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Revert "Build libSupport with -Werror=global-constructors (NFC)"

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This reverts commit beff86e8ff429f11da6fe37efde86d22ea636ed5.

The sanitizer-x86_64-linux bot is still broken.
This commit is contained in:
Mehdi Amini 2021-07-27 01:08:18 +00:00
parent 64c9fc2e9c
commit ac19c5a542
1 changed files with 0 additions and 21 deletions
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21
lib/Support/CMakeLists.txt
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@ -1,26 +1,5 @@
include(GetLibraryName)
# Ensure that libSupport does not carry any static global initializer.
# libSupport can be embedded in use cases where we don't want to load all
# cl::opt unless we want to parse the command line.
# ManagedStatic can be used to enable lazy-initialization of globals.
# We don't use `add_flag_if_supported` as instead of compiling an empty file we
# check if the current platform is able to compile global std::mutex with this
# flag (Linux can, Darwin can't for example).
check_cxx_compiler_flag("-Werror=global-constructors" HAS_WERROR_GLOBAL_CTORS)
if (HAS_WERROR_GLOBAL_CTORS)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=global-constructors")
CHECK_CXX_SOURCE_COMPILES("
#include <mutex>
static std::mutex TestGlobalCtorDtor;
static std::recursive_mutex TestGlobalCtorDtor2;
int main() { (void)TestGlobalCtorDtor; (void)TestGlobalCtorDtor2; return 0;}
" LLVM_HAS_NOGLOBAL_CTOR_MUTEX)
if (NOT LLVM_HAS_NOGLOBAL_CTOR_MUTEX)
string(REPLACE "-Werror=global-constructors" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
endif()
endif()
if(LLVM_ENABLE_ZLIB)
set(imported_libs ZLIB::ZLIB)
endif()