Trouble with 2.11BSD compiler

I’m having some trouble with the current 2.11BSD linker under Apout.

$ env APOUT_UNIX_VERSION=2.11BSD APOUT_ROOT="$(pwd -L)/x" ~/src/Apout/apout x/bin/cc -v -O -o crc crc.c
__iob: ld:/lib/libc.a(findiop.o): multiply defined
__smallbuf: /lib/libc.a(findiop.o): multiply defined
curbrk: /lib/libc.a(sbrk.o): multiply defined
minbrk: /lib/libc.a(sbrk.o): multiply defined
__ovno: /lib/libc.a(csv.o): multiply defined

The same happens when trying to manually link:

$ env APOUT_UNIX_VERSION=2.11BSD APOUT_ROOT="$(pwd -L)/x" ~/src/Apout/apout x/bin/ld -o crc /lib/crt0.o crc.o /lib/libc.a
__iob: ld:/lib/libc.a(findiop.o): multiply defined
__smallbuf: /lib/libc.a(findiop.o): multiply defined
curbrk: /lib/libc.a(sbrk.o): multiply defined
minbrk: /lib/libc.a(sbrk.o): multiply defined
__ovno: /lib/libc.a(csv.o): multiply defined

Using Fedora 44, “x” is 2.11BSDpl482 mounted with retro-fuse.

Image from: https://asjackson-211bsd-ci.s3.fr-par.scw.cloud/211bsd-ci-482.dsk.gz

Using the compiler and linker under SIMH is fine.

Start by reproducing the compiler and manual linker commands from the report under Apout with APOUT_UNIX_VERSION=2.11BSD and the referenced 2.11BSDpl482 image. Compare the failing Apout behavior with the working SIMH setup, then trace the reported multiply-defined symbols through the linker and libc inputs. Done means the affected command links successfully under Apout without regressing the existing SIMH behavior.