Unknown command -mcs on OS/X

[nigelhorne]

cd src; make install
cp libtyphoon.a /usr/local/lib
ranlib /usr/local/lib/libtyphoon.a
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /usr/local/lib/libtyphoon.a(ansi.o) has no symbols
chmod 644 /usr/local/lib/libtyphoon.a
chown root /usr/local/lib/libtyphoon.a
chgrp wheel /usr/local/lib/libtyphoon.a
cp ../include/environ.h ../include/typhoon.h /usr/local/include
cd /usr/local/include && chmod 644 ../include/environ.h ../include/typhoon.h
cd /usr/local/include && chown root ../include/environ.h ../include/typhoon.h
cd /usr/local/include && chgrp wheel ../include/environ.h ../include/typhoon.h
cd util; make install
cp ddlp dbdview tyexport tyimport /usr/local/bin
cd /usr/local/bin && -mcs -c ddlp dbdview tyexport tyimport
/bin/sh: -mcs: command not found

[nigelhorne]

Actually, I'm seeing the same on Linux.