xlint(1) patch

[Bill Marquette]

Looks like lint won't run with gcc 3 w/out some tweaks.  Here's a
patch that allows lint to run (noisily) against itself, stolen from
OpenBSD; probably it ought to be sync'd again from NetBSD where it
came from, this at least allows it to "do something" again.
--Bill

Index: usr.bin/xlint/xlint/xlint.c
===================================================================
RCS file: /home/dcvs/src/usr.bin/xlint/xlint/xlint.c,v
retrieving revision 1.11
diff -u -r1.11 xlint.c
--- usr.bin/xlint/xlint/xlint.c	5 Apr 2005 08:19:35 -0000	1.11
+++ usr.bin/xlint/xlint/xlint.c	6 Jul 2006 22:59:29 -0000
@@ -308,9 +308,19 @@
	libs = xcalloc(1, sizeof (char *));
	libsrchpath = xcalloc(1, sizeof (char *));
-	appcstrg(&cppflags, "-lang-c");
+	appcstrg(&cppflags, "-x");
+	appcstrg(&cppflags, "c");
+	appcstrg(&cppflags, "-undef");
+	/* even with -undef cpp still identifies as GNUC */
+	appcstrg(&cppflags, "-U__GNUC__");
+#if defined(__GNUC__)
+#if __GNUC__ < 3
	appcstrg(&cppflags, "-$");
	appcstrg(&cppflags, "-C");
+#else
+	appcstrg(&cppflags, "-CC");
+#endif
+#endif
	appcstrg(&cppflags, "-Wcomment");
#ifdef __DragonFly__
	appcstrg(&cppflags, "-D__DragonFly__=" __XSTRING(__DragonFly__));