Needed for the sparc port, allows to build elf2aout which uses err() and
errx(). Allows to build the sparc port from Haiku.
Change-Id: Ia14dd9b1be1c03b36634a675f1a51eeac8d4aacf
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2129
Reviewed-by: waddlesplash <[email protected]>