Merge "Link against Mac OSX 10.5 SDK if building on 10.6." into gingerbread

HOST_GLOBAL_CFLAGS += -m32

HOST_GLOBAL_LDFLAGS += -m32

# Use the Mac OSX SDK 10.5 if the build host is 10.6

build_mac_version := $(shell sw_vers -productVersion)

ifneq ($(filter 10.6.%, $(build_mac_version)),)

sdk_105_root := /Developer/SDKs/MacOSX10.5.sdk

ifeq ($(wildcard $(sdk_105_root)),)

$(warning *****************************************************)

$(warning * You are building on Mac OSX 10.6.)

$(warning * Can not find SDK 10.5 at $(sdk_105_root))

$(warning *****************************************************)

$(error Stop.)

endif

HOST_GLOBAL_CFLAGS += -isysroot $(sdk_105_root) -mmacosx-version-min=10.5

HOST_GLOBAL_LDFLAGS += -isysroot $(sdk_105_root) -mmacosx-version-min=10.5

endif # build_mac_version is 10.6

HOST_GLOBAL_CFLAGS += -fPIC

HOST_NO_UNDEFINED_LDFLAGS := -Wl,-undefined,error