--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mkspecs/features/mac/sdk.prf	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,8 @@
+!isEmpty(QMAKE_MAC_SDK) {
+    !macx-xcode:!macx-pbuilder {
+        QMAKE_CFLAGS += -isysroot $$QMAKE_MAC_SDK
+        QMAKE_OBJECTIVE_CFLAGS += -isysroot $$QMAKE_MAC_SDK
+        QMAKE_CXXFLAGS += -isysroot $$QMAKE_MAC_SDK
+        QMAKE_LFLAGS += -Wl,-syslibroot,$$QMAKE_MAC_SDK
+    }
+}