Scons: Update compare_versions() to ignore trailing charecters after an int. This is a fix for a mysql version number that includes a (E.g. 5.0.51a)

SConstruct

@@ -91,7 +91,7 @@ def compare_versions(v1, v2):
         if isinstance(v, (list,tuple)):
             return v
         elif isinstance(v, str):
-            return map(int, v.split('.'))
+            return map(lambda x: int(re.match('\d+', x).group()), v.split('.'))
         else:
             raise TypeError