From a4ddca68662f4bc0531763357b4bc00b6c50b456 Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Sat, 13 Aug 2022 13:00:37 +0200
Subject: target

---
 bootstrap/env.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'bootstrap/env.c')

diff --git a/bootstrap/env.c b/bootstrap/env.c
index ff2929f..40392b9 100644
--- a/bootstrap/env.c
+++ b/bootstrap/env.c
@@ -33,6 +33,9 @@ envput(struct env *env, const struct decl *decl) {
 
    if ((d0 = envfind(&env_noparent, INT_MAX, decl->name))) {
       // modify existing forward declarations?
+      if (decl->t != d0->t)
+         return NULL;
+
       if (decl == d0 || !memcmp(d0, decl, sizeof *d0))
          return d0;
       if (d0->t == Ddef && decl->t == Ddef && !memcmp(&d0->var, &decl->var, sizeof d0->var))
-- 
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