be more liberal in include handling, namely we only error out if it's

the end of the last included file AND we still have a macro to expand.
autoconf uses this in wine, and it turns out other m4 also do things that
way (not only gnu m4).

okay fries@, millert@

diff --git a/usr.bin/m4/main.c b/usr.bin/m4/main.c
index 064db65..b85ac98 100644 (file)
--- a/usr.bin/m4/main.c
+++ b/usr.bin/m4/main.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: main.c,v 1.74 2006/03/24 08:03:44 espie Exp $ */
+/*     $OpenBSD: main.c,v 1.75 2008/08/16 12:19:49 espie Exp $ */
 /*     $NetBSD: main.c,v 1.12 1997/02/08 23:54:49 cgd Exp $    */
 
 /*-
@@ -408,7 +408,7 @@ macro(void)
                                }
                        }
                } else if (t == EOF) {
-                       if (sp > -1) {
+                       if (sp > -1 && ilevel <= 0) {
                                warnx( "unexpected end of input, unclosed parenthesis:");
                                dump_stack(paren, PARLEV);
                                exit(1);