Configure: Set separate_debug_info for all modules

separate_debug_info was previously stored in .qmake.cache, and
therefore only affected qtbase. Store it as a QT_CONFIG setting instead,
and add it to CONFIG for all Qt plugins and modules.

Change-Id: I940c8cb30f1c42c85f4d0342e6a482f20677ff04
Reviewed-on: http://codereview.qt.nokia.com/2975
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>

configure

@@ -7113,10 +7113,10 @@ fi
 if [ "$CFG_SEPARATE_DEBUG_INFO" = "yes" ]; then
     QMakeVar add QMAKE_CFLAGS -g
     QMakeVar add QMAKE_CXXFLAGS -g
-    QMAKE_CONFIG="$QMAKE_CONFIG separate_debug_info"
+    QT_CONFIG="$QT_CONFIG separate_debug_info"
 fi
 if [ "$CFG_SEPARATE_DEBUG_INFO_NOCOPY" = "yes" ] ; then
-    QMAKE_CONFIG="$QMAKE_CONFIG separate_debug_info_nocopy"
+    QT_CONFIG="$QT_CONFIG separate_debug_info_nocopy"
 fi
 [ "$CFG_MMX" = "yes" ] && QMAKE_CONFIG="$QMAKE_CONFIG mmx"
 [ "$CFG_3DNOW" = "yes" ] && QMAKE_CONFIG="$QMAKE_CONFIG 3dnow"

mkspecs/features/qt_module_config.prf

@@ -59,6 +59,8 @@ linux*:QMAKE_LFLAGS += $$QMAKE_LFLAGS_NOUNDEF
 contains(QT_CONFIG, reduce_exports):CONFIG += hide_symbols
 unix:contains(QT_CONFIG, reduce_relocations):CONFIG += bsymbolic_functions
 contains(QT_CONFIG, largefile):CONFIG += largefile
+contains(QT_CONFIG, separate_debug_info):CONFIG += separate_debug_info
+contains(QT_CONFIG, separate_debug_info_nocopy):CONFIG += separate_debug_info_nocopy
 
 #mac frameworks
 mac:!static:contains(QT_CONFIG, qt_framework) {

mkspecs/features/qt_plugin.prf

@@ -9,6 +9,8 @@ CONFIG += qt plugin
 win32|mac:!wince*:!win32-msvc:!macx-xcode:CONFIG += debug_and_release
 TARGET = $$qtLibraryTarget($$TARGET)
 contains(QT_CONFIG, reduce_exports):CONFIG += hide_symbols
+contains(QT_CONFIG, separate_debug_info):CONFIG += separate_debug_info
+contains(QT_CONFIG, separate_debug_info_nocopy):CONFIG += separate_debug_info_nocopy
 
 load(qt_targets)