--- a/mercurial/parsers.c	Fri Aug 21 14:29:42 2015 -0400
+++ b/mercurial/parsers.c	Fri Aug 21 14:33:51 2015 -0400
@@ -705,8 +705,8 @@
 	PyObject *headrevs;    /* cache, invalidated on changes */
 	PyObject *filteredrevs;/* filtered revs set */
 	nodetree *nt;          /* base-16 trie */
-	int ntlength;          /* # nodes in use */
-	int ntcapacity;        /* # nodes allocated */
+	unsigned ntlength;          /* # nodes in use */
+	unsigned ntcapacity;        /* # nodes allocated */
 	int ntdepth;           /* maximum depth of tree */
 	int ntsplits;          /* # splits performed */
 	int ntrev;             /* last rev scanned */