Sylvain Beucler wrote: > > > I got confused because `./configure --help` documents > > > '--with-libmylib-prefix', but doesn't mention '--with-mylib'.
If you use AC_LIB_LINKFLAGS, there is no --with[out]-mylib option, only a --with[out]-libmylib-prefix option. --without-libmylib-prefix instructs the configure file to not make special effort to search for libmylib. If libmylib may or may not be present, you better use AC_LIB_HAVE_LINKFLAGS instead of AC_LIB_LINKFLAGS, and provide an AC_ARG_WITH([libmylib], ...) by yourself. Bruno
