bsd.lib.mk and bsd.own.mk ignore /etc/make.conf(INSTALL)

Hi

Any idea why '-C' is hard coded for bsd.lib.mk and bsd.own.mk?  I
thought that the make.conf variable was there to allow or disallow
this.  The following comes from bsd.lib.mk:

.if defined(LIB) && !empty(LIB) && !defined(NOINSTALLLIB)
        ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
            ${_INSTALLFLAGS} lib${LIB}.a ${DESTDIR}${LIBDIR}
.endif
.if !defined(NOPROFILE) && defined(LIB) && !empty(LIB)
        ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
            ${_INSTALLFLAGS} lib${LIB}_p.a ${DESTDIR}${LIBDIR}
.endif

Ian