为什么 make 会生成与复制粘贴并手动输入的相同命令不同的目标文件？
Why might make produce a different object file than the same command copy-pasted and entered manually?
与我的另一个问题 有点相关，因为这也是关于构建 llvm 的。
当试图绕过 llvm 中的构建失败时，我注意到以下几点：
通过make构建单个目标文件时在终端中的输出：
rp% make asan_posix.o
cd /tmp/llvm20150917-93899-y384cu && /Applications/Xcode-beta.app/Contents/Developer/usr/bin/make -f projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/build.make projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
Building CXX object projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mios-simulator-version-min=7.0 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.1.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
cd /tmp/llvm20150917-93899-y384cu && /Applications/Xcode-beta.app/Contents/Developer/usr/bin/make -f projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/build.make projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
Building CXX object projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mmacosx-version-min=10.9 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% file CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o: Mach-O 64-bit object x86_64
rp% file CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o: Mach-O 64-bit object x86_64
手动输入相同命令时的输出：
rp% cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mios-simulator-version-min=7.0 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.1.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mmacosx-version-min=10.9 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% file CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o: Mach-O universal binary with 2 architectures
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o (for architecture i386): Mach-O object i386
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o (for architecture x86_64): Mach-O 64-bit object x86_64
rp% file CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o: Mach-O universal binary with 2 architectures
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o (for architecture i386): Mach-O object i386
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o (for architecture x86_64): Mach-O 64-bit object x86_64
我所做的搜索并没有真正帮助；我自己没有编写 makefile（cmake 生成），至少在我看来，make 没有理由打印它没有执行的内容。
有人知道发生了什么事吗？
复制步骤：
- 如果尚未安装 homebrew，请安装它
- 用 WIP 替换自制软件的 llvm 公式 here
- 运行
brew install llvm --with-clang --with-lldb --verbose --debug
- 等待构建失败，问你怎么办
- 调试 shell
- cd 到
projects/compiler-rt/lib/asan
- 运行
make clean
- 运行
make asan_posix.o（或 make help 中列出的任何其他 *.o 文件
- 运行
file 在输出文件上（对我来说是 CMakeFiles/RTAsan_dynamic.(osx|iossim).dir/asan_posix.cc.o）
- 重复以上 3 个步骤，但复制粘贴命令而不是 运行ning
make
编辑：在 shell 和制作过程中 Link 到我的 environment。
这个问题的解决方案最终与链接的问题相同。自制软件正在更改编译器标志，因此打印的命令不是正在执行的命令。另一个问题中的修复也恰好解决了这个问题。
与我的另一个问题
当试图绕过 llvm 中的构建失败时，我注意到以下几点：
通过make构建单个目标文件时在终端中的输出：
rp% make asan_posix.o
cd /tmp/llvm20150917-93899-y384cu && /Applications/Xcode-beta.app/Contents/Developer/usr/bin/make -f projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/build.make projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
Building CXX object projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mios-simulator-version-min=7.0 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.1.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
cd /tmp/llvm20150917-93899-y384cu && /Applications/Xcode-beta.app/Contents/Developer/usr/bin/make -f projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/build.make projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
Building CXX object projects/compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mmacosx-version-min=10.9 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% file CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o: Mach-O 64-bit object x86_64
rp% file CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o: Mach-O 64-bit object x86_64
手动输入相同命令时的输出：
rp% cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mios-simulator-version-min=7.0 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.1.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% cd /tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan && /usr/local/Library/ENV/4.3/clang++ -DASAN_DYNAMIC=1 -DASAN_HAS_EXCEPTIONS=1 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/llvm20150917-93899-y384cu/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan -I/tmp/llvm20150917-93899-y384cu/include -I/tmp/llvm20150917-93899-1jg6jdx/include -I/tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/.. -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -arch i386 -arch x86_64 -UNDEBUG -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 -Wall -std=c++11 -stdlib=libc++ -mmacosx-version-min=10.9 -isysroot /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fvisibility=hidden -fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -ftls-model=initial-exec -o CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o -c /tmp/llvm20150917-93899-1jg6jdx/projects/compiler-rt/lib/asan/asan_posix.cc
rp% file CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o: Mach-O universal binary with 2 architectures
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o (for architecture i386): Mach-O object i386
CMakeFiles/RTAsan_dynamic.iossim.dir/asan_posix.cc.o (for architecture x86_64): Mach-O 64-bit object x86_64
rp% file CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o: Mach-O universal binary with 2 architectures
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o (for architecture i386): Mach-O object i386
CMakeFiles/RTAsan_dynamic.osx.dir/asan_posix.cc.o (for architecture x86_64): Mach-O 64-bit object x86_64
我所做的搜索并没有真正帮助；我自己没有编写 makefile（cmake 生成），至少在我看来，make 没有理由打印它没有执行的内容。
有人知道发生了什么事吗？
复制步骤：
- 如果尚未安装 homebrew，请安装它
- 用 WIP 替换自制软件的 llvm 公式 here
- 运行
brew install llvm --with-clang --with-lldb --verbose --debug - 等待构建失败，问你怎么办
- 调试 shell
- cd 到
projects/compiler-rt/lib/asan - 运行
make clean - 运行
make asan_posix.o（或make help 中列出的任何其他 - 运行
file在输出文件上（对我来说是CMakeFiles/RTAsan_dynamic.(osx|iossim).dir/asan_posix.cc.o） - 重复以上 3 个步骤，但复制粘贴命令而不是 运行ning
make
*.o 文件
编辑：在 shell 和制作过程中 Link 到我的 environment。
这个问题的解决方案最终与链接的问题相同。自制软件正在更改编译器标志，因此打印的命令不是正在执行的命令。另一个问题中的修复也恰好解决了这个问题。