Re: Feature request - allow boolean operations of undefined cpp symbols

[Pavel Roskin <proski@gnu.org>]

On Fri, 2007-02-02 at 14:10 -0800, Christopher Li wrote:
> On Fri, Feb 02, 2007 at 05:30:37PM -0500, Pavel Roskin wrote:
> > 
> > You need -Wundef or -Wall to check for undefined preprocessor symbols.
> > 
> > $ sparse -Wundef test.c 
> > test.c:1:5: warning: undefined preprocessor identifier
> > 'SYMBOL_NOT_DEFINED'
> > test.c:4:2: warning: "not defined"
> 
> Ha, I see. So do you still want some thing more than -Wno-undef?

My intention was that we always allow boolean operations of undefined
cpp symbols, regardless of the flags.

Since Linus wants the existing strictness of -Wundef for the kernel, and
the kernel is sparse's "number one customer", I'll need to think of
something better to accommodate both the kernel and the userspace.

-- 
Regards,
Pavel Roskin