diff options
Diffstat (limited to 'mesonbuild/compilers/c.py')
| -rw-r--r-- | mesonbuild/compilers/c.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/mesonbuild/compilers/c.py b/mesonbuild/compilers/c.py index 4cc966054..99bdc6c52 100644 --- a/mesonbuild/compilers/c.py +++ b/mesonbuild/compilers/c.py @@ -656,7 +656,7 @@ class CCompiler(Compiler): # glibc defines functions that are not available on Linux as stubs that # fail with ENOSYS (such as e.g. lchmod). In this case we want to fail # instead of detecting the stub as a valid symbol. - # We already included limits.h earlier to ensure that these are defined + # We also include limits.h to ensure that these are defined # for stub functions. stubs_fail = ''' #if defined __stub_{func} || defined __stub___{func} @@ -693,9 +693,10 @@ class CCompiler(Compiler): # can just directly use the __has_builtin() macro. fargs['no_includes'] = '#include' not in prefix t = '''{prefix} + #include <limits.h> int main() {{ #ifdef __has_builtin - #if !__has_builtin(__builtin_{func}) + #if !__has_builtin({func}) #error "__builtin_{func} not found" #endif #elif ! defined({func}) @@ -706,8 +707,11 @@ class CCompiler(Compiler): * give them a workaround. */ #if {no_includes:d} __builtin_{func}; + // See above for why this is needed + #elif defined(__stub_{func}) || defined(_stub__{func}) + #error "unusable function {func}" #else - #error "No definition for __builtin_{func} found in the prefix" + {func}; #endif #endif }}''' |