Re: AIX 5.1 xlc va_copy (stdarg patch)

[Paul Eggert]

"Peter O'Gorman" <address@hidden> writes:

> +#if ! @HAVE_VA_COPY@
> +#define va_copy(a,b) ((a) = (b))
> +#endif

Wouldn't it be simpler to do this?

#ifndef va_copy
#define va_copy(a,b) ((a) = (b))
#endif

After all, if there is already a va_copy, and it disagrees with our
substitute, we're probably wrong.  Doing this removes the need for
generating or substituting HAVE_VA_COPY.  va_copy is required to be a
macro, so this should be safe.