[Bug bootstrap/69757] OpenBSD requires -fPIC to build.

[edd at theunixzoo dot co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69757

--- Comment #8 from Edd Barrett <edd at theunixzoo dot co.uk> ---
Created attachment 37720
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37720&action=edit
Patches used to bootstrap GCC on OpenBSD/amd64.