#i114728# force target compatibility when building with a newer OSX SDK

using OSX's MAC_OS_X_VERSION_MAX_ALLOWED define forces the build to be binary
compatibile to the configured deployment target, even when the SDK version
employed for building it is newer than the deployment target

solenv/gbuild/platform/macosx.mk

@@ -111,6 +111,10 @@ endif
 # (see toolkit module for a case where it is necessary to do it this way)
 gb_OBJCXXFLAGS := -x objective-c++ -fobjc-exceptions
 
+ifneq ($(MACOSX_DEPLOYMENT_TARGET),)
+	gb_CXXFLAGS += -DMAC_OS_X_VERSION_MAX_ALLOWED=MAC_OS_X_VERSION_$(subst .,_,$(MACOSX_DEPLOYMENT_TARGET))
+endif
+
 ifneq ($(EXTERNAL_WARNINGS_NOT_ERRORS),TRUE)
 gb_CFLAGS_WERROR := -Werror
 gb_CXXFLAGS_WERROR := -Werror

solenv/inc/unxmacc.mk

@@ -36,10 +36,10 @@ LINKOUTPUT_FILTER=
 #  compiling STLport sources too, either internally or externally.
 CDEFS+=-DGLIBC=2 -D_PTHREADS -D_REENTRANT -DNO_PTHREAD_PRIORITY $(PROCESSOR_DEFINES) -D_USE_NAMESPACE=1
 
-# MAXOSX_DEPLOYMENT_TARGET : The minimum version required to run the build result
-# (safer/easier than dealing with the MAC_OS_X_VERSION_MAX_ALLOWED macro)
-# http://developer.apple.com/technotes/tn2002/tn2064.html
-# done in setsolar/configure now. left here for documentation
+.IF "$(MACOSX_DEPLOYMENT_TARGET)" != ""
+    CDEFS += -DMAC_OS_X_VERSION_MAX_ALLOWED=MAC_OS_X_VERSION_$(subst,.,_ $(MACOSX_DEPLOYMENT_TARGET))
+.ENDIF
+
 CDEFS+=-DQUARTZ 
 EXTRA_CDEFS*=-isysroot $(MACOSX_SDK_PATH)