diff options
Diffstat (limited to 'Modules/Compiler')
| -rw-r--r-- | Modules/Compiler/GNU-C-FeatureTests.cmake | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Modules/Compiler/GNU-C-FeatureTests.cmake b/Modules/Compiler/GNU-C-FeatureTests.cmake index dfaeebf..ddac0e8 100644 --- a/Modules/Compiler/GNU-C-FeatureTests.cmake +++ b/Modules/Compiler/GNU-C-FeatureTests.cmake @@ -1,7 +1,12 @@ set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407") -set(GNU46_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L") +# GNU 4.7 correctly sets __STDC_VERSION__ to 201112L, but GNU 4.6 sets it +# to 201000L. As the former is strictly greater than the latter, test only +# for the latter. If in the future CMake learns about a C feature which was +# introduced with GNU 4.7, that should test for the correct version, similar +# to the distinction between __cplusplus and __GXX_EXPERIMENTAL_CXX0X__ tests. +set(GNU46_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201000L") set(_cmake_feature_test_c_static_assert "${GNU46_C11}") # Since 4.4 at least: set(GNU44_C99 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L") |