Fix gcc warning in Release build.
diff --git a/md4c/md4c.c b/md4c/md4c.c
index 184ce7c..927a046 100644
--- a/md4c/md4c.c
+++ b/md4c/md4c.c
@@ -2740,7 +2740,7 @@ md_resolve_links(MD_CTX* ctx, const MD_LINE* lines, int n_lines)
} else {
if(closer->end < ctx->size && CH(closer->end) == _T('(')) {
/* Might be inline link. */
- OFF inline_link_end;
+ OFF inline_link_end = -1;
is_link = md_is_inline_link_spec(ctx, lines, n_lines, closer->end, &inline_link_end, &attr);
if(is_link < 0)