Use distutils. Took me a while to figure out these lines.

1 files changed, 33 insertions, 0 deletions

diff --git a/cffi/ffiplatform.py b/cffi/ffiplatform.py
index e248f7f..3d144f7 100644
--- a/cffi/ffiplatform.py
+++ b/cffi/ffiplatform.py
@@ -29,3 +29,36 @@ def tmpdir():
             pass
         _tmpdir = os.path.abspath('__pycache__')
     return _tmpdir
+
+
+def compile(tmpdir, modname, **kwds):
+    """Compile a C extension module using distutils."""
+
+    saved_environ = os.environ.copy()
+    saved_path = os.getcwd()
+    try:
+        os.chdir(tmpdir)
+        outputfilename = _build(modname, kwds)
+        outputfilename = os.path.abspath(outputfilename)
+    finally:
+        os.chdir(saved_path)
+        # workaround for a distutils bugs where some env vars can
+        # become longer and longer every time it is used
+        for key, value in saved_environ.items():
+            if os.environ.get(key) != value:
+                os.environ[key] = value
+    return outputfilename
+
+def _build(modname, kwds):
+    # XXX compact but horrible :-(
+    from distutils.core import Distribution, Extension
+    ext = Extension(name=modname, sources=[modname + '.c'], **kwds)
+    dist = Distribution({'ext_modules': [ext]})
+    options = dist.get_option_dict('build_ext')
+    options['force'] = ('ffiplatform', True)
+    #
+    dist.run_command('build_ext')
+    #
+    cmd_obj = dist.get_command_obj('build_ext')
+    [soname] = cmd_obj.get_outputs()
+    return soname