From d48662d49650099e5ab9e1fe218311a18c2ff73a Mon Sep 17 00:00:00 2001
From: grischka <grischka>
Date: Thu, 5 May 2016 20:04:00 +0200
Subject: tccgen: scopes levels for local symbols (update 1)

Catch top level redeclarations too.

Also fix mistakes in tcctest.c and the tcc sources (win32)
showing up now.
---
 tccgen.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'tccgen.c')

diff --git a/tccgen.c b/tccgen.c
index 042fb92..6954d3a 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -239,11 +239,10 @@ ST_FUNC Sym *sym_push(int v, CType *type, int r, int c)
             ps = &ts->sym_identifier;
         s->prev_tok = *ps;
         *ps = s;
-        if (local_scope) {
-            s->scope = local_scope;
-            if (s->prev_tok && s->prev_tok->scope == s->scope)
-                tcc_error("redeclaration of '%s'", get_tok_str(v & ~SYM_STRUCT, NULL));
-        }
+        s->scope = local_scope;
+        if (s->prev_tok && s->prev_tok->scope == s->scope)
+            tcc_error("redeclaration of '%s'",
+                get_tok_str(v & ~SYM_STRUCT, NULL));
     }
     return s;
 }
@@ -2929,6 +2928,8 @@ static void struct_decl(CType *type, AttributeDef *ad, int u)
             expect("struct/union/enum name");
         s = struct_find(v);
         if (s && s->type.t == a) {
+            if (0 == local_scope)
+                goto do_decl; /* compatibility with past behavior */
             if (tok != '{' && tok != ';')
                 goto do_decl; /* variable declaration: 'struct s x;' */
             if (s->scope == local_scope && (s->c == -1 || tok != '{'))
-- 
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