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| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2015-02-10 00:45:11 -0200 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2015-02-10 00:45:42 -0200 |
| commit | e6307200af74d1556466522216e8ae77b7c8b843 (patch) | |
| tree | 752e3ed562011f36ea380ac1ed1766974c9c1bb5 /configure.ac | |
| parent | ba52c77e04b0f2d5a9ebee147f4445ac8b1f2b2a (diff) | |
| download | kmod-e6307200af74d1556466522216e8ae77b7c8b843.tar.gz | |
build: check for required builtin functions
These builtins are implemented by both gcc and clang since a long time
and we don't provide fallback for them. Let the configure phase check
for them.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 3dde5d9..30eea86 100644 --- a/configure.ac +++ b/configure.ac @@ -47,6 +47,9 @@ AC_CHECK_FUNCS_ONCE(__xstat) AC_CHECK_FUNCS_ONCE([__secure_getenv secure_getenv]) AC_CHECK_FUNCS_ONCE([finit_module]) +CC_CHECK_FUNC_BUILTIN([__builtin_clz]) +CC_CHECK_FUNC_BUILTIN([__builtin_types_compatible_p]) + # dietlibc doesn't have st.st_mtim struct member AC_CHECK_MEMBERS([struct stat.st_mtim], [], [], [#include <sys/stat.h>]) |