Try to fix a compiler warning

diff --git a/src/extras/libc.c b/src/extras/libc.c
index 152053c29dce272e70755227d25769775a474bfa..d6691fdf29c3563ffb698fbe1d6b783f39e0ebc7 100644 (file)
--- a/src/extras/libc.c
+++ b/src/extras/libc.c
@@ -117,7 +117,7 @@ char *vlc_strndup( const char *string, size_t n )
 size_t vlc_strnlen( const char *psz, size_t n )
 {
     const char *psz_end = memchr( psz, 0, n );
-    return psz_end ? ( psz_end - psz ) : n;
+    return psz_end ? (size_t)( psz_end - psz ) : n;
 }
 #endif