Re: Announcing bglibs version 1.020

On Mon, May 30, 2005 at 10:51:14AM -0500, Ville Walveranta wrote:
> Compilation of 1.020 fails on FreeBSD 4.11-RELEASE system:
> 
> -----
> iobuf/obuf_putf.c: In function `obuf_putfv':
> iobuf/obuf_putf.c:11: warning: implicit declaration of function `va_copy'
> iobuf/obuf_putf.c:10: warning: `ap2' might be used uninitialized in this
> function
> selftests.sh.tmp.34052/test.o: In function `obuf_putfv':
> /usr/local/src/1MAILSYSTEM/bglibs-1.020/iobuf/obuf_putf.c:13: undefined
> reference to `va_copy'
> =====> Load failed! <=====

va_copy is a feature of C99 (previously known as C9X) and is required to
properly handle format strings used in obuf_putfv.  obuf_putfv (and
str_catfv) need to call a function with the given variadic arguments
twice.  There is, unfortunately, no standard way of copying va_args, nor
can I rely on said args being unchanged after a function call, so the
va_copy is necessary.

What compiler does FreeBSD use (and why isn't it C99 compliant yet)?
-- 
Bruce Guenter <[email protected]> http://em.ca/~bruceg/ http://untroubled.org/
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