Issue #14018: Fix OS X Tcl/Tk framework checking when using OS X SDKs.

Misc/NEWS

@@ -309,6 +309,8 @@ Tests
 Build
 -----
 
+- Issue #14018: Fix OS X Tcl/Tk framework checking when using OS X SDKs.
+
 - Issue #8767: Restore building with --disable-unicode.
   Patch by Stefano Taschini.
 

setup.py

@@ -48,6 +48,9 @@ def is_macosx_sdk_path(path):
     Returns True if 'path' can be located in an OSX SDK
     """
     return (path.startswith('/usr/') and not path.startswith('/usr/local')) or path.startswith('/System/')
+    return ( (path.startswith('/usr/') and not path.startswith('/usr/local'))
+                or path.startswith('/System/')
+                or path.startswith('/Library/') )
 
 def find_file(filename, std_dirs, paths):
     """Searches for the directory where a given file is located,