fix: remove clang-cl compilation warning

- MP flag only applies to cl, not cl frontends to other compilers (e.g. clang-cl, icx-cl etc).
google · Dec 28, 2024 · cdefc54 · cdefc54
1 parent f4f93b5
commit cdefc54
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -147,7 +147,12 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 if (MSVC)
   # Turn compiler warnings up to 11
   string(REGEX REPLACE "[-/]W[1-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /MP")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+
+  # MP flag only applies to cl, not cl frontends to other compilers (e.g. clang-cl, icx-cl etc)
+  if(CMAKE_CXX_COMPILER_ID MATCHES MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
+  endif()
   add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 
   if(BENCHMARK_ENABLE_WERROR)