recent ld built for x86_64 fails to accept 16bit code as input (seabios build)

[Michael Tokarev]

Hello!

To clarify from the very beginning, I don't know how this part of the
larger picture actually works.  The end result is that seabios project,
with the current source tarball available for download from
https://www.seabios.org/downloads/seabios-1.13.0.tar.gz ,
can't be built using GNU ld as of version 2.34.90.20200706.

Here's the relevant output:

seabios-1.13.0 $ make silentoldconfig
seabios-1.13.0 $ make V=1 PYTHON=python3
...
  Linking out/rom16.o
ld -T out/romlayout16.lds out/code16.o -o out/rom16.o
  Stripping out/rom16.strip.o
strip out/rom16.o -o out/rom16.strip.o
  Linking out/rom.o
ld -N -T out/romlayout32flat.lds out/rom16.strip.o out/rom32seg.strip.o out/code32flat.o -o out/rom.o
ld: cannot use executable file 'out/rom16.strip.o' as input to a link
make: *** [Makefile:187: out/rom.o] Error 1
seabios-1.13.0 $ _

Previous versions of ld accepted this file just fine
and produced valid out/bios.bin in the end.

I dunno if this is a problem is seabios (which has actually
been already reported to seabios by Paul Menzel today), or
an issue in ld. These ROMs/firmwares are a bit tricky to build..

Thanks!

/mjt