--- /dev/null
+$(eval $(call import.MODULE.defs,MACOSX,macosx))
+$(eval $(call import.GCC,MACOSX))
+
+MACOSX.src/ = $(SRC/)macosx/
+MACOSX.build/ = $(BUILD/)macosx/
+
+MACOSX.m4.in = $(wildcard $(MACOSX.src/)*.m4)
+MACOSX.m4.out = $(MACOSX.m4.in:$(MACOSX.src/)%.m4=$(MACOSX.build/)%)
+
+## optional special command to run post macro processing
+MACOSX.m4.post.Info.h = $(RM.exe) -f $(MACOSX.build/)HandBrake.build/Preprocessed-Info.plist
+
+MACOSX.targs = HandBrakeCLI HandBrake
+
+## configuration pattern: (standard|debug)[.ARCH]
+## eg. for native build, no debug --> standard
+## eg. for x86_64 build with debug of any level --> debug.x86_64
+MACOSX.conf = $(MACOSX.map.g.$(MACOSX.GCC.g)).$(BUILD.arch)
+
+## this is a mapping to determine which basename config to use in xcodeproj
+MACOSX.map.g.none = standard
+MACOSX.map.g.min = debug
+MACOSX.map.g.std = debug
+MACOSX.map.g.max = debug
+
+###############################################################################
+
+BUILD.out += $(MACOSX.m4.out)
+BUILD.out += $(MACOSX.m4.wc.out)
+
+###############################################################################
+
+MACOSX.XCODE.exe = xcodebuild
+MACOSX.XCODE.project = HandBrake.xcodeproj
+
+## launch a build thru xcode; which in turn will do a nested make against
+## this build system with normal build rules enabled.
+##
+## $(1) = list of targets
+## $(2) = list of goals to shunt thru xcodebuild->make
+##
+XCODE.sysroot = $(foreach sdk,$(GCC.sysroot),-sdk $(sdk))
+MACOSX.XCODE = $(strip \
+ cd $(MACOSX.src/) && \
+ $(MACOSX.XCODE.exe) \
+ -project $(MACOSX.XCODE.project) \
+ -configuration $(MACOSX.conf) \
+ $(XCODE.sysroot) \
+ $(foreach t,$(1),-target $t) \
+ EXTERNAL_SRC='$(XCODE.external.src)' \
+ EXTERNAL_BUILD='$(XCODE.external.build)' \
+ EXTERNAL_PREFIX='$(XCODE.external.prefix)' \
+ EXTERNAL_JOBS='$(BUILD.jobs)' \
+ EXTERNAL_METHOD='$(CONF.method)' \
+ EXTERNAL_CONFARGS='$(CONF.args)' \
+ EXTERNAL_GOALS='$(3)' \
+ EXTERNAL_VARS='$(-*-command-variables-*-)' \
+ $(2) )