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OSX_MIN_VERSION=11.0
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OSX_SDK_VERSION=14.0
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XCODE_VERSION=15.0
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XCODE_BUILD_ID=15A240d
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LLD_VERSION=711
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OSX_SDK=$(SDK_PATH)/Xcode-$(XCODE_VERSION)-$(XCODE_BUILD_ID)-extracted-SDK-with-libcxx-headers
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# We can't just use $(shell command -v clang) because GNU Make handles builtins
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# in a special way and doesn't know that `command` is a POSIX-standard builtin
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# prior to 1af314465e5dfe3e8baa839a32a72e83c04f26ef, first released in v4.2.90.
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# At the time of writing, GNU Make v4.2.1 is still being used in supported
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# distro releases.
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#
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# Source: https://lists.gnu.org/archive/html/bug-make/2017-11/msg00017.html
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clang_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang")
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clangxx_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang++")
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darwin_AR=$(shell $(SHELL) $(.SHELLFLAGS) "command -v llvm-ar")
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darwin_DSYMUTIL=$(shell $(SHELL) $(.SHELLFLAGS) "command -v dsymutil")
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darwin_NM=$(shell $(SHELL) $(.SHELLFLAGS) "command -v llvm-nm")
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darwin_OBJDUMP=$(shell $(SHELL) $(.SHELLFLAGS) "command -v llvm-objdump")
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darwin_RANLIB=$(shell $(SHELL) $(.SHELLFLAGS) "command -v llvm-ranlib")
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darwin_STRIP=$(shell $(SHELL) $(.SHELLFLAGS) "command -v llvm-strip")
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# Flag explanations:
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#
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# -mlinker-version
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#
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# Ensures that modern linker features are enabled. See here for more
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# details: https://github.com/bitcoin/bitcoin/pull/19407.
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#
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# -isysroot$(OSX_SDK) -nostdlibinc
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#
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# Disable default include paths built into the compiler as well as
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# those normally included for libc and libc++. The only path that
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# remains implicitly is the clang resource dir.
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#
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# -iwithsysroot / -iframeworkwithsysroot
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#
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# Adds the desired paths from the SDK
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#
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# -platform_version
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#
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# Indicate to the linker the platform, the oldest supported version,
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# and the SDK used.
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#
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# -no_adhoc_codesign
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#
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# Disable adhoc codesigning (for now) when using LLVM tooling, to avoid
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# non-determinism issues with the Identifier field.
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darwin_CC=$(clang_prog) --target=$(host) \
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-isysroot$(OSX_SDK) -nostdlibinc \
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-iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks
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darwin_CXX=$(clangxx_prog) --target=$(host) \
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-isysroot$(OSX_SDK) -nostdlibinc \
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-iwithsysroot/usr/include/c++/v1 \
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-iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks
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darwin_CFLAGS=-pipe -std=$(C_STANDARD) -mmacos-version-min=$(OSX_MIN_VERSION)
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darwin_CXXFLAGS=-pipe -std=$(CXX_STANDARD) -mmacos-version-min=$(OSX_MIN_VERSION)
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darwin_LDFLAGS=-Wl,-platform_version,macos,$(OSX_MIN_VERSION),$(OSX_SDK_VERSION)
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ifneq ($(build_os),darwin)
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darwin_CFLAGS += -mlinker-version=$(LLD_VERSION)
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darwin_CXXFLAGS += -mlinker-version=$(LLD_VERSION)
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darwin_LDFLAGS += -Wl,-no_adhoc_codesign -fuse-ld=lld
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endif
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darwin_release_CFLAGS=-O2
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darwin_release_CXXFLAGS=$(darwin_release_CFLAGS)
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darwin_debug_CFLAGS=-O1 -g
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darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
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darwin_cmake_system_name=Darwin
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# Darwin version, which corresponds to OSX_MIN_VERSION.
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# See https://en.wikipedia.org/wiki/Darwin_(operating_system)
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darwin_cmake_system_version=20.1
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