Fixed compiler warning.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7612 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/exp-drd/drd_intercepts.c b/exp-drd/drd_intercepts.c
index ef65455..e41d51d 100644
--- a/exp-drd/drd_intercepts.c
+++ b/exp-drd/drd_intercepts.c
@@ -171,7 +171,7 @@
#if defined(_CS_GNU_LIBPTHREAD_VERSION)
/* Linux with a recent glibc. */
char buffer[256];
- int len;
+ unsigned len;
len = confstr(_CS_GNU_LIBPTHREAD_VERSION, buffer, sizeof(buffer));
assert(len <= sizeof(buffer));
return len > 0 && buffer[0] == 'l';