abc-rs does not link on macos

[alain-rs]

[ 64%] Building C object yosys_verific_rs/logic_synthesis-rs/abc-rs/CMakeFiles/libabc.dir/src/bdd/llb/llb4Nonlin.c.o
[ 64%] Building C object yosys_verific_rs/logic_synthesis-rs/abc-rs/CMakeFiles/libabc.dir/src/bdd/llb/llb4Sweep.c.o
[ 64%] Linking CXX static library ../../../../OpenFPGA_RS/abc/libabc.a
/Applications/Xcode_13.2.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../../OpenFPGA_RS/abc/libabc.a(wln.c.o) has no symbols
/Applications/Xcode_13.2.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../../OpenFPGA_RS/abc/libabc.a(wlnMem.c.o) has no symbols
/Applications/Xcode_13.2.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../../OpenFPGA_RS/abc/libabc.a(acbAig.c.o) has no symbols