svn commit: r228606 - head/share/mk

[Dimitry Andric]

Author: dim
Date: Fri Dec 16 23:42:25 2011
New Revision: 228606
URL: http://svn.freebsd.org/changeset/base/228606

Log:
  Add a NO_WARRAY_BOUNDS setting to bsd.sys.mk, only applicable to clang,
  to selectively work around warnings in programs that don't use flexible
  array members, but instead define arrays of length 1 at the end of the
  struct, and then access those beyond their declared bounds.
  
  MFC after:	1 week

Modified:
  head/share/mk/bsd.sys.mk

Modified: head/share/mk/bsd.sys.mk
==============================================================================
--- head/share/mk/bsd.sys.mk	Fri Dec 16 23:40:56 2011	(r228605)
+++ head/share/mk/bsd.sys.mk	Fri Dec 16 23:42:25 2011	(r228606)
@@ -70,6 +70,9 @@ CWARNFLAGS	+=	-Wno-switch-enum
 .   if ${WARNS} <= 1
 CWARNFLAGS	+=	-Wno-parentheses
 .   endif
+.   if defined(NO_WARRAY_BOUNDS)
+CWARNFLAGS	+=	-Wno-array-bounds
+.   endif
 .  endif
 . endif