From b74e204f60de97245539398db20bc1ab8e2152de Mon Sep 17 00:00:00 2001
From: tarek <none@none>
Date: Thu, 10 Dec 2009 13:30:30 +0100
Subject: fixed the MacPorts failure when platform.mac_ver() fails - fixes #92

--HG--
branch : distribute
extra : rebase_source : b8bf9830479ce1433cf6c0b0c97c628a2876675c
---
 pkg_resources.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'pkg_resources.py')

diff --git a/pkg_resources.py b/pkg_resources.py
index 70a32710..46841631 100644
--- a/pkg_resources.py
+++ b/pkg_resources.py
@@ -186,6 +186,16 @@ def _macosx_vers(_cache=[]):
     if not _cache:
         import platform
         version = platform.mac_ver()[0]
+        # fallback for MacPorts
+        if version == '':
+            import re
+            version_file = '/System/Library/CoreServices/SystemVersion.plist'
+            version_regexp = r'<key>ProductVersion</key>\n\t<string>(.*?)</string>'
+            if os.path.exists(version_file):
+                osx_version = open(version_file).read()
+                osx_version = re.findall(version_regexp, osx_version, re.M)
+                if len(osx_version) > 0:
+                    version = osx_version[0]
         _cache.append(version.split('.'))
     return _cache[0]
 
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