt_plugpath=$QT_SYSROOT_PLUGINS",
+    "qt_impspath=$QT_SYSROOT_IMPORTS",
+    "qt_qml2path=$QT_SYSROOT_QML",
+    "qt_adatpath=$QT_SYSROOT_ARCHDATA",
+    "qt_datapath=$QT_SYSROOT_DATA",
+    "qt_trnspath=$QT_SYSROOT_TRANSLATIONS",
+    "qt_xmplpath=$QT_SYSROOT_EXAMPLES",
+    "qt_tstspath=$QT_SYSROOT_TESTS",
+#else
     "qt_prfxpath=$QT_INSTALL_PREFIX",
     "qt_docspath=$QT_INSTALL_DOCS",
     "qt_hdrspath=$QT_INSTALL_HEADERS",
@@ -3893,7 +3966,6 @@ static const char qt_configure_prefix_path_strs[][256 + 12] = {
     "qt_trnspath=$QT_INSTALL_TRANSLATIONS",
     "qt_xmplpath=$QT_INSTALL_EXAMPLES",
     "qt_tstspath=$QT_INSTALL_TESTS",
-#ifdef QT_BUILD_QMAKE
     "qt_ssrtpath=$CFG_SYSROOT",
     "qt_hpfxpath=$QT_HOST_PREFIX",
     "qt_hbinpath=$QT_HOST_BINS",
@@ -3904,6 +3976,10 @@ static const char qt_configure_prefix_path_strs[][256 + 12] = {
 #endif
 };
 static const char qt_configure_settings_path_str[256 + 12] = "qt_stngpath=$QT_INSTALL_SETTINGS";
+
+#ifdef QT_BUILD_QMAKE
+static const char qt_sysrootify_prefix[] = "qt_ssrtfpfx=$QMAKE_SYSROOTIFY";
+#endif
 EOF
 
 cat >> "$outpath/src/corelib/global/qconfig.cpp.new" <<EOF