py-cffi: Do not attempt to peek past pkg-config on Darwin/FreeBSD


(nia)

$NetBSD: patch-setup.py,v 1.1 2024/03/19 10:49:46 nia Exp $

Nope, we want the one from pkgsrc. Honour pkg-config.

Also, -iwithsysroot is not supported by all compilers.

--- setup.py.orig	2024-03-19 10:46:00.000000000 +0000
+++ setup.py
@@ -148,14 +148,6 @@ else:
     ask_supports_thread()
     ask_supports_sync_synchronize()
 
-if 'darwin' in sys.platform:
-    # priority is given to `pkg_config`, but always fall back on SDK's libffi.
-    extra_compile_args += ['-iwithsysroot/usr/include/ffi']
-
-if 'freebsd' in sys.platform:
-    include_dirs.append('/usr/local/include')
-    library_dirs.append('/usr/local/lib')
-
 forced_extra_objs = os.environ.get('CFFI_FORCE_STATIC', [])
 if forced_extra_objs:
     forced_extra_objs = forced_extra_objs.split(';')