ifeq ($(OS),macos)

#----------------------------------------------------------------------------------------------

## pip install --user puts packages here:
#export PATH:=$(PATH):$(HOME)/Library/Python/2.7/bin

#----------------------------------------------------------------------------------------------

ifeq ($(OSNICK),sequoia)
OSX_MIN_SDK_VER=15.0
else ifeq ($(OSNICK),sonoma)
OSX_MIN_SDK_VER=14.0
else ifeq ($(OSNICK),ventura)
OSX_MIN_SDK_VER=13.0
else ifeq ($(OSNICK),monterey)
OSX_MIN_SDK_VER=12.0
else ifeq ($(OSNICK),bigsur)
OSX_MIN_SDK_VER=11.00
else ifeq ($(OSNICK),catalina)
OSX_MIN_SDK_VER=10.15
else ifeq ($(OSNICK),sonoma)
OSX_MIN_SDK_VER=14.2
endif

CC_FLAGS.macos += -mmacosx-version-min=$(OSX_MIN_SDK_VER)
CMAKE_FLAGS += -DCMAKE_OSX_DEPLOYMENT_TARGET=$(OSX_MIN_SDK_VER)

 MACOS_SDK_PREFIX:=$(shell xcrun --show-sdk-path)

 export CPPFLAGS += -I$(MACOS_SDK_PREFIX)/usr/include
 export LDFLAGS += -L$(MACOS_SDK_PREFIX)/usr/lib

 CC_FLAGS.macos += \
	-isysroot $(MACOS_SDK_PREFIX) \
	-I$(MACOS_SDK_PREFIX)/usr/include \
	-Wno-expansion-to-defined \
	-Wno-nullability-completeness

 LD_FLAGS.macos += -L$(MACOS_SDK_PREFIX)/usr/lib

#----------------------------------------------------------------------------------------------

define add_macos_package
	__$1:=$(call toupper,$1)
	ifeq ($$($1_prefix),)
		$1_prefix=$$(call cached-shell,$1_prefix,brew --prefix $1)
	endif

	ifneq ($$($1_prefix),)
		PKG_CONFIG_DIRS += $$($1_prefix)
		CPPFLAGS += -I$$($1_prefix)/include
		LDFLAGS += -L$$($1_prefix)/lib
	endif
endef

MACOS_PACKAGES ?= ALL

ifeq ($(MACOS_PACKAGES),ALL)
override MACOS_PACKAGES=zlib openssl readline libiconv gettext
endif

$(foreach pkg,$(MACOS_PACKAGES),$(eval $(call add_macos_package,$(pkg))))

ifneq ($(wildcard /usr/local/lib/libintl.a),)
gettext_prefix := /usr/local
endif

export PKG_CONFIG_PATH:=$(subst $(__SPACE),:,$(strip $(addsuffix /lib/pkgconfig,$(PKG_CONFIG_DIRS)))):$(PKG_CONFIG_PATH)

CONFIGURE_FLAGS.macos += \
	CPPFLAGS='$(CPPFLAGS)' \
	LDFLAGS='$(LDFLAGS)' \
	--with-openssl=$(openssl_prefix)

#----------------------------------------------------------------------------------------------

endif # macos