diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 67c0b70..a157666 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -245,11 +245,17 @@ if (BENCHMARK_USE_LIBCXX) endif() endif(BENCHMARK_USE_LIBCXX) +set(EXTRA_CXX_FLAGS "") +if (WIN32 AND "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") + # Clang on Windows fails to compile the regex feature check under C++11 + set(EXTRA_CXX_FLAGS "-DCMAKE_CXX_STANDARD=14") +endif() + # C++ feature checks # Determine the correct regular expression engine to use -cxx_feature_check(STD_REGEX) -cxx_feature_check(GNU_POSIX_REGEX) -cxx_feature_check(POSIX_REGEX) +cxx_feature_check(STD_REGEX ${EXTRA_CXX_FLAGS}) +cxx_feature_check(GNU_POSIX_REGEX ${EXTRA_CXX_FLAGS}) +cxx_feature_check(POSIX_REGEX ${EXTRA_CXX_FLAGS}) if(NOT HAVE_STD_REGEX AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX) message(FATAL_ERROR "Failed to determine the source files for the regular expression backend") endif() @@ -257,6 +263,7 @@ if (NOT BENCHMARK_ENABLE_EXCEPTIONS AND HAVE_STD_REGEX AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX) message(WARNING "Using std::regex with exceptions disabled is not fully supported") endif() + cxx_feature_check(STEADY_CLOCK) # Ensure we have pthreads set(THREADS_PREFER_PTHREAD_FLAG ON) |