fix tsan

include(CMakePushCheckState)

include(CheckIncludeFileCXX)

# If we're not cross-compiling, try to run test executables.

# Otherwise, assume that compile + link is a sufficient check.

if (CMAKE_CROSSCOMPILING)

# If we're not cross-compiling, try to run test executables. Sanitizer runtime

# checks are not reliable during configuration (for example, ThreadSanitizer

# may reject the build environment), so use compile and link checks there too.

string(CONCAT _filesystem_check_flags

    " "

    "${CMAKE_CXX_FLAGS}"

    " ${CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}}"

    " ${CMAKE_EXE_LINKER_FLAGS}"

    " ${CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE}}"

)

if (CMAKE_CROSSCOMPILING OR

    _filesystem_check_flags MATCHES "(^|[ ;])-fsanitize=[^ ;]+")

    include(CheckCXXSourceCompiles)

    macro(_cmcm_check_cxx_source code var)

        check_cxx_source_compiles("${code}" ${var})