diff options
| -rw-r--r-- | llvm/cmake/modules/CheckAtomic.cmake | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/llvm/cmake/modules/CheckAtomic.cmake b/llvm/cmake/modules/CheckAtomic.cmake index 2ed48197728..30a5e311292 100644 --- a/llvm/cmake/modules/CheckAtomic.cmake +++ b/llvm/cmake/modules/CheckAtomic.cmake @@ -2,9 +2,13 @@ INCLUDE(CheckCXXSourceCompiles) -check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_LIBATOMIC) -if (HAVE_LIBATOMIC) - list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic") +check_function_exists(__atomic_fetch_add_4 HAVE___ATOMIC_FETCH_ADD_4) +if( NOT HAVE___ATOMIC_FETCH_ADD_4 ) + check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_LIBATOMIC) + set(HAVE_LIBATOMIC False) + if( HAVE_LIBATOMIC ) + list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic") + endif() endif() CHECK_CXX_SOURCE_COMPILES(" |
