1OSX_MIN_VERSION=10.12
2OSX_SDK_VERSION=10.15.1
3XCODE_VERSION=11.3.1
4XCODE_BUILD_ID=11C505
5LD64_VERSION=530
6
7OSX_SDK=$(SDK_PATH)/Xcode-$(XCODE_VERSION)-$(XCODE_BUILD_ID)-extracted-SDK-with-libcxx-headers
8
9# Flag explanations:
10#
11#     -mlinker-version
12#
13#         Ensures that modern linker features are enabled. See here for more
14#         details: https://github.com/bitcoin/bitcoin/pull/19407.
15#
16#     -B$(build_prefix)/bin
17#
18#         Explicitly point to our binaries (e.g. cctools) so that they are
19#         ensured to be found and preferred over other possibilities.
20#
21#     -nostdinc++ -isystem $(OSX_SDK)/usr/include/c++/v1
22#
23#         Forces clang to use the libc++ headers from our SDK and completely
24#         forget about the libc++ headers from the standard directories
25#
26#         TODO: Once we start requiring a clang version that has the
27#         -stdlib++-isystem<directory> flag first introduced here:
28#         https://reviews.llvm.org/D64089, we should use that instead. Read the
29#         differential summary there for more details.
30#
31darwin_CC=clang -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) -B$(build_prefix)/bin
32darwin_CXX=clang++ -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -stdlib=libc++ -mlinker-version=$(LD64_VERSION) -B$(build_prefix)/bin -nostdinc++ -isystem $(OSX_SDK)/usr/include/c++/v1
33
34darwin_CFLAGS=-pipe
35darwin_CXXFLAGS=$(darwin_CFLAGS)
36
37darwin_release_CFLAGS=-O2
38darwin_release_CXXFLAGS=$(darwin_release_CFLAGS)
39
40darwin_debug_CFLAGS=-O1
41darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
42
43darwin_native_binutils=native_cctools
44ifeq ($(strip $(FORCE_USE_SYSTEM_CLANG)),)
45darwin_native_toolchain=native_cctools
46else
47darwin_native_toolchain=
48endif
49
50darwin_cmake_system=Darwin
51