[1.1.X] Fixed #11609 -- The `check_pointer` error checking routine and...

[1.1.X] Fixed #11609 -- The `check_pointer` error checking routine and `GDALBase._set_ptr` are now able to handle the long pointer addresses used by some x86_64 platforms. Thanks, rmkemker, for the bug report.

Backport of r12006 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@12007 bcc190cf-cafb-0310-a4f2-bffc1f526a37