Make Mac SDK into a regular depends package

contrib/depends/Makefile

@@ -2,7 +2,6 @@
 
 SOURCES_PATH ?= $(BASEDIR)/sources
 BASE_CACHE ?= $(BASEDIR)/built
-SDK_PATH ?= $(BASEDIR)/SDKs
 FALLBACK_DOWNLOAD_PATH ?= https://downloads.getmonero.org/depends-sources
 
 BUILD = $(shell ./config.guess)
@@ -185,7 +184,6 @@ $(host_prefix)/share/toolchain.cmake : toolchain.cmake.in $(host_prefix)/.stamp_
             -e 's|@build_tests@|$(build_tests)|' \
             -e 's|@depends@|$(host_cmake)|' \
             -e 's|@prefix@|$($(host_arch)_$(host_os)_prefix)|'\
-            -e 's|@sdk@|$(SDK_PATH)|'\
             -e 's|@arch@|$(host_arch)|'\
             $< > $@
 	$(AT)touch $@

contrib/depends/README.md

@@ -30,7 +30,7 @@ Common `host-platform-triplets` for cross compilation are:
 
 - `i686-w64-mingw32` for Win32
 - `x86_64-w64-mingw32` for Win64
-- `x86_64-apple-darwin11` for MacOSX
+- `x86_64-apple-darwin11` for MacOSX x86_64
 - `arm-linux-gnueabihf` for Linux ARM 32 bit
 - `aarch64-linux-gnu` for Linux ARM 64 bit
 - `riscv64-linux-gnu` for Linux RISCV 64 bit
@@ -43,7 +43,6 @@ The following can be set when running make: make FOO=bar
 ```
 SOURCES_PATH: downloaded sources will be placed here
 BASE_CACHE: built packages will be placed here
-SDK_PATH: Path where sdk's can be found (used by OSX)
 FALLBACK_DOWNLOAD_PATH: If a source file can't be fetched, try here before giving up
 DEBUG: disable some optimizations and enable more runtime checking
 HOST_ID_SALT: Optional salt to use when generating host package ids
@@ -59,14 +58,6 @@ download-win: run 'make download-win' to fetch all sources needed for win builds
 download-linux: run 'make download-linux' to fetch all sources needed for linux builds
 ```
 
-#Darwin (macos) builds:
-
-To build with the x86_64-apple-darwin11 you require the mac os developer tools in MacOSX11.1.sdk.
-Download it from apple, or search for it on github. Create a new directoty called SDKs in this
-directory and place the entire MacOSX11.1.sdk folder in it. The depends build will then pick it up automatically
-(without requiring SDK_PATH). 
-
-
 #Mingw builds
 
 Building for 32/64bit mingw requires switching alternatives to a posix mode

contrib/depends/hosts/darwin.mk

@@ -1,14 +1,12 @@
 OSX_MIN_VERSION=10.8
-OSX_SDK_VERSION=11.1
-OSX_SDK=$(SDK_PATH)/MacOSX$(OSX_SDK_VERSION).sdk
 LD64_VERSION=609
 ifeq (aarch64, $(host_arch))
 CC_target=arm64-apple-darwin11
 else
 CC_target=$(host)
 endif
-darwin_CC=clang -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) -B$(host_prefix)/native/bin/$(host)-
-darwin_CXX=clang++ -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) -stdlib=libc++ -B$(host_prefix)/native/bin/$(host)-
+darwin_CC=clang -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(host_prefix)/native/SDK/ -mlinker-version=$(LD64_VERSION) -B$(host_prefix)/native/bin/$(host)-
+darwin_CXX=clang++ -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(host_prefix)/native/SDK/ -mlinker-version=$(LD64_VERSION) -stdlib=libc++ -B$(host_prefix)/native/bin/$(host)-
 
 darwin_CFLAGS=-pipe
 darwin_CXXFLAGS=$(darwin_CFLAGS)
@@ -20,4 +18,4 @@ darwin_release_CXXFLAGS=$(darwin_release_CFLAGS)
 darwin_debug_CFLAGS=-O1
 darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
 
-darwin_native_toolchain=native_cctools
+darwin_native_toolchain=native_cctools darwin_sdk

contrib/depends/packages/darwin_sdk.mk

@@ -0,0 +1,10 @@
+package=darwin_sdk
+$(package)_version=11.1
+$(package)_download_path=https://github.com/phracker/MacOSX-SDKs/releases/download/11.3/
+$(package)_file_name=MacOSX$($(package)_version).sdk.tar.xz
+$(package)_sha256_hash=68797baaacb52f56f713400de306a58a7ca00b05c3dc6d58f0a8283bcac721f8
+
+define $(package)_stage_cmds
+  mkdir -p $($(package)_staging_dir)/$(host_prefix)/native/SDK &&\
+  mv * $($(package)_staging_dir)/$(host_prefix)/native/SDK
+endef

contrib/depends/packages/packages.mk

@@ -34,6 +34,6 @@ mingw32_packages = icu4c sodium $(hardware_packages)
 mingw32_native_packages = $(hardware_native_packages)
 
 ifneq ($(build_os),darwin)
-darwin_native_packages += native_clang native_cctools native_libtapi
+darwin_native_packages += darwin_sdk native_clang native_cctools native_libtapi
 endif
 

contrib/depends/toolchain.cmake.in

@@ -95,7 +95,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
   SET(BUILD_64 ON)
   SET(BREW OFF)
   SET(PORT OFF)
-  SET(CMAKE_OSX_SYSROOT "@sdk@/MacOSX11.1.sdk/")
+  SET(CMAKE_OSX_SYSROOT "@prefix@/native/SDK/")
   SET(CMAKE_OSX_DEPLOYMENT_TARGET "10.08")
   SET(CMAKE_CXX_STANDARD 14)
   SET(LLVM_ENABLE_PIC OFF)