CMake/Tests/CompileFeatures/default_dialect.c
Stephen Kelly a3d0ae1758 Features: Fix the default C dialect for Clang and GNU.
Clang 3.4 uses C99 by default, and Clang 3.6 uses C11 by default:

 http://thread.gmane.org/gmane.comp.compilers.clang.devel/39379

GNU 4.9 uses C90 by default, and GNU 5.0 uses C11 by default:

 https://gcc.gnu.org/gcc-5/changes.html

Test that the default compiler settings result in the expected dialect
macros being defined for both C and CXX.  Remove the unused main.c
file from the CompileFeatures unit test.
2014-11-20 18:24:59 +01:00

23 lines
410 B
C

#if DEFAULT_C11
# if __STDC_VERSION__ != 201112L
# error Unexpected value for __STDC_VERSION__.
# endif
#elif DEFAULT_C99
# if __STDC_VERSION__ != 199901L
# error Unexpected value for __STDC_VERSION__.
# endif
#else
# if !DEFAULT_C90
# error Buildsystem error
# endif
# if defined(__STDC_VERSION__)
# error Unexpected __STDC_VERSION__ definition
# endif
#endif
int main()
{
return 0;
}