ld multiple definition error

[sfmth]

I was getting an arror during build regarding multiple definitions of a few things.
turns out in a few versions of ld this error can happen: https://stackoverflow.com/questions/15822700/ld-resolve-multiple-definition-manually

$ ld --version
GNU ld (GNU Binutils) 2.40
Copyright (C) 2023 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.

Modifications to fix the error:
src/makefile.cvc64:
Line 78: LIBS= -lm -ldl -z muldefs -lpthread -lz
Line 136: $(LD) --relocatable -z muldefs -o cvclib.o $(RT_OBJS)