apparently #0 is a valid builtin number, used for some NULL funcs

diff --git a/parser.c b/parser.c
index 3e1bad925b4fccc312840d91cd33625fb47ba74b..32199740f6ab2a84d56d110021d452f25f9a7f47 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -3952,7 +3952,7 @@ skipvar:
                 parseerror(parser, "builtin number must be an integer constant");
                 break;
             }
-            if (parser_token(parser)->constval.i <= 0) {
+            if (parser_token(parser)->constval.i < 0) {
                 parseerror(parser, "builtin number must be an integer greater than zero");
                 break;
             }