Fix deployment target warnings

Author: tresf

native/Makefile

@@ -411,9 +411,11 @@ XCODE_VERSION=$(shell xcodebuild -version | grep Xcode | sed 's/^Xcode \([1-9][0
 MACOS_VERSION_MAJOR=$(shell sw_vers -productVersion | cut -d. -f 1)
 MACOS_VERSION_MINOR=$(shell sw_vers -productVersion | cut -d. -f 2)
 JAVA_INCLUDES+=-I/System/Library/Frameworks/JavaVM.framework/Headers
+# Actual deployment target depends on SDK support
+MACOSX_DEPLOYMENT_TARGET=10.3
 DEFAULT_ARCH=$(shell arch)
 HOST_CONFIG=--host $(DARWIN_ARCH)-apple-darwin
-FFI_ENV += CC="$(CC)" CFLAGS="-arch $(DARWIN_ARCH) $(ISYSROOT) $(COPT) $(CDEBUG)" CPPFLAGS="$(CDEFINES)" LD="$(LD) -arch $(DARWIN_ARCH)"
+FFI_ENV += CC="$(CC)" CFLAGS="-mmacosx-version-min=$(MACOSX_DEPLOYMENT_TARGET) -arch $(DARWIN_ARCH) $(ISYSROOT) $(COPT) $(CDEBUG)" CPPFLAGS="$(CDEFINES)" LD="$(LD) -arch $(DARWIN_ARCH)"
 LIBSFX=.dylib
 JNISFX=-$(ARCH).jnilib
 # JAWT no longer supported on OSX
@@ -444,7 +446,7 @@ endif
 LDFLAGS=$(ARCHFLAGS) -dynamiclib -o $@ $(FRAMEWORK) \
   -compatibility_version $(shell echo ${JNA_JNI_VERSION}|sed 's/^\([0-9][0-9]*\).*/\1/g') \
   -current_version $(JNA_JNI_VERSION) \
-  -mmacosx-version-min=10.3 \
+  -mmacosx-version-min=$(MACOSX_DEPLOYMENT_TARGET) \
   -framework Foundation \
   $(NO_COMPACT_UNWIND) \
   -install_name ${@F} \
@@ -459,7 +461,7 @@ endif
 $(BUILD)/%.o : %.c dispatch.h protect.h $(FFI_LIB)
 	@mkdir -p $(BUILD)
 ifneq ($(SDKROOT),)
-	$(CC) $(LOC_CC_OPTS) -arch $(DARWIN_ARCH) $(CFLAGS) -c $< -o $@
+	$(CC) $(LOC_CC_OPTS) -mmacosx-version-min=$(MACOSX_DEPLOYMENT_TARGET) -arch $(DARWIN_ARCH) $(CFLAGS) -c $< -o $@
 else
 	$(CC) $(CFLAGS) $(LOC_CC_OPTS) -c $< $(COUT)
 endif