Stephen J. Turnbull writes:
It looks to me like you may have a problem in your GCC installation,
where certain compiler helper functions or macros (__builtin_va_alist)
are not getting defined. Beyond that I can't say; I hope the Solaris
users on xemacs-beta will be able to give further help.
The following two lines indicate the problem:
uname -a: SunOS lift 5.7 Generic_106541-14 sun4u sparc
You're using a 2.5.1 version of gcc running on 2.7, which has been
known to cause hosts of problems. You need to reinstall gcc
if you don't feel like recompiling it) or use the Sun compiler.