crosscompile for VxWorks

[SXTHREE]

I'm getting problems while cross-compiling libiberty for
powerpc-wrs-vxworks5.3 .

It seems stdarg.h needs being included before stdio in
vasprintf (and in anything which uses va_lists)

puting the lines
-->
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
>--
before 
#include <stdio.h>
does not seem harmful on Solaris and it makes libiberty compile
for my cross-target.

I wonder if moving stdarg before stdio is the right solution or if
I should instead try to force the use of the old VxWorks ARCH_va_list
for compiling libiberty.

(Note: using egcs-19980418 snapshot)

FM