Fix Mac OS X Snow Leopard build

direct/src/showbase/PythonUtil.py

@@ -38,7 +38,6 @@ import os
 import sys
 import random
 import time
-import importlib
 
 __report_indent = 3
 
@@ -61,6 +60,42 @@ def Functor(function, *args, **kArgs):
     return functor
 """
 
+try:
+    import importlib
+except ImportError:
+    # Backward compatibility for Python 2.6.
+    def _resolve_name(name, package, level):
+        if not hasattr(package, 'rindex'):
+            raise ValueError("'package' not set to a string")
+        dot = len(package)
+        for x in xrange(level, 1, -1):
+            try:
+                dot = package.rindex('.', 0, dot)
+            except ValueError:
+                raise ValueError("attempted relative import beyond top-level "
+                                  "package")
+        return "%s.%s" % (package[:dot], name)
+
+    def import_module(name, package=None):
+        if name.startswith('.'):
+            if not package:
+                raise TypeError("relative imports require the 'package' argument")
+            level = 0
+            for character in name:
+                if character != '.':
+                    break
+                level += 1
+            name = _resolve_name(name[level:], package, level)
+        __import__(name)
+        return sys.modules[name]
+
+    imp = import_module('imp')
+    importlib = imp.new_module("importlib")
+    importlib._resolve_name = _resolve_name
+    importlib.import_module = import_module
+    sys.modules['importlib'] = importlib
+
+
 class Functor:
     def __init__(self, function, *args, **kargs):
         assert callable(function), "function should be a callable obj"

makepanda/makepanda.py

@@ -4599,7 +4599,7 @@ if (GetTarget() == 'darwin' and PkgSkip("COCOA")==0 and PkgSkip("GL")==0 and not
   if (PkgSkip('PANDAFX')==0):
     TargetAdd('libpandagl.dll', input='libpandafx.dll')
   TargetAdd('libpandagl.dll', input=COMMON_PANDA_LIBS)
-  TargetAdd('libpandagl.dll', opts=['MODULE', 'GL', 'NVIDIACG', 'CGGL', 'COCOA'])
+  TargetAdd('libpandagl.dll', opts=['MODULE', 'GL', 'NVIDIACG', 'CGGL', 'COCOA', 'CARBON'])
 
 #
 # DIRECTORY: panda/src/osxdisplay/

makepanda/makepandacore.py

@@ -2002,6 +2002,11 @@ def SdkLocatePython(prefer_thirdparty_python=False):
          SDK["PYTHONVERSION"] = "python" + ver
          SDK["PYTHONEXEC"] = "/System/Library/Frameworks/Python.framework/Versions/" + ver + "/bin/python" + ver
 
+         # Avoid choosing the one in the thirdparty package dir.
+         PkgSetCustomLocation("PYTHON")
+         IncDirectory("PYTHON", py_fwx + "/include")
+         LibDirectory("PYTHON", "%s/usr/lib" % (SDK.get("MACOSX", "")))
+
          if sys.version[:3] != ver:
              print("Warning: building with Python %s instead of %s since you targeted a specific Mac OS X version." % (ver, sys.version[:3]))