--- setupext.py.orig	2014-08-25 21:24:27.000000000 -0500
+++ setupext.py	2014-09-18 06:38:30.000000000 -0500
@@ -1494,6 +1494,18 @@
             ext.library_dirs.extend([os.path.join(sys.prefix, 'dlls')])
 
         elif sys.platform == 'darwin':
+            tcl_lib_dir = tk_lib_dir = os.path.join(get_base_dirs()[0], 'lib')
+            result = self.parse_tcl_config(tcl_lib_dir, tk_lib_dir)
+            if result is None:
+                raise SystemExit("Tcl/Tk not found, aborting")
+
+            (tcl_lib_dir, tcl_inc_dir, tcl_lib,
+             tk_lib_dir, tk_inc_dir, tk_lib) = result
+            ext.include_dirs.extend([tcl_inc_dir, tk_inc_dir])
+            ext.library_dirs.extend([tcl_lib_dir, tk_lib_dir])
+            ext.libraries.extend([tcl_lib, tk_lib])
+
+            return
             # this config section lifted directly from Imaging - thanks to
             # the effbot!
 
@@ -1735,6 +1747,9 @@
     name = "gtk3agg"
 
     def check_requirements(self):
+        if self.get_config() is False:
+            raise CheckFailed("skipping due to configuration")
+
         if 'TRAVIS' in os.environ:
             raise CheckFailed("Can't build with Travis")
 
@@ -1800,6 +1815,9 @@
     name = "gtk3cairo"
 
     def check_requirements(self):
+        if self.get_config() is False:
+            raise CheckFailed("skipping due to configuration")
+
         if 'TRAVIS' in os.environ:
             raise CheckFailed("Can't build with Travis")
 
@@ -1828,6 +1846,9 @@
     name = "wxagg"
 
     def check_requirements(self):
+        if self.get_config() is False:
+            raise CheckFailed("skipping due to configuration")
+
         try:
             import wxversion
         except ImportError:
@@ -2031,6 +2052,9 @@
     name = "cairo"
 
     def check_requirements(self):
+        if self.get_config() is False:
+            raise CheckFailed("skipping due to configuration")
+
         try:
             import cairocffi
         except ImportError: