[pygobject] _pygi_marshal_from_py_uint64(): Use correct data type in py2.7 check

[Martin Pitt <martinpitt src gnome org>]

commit 1bfcd5d94b71edc9f03c8b3e87952a8bc8097586
Author: Alban Browaeys <prahal yahoo com>
Date:   Thu Sep 27 22:44:22 2012 +0200

    _pygi_marshal_from_py_uint64(): Use correct data type in py2.7 check
    
    Casting an unsigned to signed and checking if positive was not good. Check the
    unsigned 64 is below G_MAXUINT64 instead.
    
    Side issue in https://bugzilla.gnome.org/show_bug.cgi?id=685000

 gi/pygi-marshal-from-py.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gi/pygi-marshal-from-py.c b/gi/pygi-marshal-from-py.c
index d3e61da..45a9892 100644
--- a/gi/pygi-marshal-from-py.c
+++ b/gi/pygi-marshal-from-py.c
@@ -565,8 +565,8 @@ _pygi_marshal_from_py_uint64 (PyGIInvokeState   *state,
 
 #if PY_VERSION_HEX < 0x03000000
     if (PyInt_Check (py_long)) {
-        gint64 long_ = (gint64) PyInt_AsLong (py_long);
-        if (long_ < 0) {
+        guint64 long_ = (guint64) PyInt_AsLong (py_long);
+        if (long_ > G_MAXUINT64) {
             PyErr_Format (PyExc_ValueError, "%" G_GUINT64_FORMAT " not in range %d to %" G_GUINT64_FORMAT,
                           (gint64) long_, 0, G_MAXUINT64);
             return FALSE;