Include stdarg.h for va_list. Unbreaks the build on OpenBSD:
In file included from mesa/program/dummy_errors.c:24:
../src/mesa/main/errors.h:85: error: expected declaration specifiers or '...' before 'va_list'
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
#include <stdio.h>
+#include <stdarg.h>
#include "compiler.h"
#include "glheader.h"
#include "mtypes.h"