[Xenomai-core] [RFC] fix XENO_OPT_DEBUG bugs.

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Hi,

I found some code which was referencing directly some
CONFIG_XENO_OPT_DEBUG_ variables with things like:

#ifdef CONFIG_XENO_OPT_DEBUG_FOO

This usage is incompatible with the pre-requisites of the assert.h
header that CONFIG_XENO_OPT_DEBUG_FOO should be defined at all times.
While grepping for CONFIG_XENO_OPT_DEBUG_, I found that we also have
many duplicates of construction like:
#ifndef CONFIG_XENO_OPT_DEBUG_FOO
#define CONFIG_XENO_OPT_DEBUG_FOO 0
#endif /* CONFIG_XENO_OPT_DEBUG_FOO */

So, a patch follows which:
- replace the #ifdef with some #if XENO_DEBUG(FOO)
- move all the initializations to assert.h

This will make any reference to CONFIG_XENO_OPT_DEBUG_FOO outside of
assert.h suspicious, and easy to detect.

Thanks in advance for any comments.
Regards.

-- 
					    Gilles.