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| -rw-r--r-- | Lib/distutils/ccompiler.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py index 46fb743..751ec06 100644 --- a/Lib/distutils/ccompiler.py +++ b/Lib/distutils/ccompiler.py @@ -883,6 +883,51 @@ class CCompiler: """ raise NotImplementedError + def has_function(self, funcname, + includes=None, + include_dirs=None, + libraries=None, + library_dirs=None): + """Return a boolean indicating whether funcname is supported on + the current platform. The optional arguments can be used to + augment the compilation environment. + """ + + # this can't be included at module scope because it tries to + # import math which might not be available at that point - maybe + # the necessary logic should just be inlined? + import tempfile + if includes is None: + includes = [] + if include_dirs is None: + include_dirs = [] + if libraries is None: + libraries = [] + if library_dirs is None: + library_dirs = [] + fd, fname = tempfile.mkstemp(".c", funcname, text=True) + f = os.fdopen(fd, "w") + for incl in includes: + f.write("""#include "%s"\n""" % incl) + f.write("""\ +main (int argc, char **argv) { + %s(); +} +""" % funcname) + f.close() + try: + objects = self.compile([fname], include_dirs=include_dirs) + except CompileError: + return False + + try: + self.link_executable(objects, "a.out", + libraries=libraries, + library_dirs=library_dirs) + except (LinkError, TypeError): + return False + return True + def find_library_file (self, dirs, lib, debug=0): """Search the specified list of directories for a static or shared library file 'lib' and return the full path to that file. If |