More Valgrind support. New option --vg-debug which turns on

Valgrind protection of free blocks. This works independently
of --gc-debug.

1 files changed, 3 insertions, 0 deletions

diff --git a/txr.h b/txr.h
index d230cd28..36f29715 100644
--- a/txr.h
+++ b/txr.h
@@ -28,6 +28,9 @@ extern int opt_loglevel;
 extern int opt_nobindings;
 extern int opt_arraydims;
 extern int opt_gc_debug;
+#ifdef HAVE_VALGRIND
+extern int opt_vg_debug;
+#endif
 extern const wchar_t *version;
 extern const wchar_t *progname;
 extern int output_produced;