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| author | Brad King <brad.king@kitware.com> | 2011-08-08 16:53:17 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2011-08-08 16:53:17 (GMT) |
| commit | ed6be501de960a21fc756d08e9a0a2318f276307 (patch) | |
| tree | efe016c3eb92719e2b1cc04846065c7b656e41ff /Modules/CheckCXXCompilerFlag.cmake | |
| parent | 0e28009184cdb3ff375bc49142726afaa001ddeb (diff) | |
| download | CMake-ed6be501de960a21fc756d08e9a0a2318f276307.zip CMake-ed6be501de960a21fc756d08e9a0a2318f276307.tar.gz CMake-ed6be501de960a21fc756d08e9a0a2318f276307.tar.bz2 | |
Fix CHECK_(C|CXX)_COMPILER_FLAG for Clang (#12394)
This compiler warns and returns 0 for unrecognized flags. We fix the
compiler flag check macros by looking for a warning in the output.
Diffstat (limited to 'Modules/CheckCXXCompilerFlag.cmake')
| -rw-r--r-- | Modules/CheckCXXCompilerFlag.cmake | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Modules/CheckCXXCompilerFlag.cmake b/Modules/CheckCXXCompilerFlag.cmake index 788bf35..f646e78 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 |