From c9a900ed440fb8e342cb7b77f33491cd60d57fa5 Mon Sep 17 00:00:00 2001
From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Thu, 18 Feb 2010 02:06:57 +0000
Subject: [PATCH] Allow suppression of -Wcast-align for WARNS>=4 by defining
 NO_WCAST_ALIGN. The headers of the standard C++ library are not 64-bit clean
 and trigger the warning. This prevents use of WARNS>=4 on ia64 for example.

---
 share/mk/bsd.sys.mk | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index afce04474e97..97860f2bd856 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -43,7 +43,10 @@ CWARNFLAGS	+=	-W -Wno-unused-parameter -Wstrict-prototypes\
 .  endif
 .  if ${WARNS} >= 4
 CWARNFLAGS	+=	-Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch\
-			-Wshadow -Wcast-align -Wunused-parameter
+			-Wshadow -Wunused-parameter
+.   if !defined(NO_WCAST_ALIGN)
+CWARNFLAGS	+=	-Wcast-align
+.   endif
 .  endif
 # BDECFLAGS
 .  if ${WARNS} >= 6