--- setup.py.orig	2020-06-28 02:08:48.000000000 -0700
+++ setup.py	2020-06-28 02:08:59.000000000 -0700
@@ -59,7 +59,7 @@
 osx_has_gss_framework = False
 if sys.platform == 'darwin':
     mac_ver = [int(v) for v in platform.mac_ver()[0].split('.')]
-    osx_has_gss_framework = (mac_ver >= [10, 7, 0])
+    osx_has_gss_framework = (mac_ver >= [10, 9, 0])
 
 winkrb_path = None
 if os.name == 'nt':
@@ -199,7 +199,7 @@
                     if winkrb_path:
                         main_path = os.path.join(winkrb_path, 'bin')
                 else:
-                    main_lib = 'lib%s.so' % opt
+                    main_lib = 'lib%s.dylib' % opt
         for opt in link_args:
             # To support Heimdal on Debian, read the linker path.
             if opt.startswith('-Wl,/'):