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-rw-r--r--Modules/CheckCXXCompilerFlag.cmake1
1 files changed, 1 insertions, 0 deletions
diff --git a/Modules/CheckCXXCompilerFlag.cmake b/Modules/CheckCXXCompilerFlag.cmake
index 7785148..3da04b4 100644
--- a/Modules/CheckCXXCompilerFlag.cmake
+++ b/Modules/CheckCXXCompilerFlag.cmake
@@ -28,6 +28,7 @@ MACRO (CHECK_CXX_COMPILER_FLAG _FLAG _RESULT)
CHECK_CXX_SOURCE_COMPILES("int main() { return 0;}" ${_RESULT}
# Some compilers do not fail with a bad flag
FAIL_REGEX "unrecognized .*option" # GNU
+ FAIL_REGEX "unknown .*option" # Clang
FAIL_REGEX "ignoring unknown option" # MSVC
FAIL_REGEX "warning D9002" # MSVC, any lang
FAIL_REGEX "[Uu]nknown option" # HP