* From: David Woodhouse * Date: Thu, 24 May 2007 11:32:45 -0400 > > On Wed, 2007-05-23 at 13:29 +0100, Jonathan Underwood wrote: >> Dear Kernel list, >> >> I've noticed in the past that unifdef is used in kernel package >> building. I wonder if you're aware of a maintained and more >> featureful program, Sunifdef, which has evolved from unifdef (which >> seems mostly unmaintained). It's packaged for Fedora, and has a >> website here. > > The kernel no longer uses an external unifdef -- it has its own in > scripts/unifdef.c. If you want to work with the upstream kernel to > change that to sunifdef, go ahead. > > Can 'sunifdef -U__KERNEL__' fix up stuff like... > > #if defined(__KERNEL__) && defined(__FOO__) > and > #if defined(__KERNEL__) || defined(__BAR__) > > ... by treating them as '#if 0' (and eliding completely) and by > rewriting to just #ifdef __BAR__, respectively? If so, changing the > upstream kernel seems like it would be useful.
If, what you've wrote would be policy (with watchdog script in the git), i think, simple (sed) scripts can be written to unifdef __KERNEL__ for userspace headers, with further sed'ing them(compiler.h), without any need of external or internal *programs*. Linux coding standards got rid of many C obfustications, happily. -*- [EMAIL PROTECTED]:/tmp$ grep -e __KERNEL /usr/include/linux/soundcard.h | grep '!' #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS) [EMAIL PROTECTED]:/tmp$ -*- Even this one is simple regex, but anyway, policy would be good. > -- > dwmw2 ____ ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kbuild-devel mailing list kbuild-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kbuild-devel
