(duplicate_decls):

If redeclaring builtin function, use new declaration's types. From-SVN: r1228

(duplicate_decls):
If redeclaring builtin function, use new declaration's types. From-SVN: r1228
52b6a22f · Richard Stallman · e841f997 · 52b6a22f
Commit 52b6a22f authored Jun 21, 1992 by Richard Stallman
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gcc/c-decl.c
+5 -1

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--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -1202,7 +1202,11 @@ duplicate_decls (newdecl, olddecl)
 	  return 0;
 	}
      else if (!types_match)
-	warning_with_decl (newdecl, "conflicting types for built-in function `%s'");
+	{
+	  /* If types don't match for a built-in, throw away the built-in.  */
+	  warning_with_decl (newdecl, "conflicting types for built-in function `%s'");
+	  return 0;
+	}
    }
  else if (TREE_CODE (olddecl) == FUNCTION_DECL
 	   && DECL_SOURCE_LINE (olddecl) == 0)