Remove QMAKE_MACOS_DEPLOYMENT_TARGET.

Not needed any more, 10.5 and up supports setting
the deployment target/minimum version on the
compiler command line.

configure

@@ -6967,19 +6967,6 @@ fi
 [ "$XPLATFORM_MINGW" = "yes" ] && CFG_MAC_COCOA="no"
 [ "$XPLATFORM_SYMBIAN" = "yes" ] && CFG_MAC_COCOA="no"
 
-# set the global Mac deployment target. This is overridden on an arch-by-arch basis
-# in some cases, see code further down
-case "$PLATFORM,$CFG_MAC_COCOA" in
-    macx*,yes)
-	# Cocoa
-	QMakeVar set QMAKE_MACOSX_DEPLOYMENT_TARGET 10.5
-	;;
-    macx*,no)
-	# gcc, Carbon
-	QMakeVar set QMAKE_MACOSX_DEPLOYMENT_TARGET 10.4
-	;;
-esac
-
 # disable Qt 3 support on VxWorks and Symbian
 case "$XPLATFORM" in
     unsupported/vxworks*|symbian*)
@@ -7716,9 +7703,7 @@ if [ "$CFG_EXCEPTIONS" = "no" ]; then
 fi
 
 # On Mac, set the minimum deployment target for the different architechtures 
-# using the Xarch compiler option when supported (10.5 and up).  On 10.4 the
-# deployment version is set to 10.4 globally using the QMAKE_MACOSX_DEPLOYMENT_TARGET
-# env. variable. 
+# using the Xarch compiler option when supported (10.5 and up).
 if [ "$PLATFORM_MAC" = "yes" ] && [ "$CFG_MAC_XARCH" != "no" ] ; then
     if echo "$CFG_MAC_ARCHS" | grep '\<x86\>' > /dev/null 2>&1; then
         QMakeVar add QMAKE_CFLAGS "-Xarch_i386 -mmacosx-version-min=10.4"

mkspecs/common/mac.conf

@@ -38,7 +38,6 @@ QMAKE_DEL_FILE		= rm -f
 QMAKE_DEL_DIR		= rmdir
 QMAKE_CHK_DIR_EXISTS	= test -d
 QMAKE_MKDIR		= mkdir -p
-QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.4 # overridden to 10.5 for Cocoa on the compiler command line
 
 
 include(unix.conf)

qmake/generators/unix/unixmake2.cpp

@@ -175,9 +175,6 @@ UnixMakefileGenerator::writeMakeParts(QTextStream &t)
     t << "MOVE          = " << var("QMAKE_MOVE") << endl;
     t << "CHK_DIR_EXISTS= " << var("QMAKE_CHK_DIR_EXISTS") << endl;
     t << "MKDIR         = " << var("QMAKE_MKDIR") << endl;
-    if(!project->isEmpty("QMAKE_MACOSX_DEPLOYMENT_TARGET"))
-        t << "export MACOSX_DEPLOYMENT_TARGET = " //exported to children processes
-          << project->first("QMAKE_MACOSX_DEPLOYMENT_TARGET") << endl;
 
     if (!project->isEmpty("QMAKE_SYMBIAN_SHLIB")) {
         t << "vpath %.dso " << project->values("QMAKE_LIBDIR").join(":") << endl;

qmake/qmake.pri

@@ -134,7 +134,6 @@ bootstrap { #Qt code
         mac {
           SOURCES += qfilesystemengine_mac.cpp
           SOURCES += qcore_mac.cpp qsettings_mac.cpp
-          QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.4 #enables weak linking for 10.4 (exported)
           LIBS += -framework ApplicationServices
         }
     } else:win32 {

src/tools/bootstrap/bootstrap.pro

@@ -108,7 +108,6 @@ else:unix:SOURCES += ../../corelib/tools/qlocale_unix.cpp
 else:win32:SOURCES += ../../corelib/tools/qlocale_win.cpp
 
 macx: {
-   QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.4 #enables weak linking for 10.4 (exported)
    SOURCES += ../../corelib/io/qfilesystemengine_mac.cpp
    SOURCES += ../../corelib/kernel/qcore_mac.cpp
    LIBS += -framework CoreServices