of these functions. This is somewhat of a kludge, but there is not
much else we can do for this case.
Because of how the callable versions are created, by CPP trickery
and inclusion of another .c file, we cannot allow the included .c
file to pull in "namespace.h", since it undoes the CPP trickery we
have performed. Introduce a CPP macro that prevents the included .c
file from pulling in "namespace.h".
__{v,}err{x,} and __{v,}warn{x,}
- moved err.c to __err.c and added err.c which contains weak references for
the above functions.
- Reordered the functions in __err.c to avoid redeclarations and changed
the varargs declarations to conform with the K&R style.
