Fix for unbounded memory growth problem reproduced with GCC 4.4.1

on 32 bit x86 Fedora. This happens because the lazy list variable
``data'' in the match_files function is optimized to a register,
but a stale value of that variable persists in the backing storage.

1 files changed, 2 insertions, 0 deletions

diff --git a/gc.h b/gc.h
index 760f7f1f..d2fa038d 100644
--- a/gc.h
+++ b/gc.h
@@ -34,3 +34,5 @@ int gc_state(int);
 void gc_mark(val);
 int gc_is_reachable(val);
 void unmark(void);
+void gc_hint_func(val *);
+#define gc_hint(var) gc_hint_func(&var)