From: H. Peter Anvin <hpa@zytor.com>
Date: Fri, 30 Sep 2005 19:19:02 GMT
Subject: Re: [PATCH] Support SPARSE in Makefile, better SPARSE_FLAGS
Message-ID: <433D8FA6.2080808@zytor.com>
In-Reply-To: <1128087662.14543.14.camel@dv>

Pavel Roskin wrote:
> 
> I hate to say that, but a better alternative is to fix sparse to act
> like the native compiler by default (possibly with options to imitate
> other architectures or to be fully arch-neutral).
> 

$(CC) $(CFLAGS) -E -dM -x c /dev/null -o builtin.h

... will output a file containing all the buildin macros that you can 
feed to sparse with -include.

Replacing -x c with, say, -x c++ gives you the builtins for C++; 
including $(CFLAGS) gives the appropriate set of macros for any 
particular combination of options (which can affect the builtin macro set.)

	-hpa