Regen the patches files (one file per patch).
Fix for NetBSD ELF platform: files/stab-elf.c and config/untested/elf-netbsd-cc
(by way of patches/patch-af) adjusted.
Thanks to Nick for the helping hand and to Alistair for the previous work.
This should close PR 13527.
Make X11 support conditional by way if the ELK_USE_X11 variable.
I tried to enable Motif support: only Motif 1.X should work but
even with the lesstif12 package it does not - it does compile though.
So Motif support if commented out but leaved in case someone want to fix
ELK.