fix various warnings

1 files changed, 0 insertions, 1 deletions

diff --git a/ir/stack.c b/ir/stack.c
index 45023d1..1dc29cd 100644
--- a/ir/stack.c
+++ b/ir/stack.c
@@ -3,7 +3,6 @@
 void
 lowerstack(struct function *fn)
 {
-   extern int ninstr;
    fn->stksiz = 0;
    FREQUIRE(FNUSE);