🚀 go-pugleaf

koblas@netcom.com (David Koblas) writes:

>Help, I don't use GCC or Sun machines, and this is where this is
>being reported to me as happening.

>Given the following prototype (in a headerfile):

>        void            RWSetMsg(...);

>and the following source file:

>        void RWSetMsg(va_alist)
>        va_dcl
>        {
>                ...
>        }

>What do I need to do to fix the following error message (somewhat
>portably)?

>rwTable.c: In function `RWSetMsg':
>rwTable.c:220: argument `__builtin_va_alist' doesn't match prototype
>*** Error code 1

The fix is easy: write portable code.

You have made two mistakes:

The prototype doesn't match the function definition. You use
a new style prototype but use an old style function declaration.
This is a no-no.

Gcc complaines about this fact.

The other error is the prototype. It isn't a legal ANSI C prototype.
You must specify a first argument in a variadic function.
(Though gcc lets you get away with this)

To fix:

prototype:
	void            RWSetMsg(firstargtype, ...);

definition:

	#include <stdarg.h> /* you've probably got that one already */

	void            RWSetMsg(firstargtype firstarg, ...)
	{
		...
	}


Casper