Are there any goal to be able to compile things with non-__STDC__ compilers
in userspace? The reason I ask is that the construction:

#define __GNUC_PREREQ__(x, y)   0

#if !__GNUC_PREREQ__(2, 0)
blaha...
#endif

breaks badly when using reiser cpp (which is almost the only non-__STDC__
preprocessor).  It doesn't accept a macro with parameters in #if statements.

-- Ragge