libmagic: Fix VS compat

diff --git a/ext/fileinfo/libmagic/apprentice.c b/ext/fileinfo/libmagic/apprentice.c
index 3b091101f6feb3f07dd70f60a4f9d02f76ec5bfc..c570c96e06f80a047739a45be1ca280d75fcd9e7 100644 (file)
--- a/ext/fileinfo/libmagic/apprentice.c
+++ b/ext/fileinfo/libmagic/apprentice.c
@@ -2220,7 +2220,7 @@ parse(struct magic_set *ms, struct magic_entry *me, const char *line,
  */
 private int
 parse_strength(struct magic_set *ms, struct magic_entry *me, const char *line,
-    size_t len __attribute__((__unused__)))
+    size_t len)
 {
        const char *l = line;
        char *el;