As you noted, adding -L... helps. I'm not sure how to do this with libtool, because it's "install" stage doesn't accept linker options, even though it's actually doing linking.

Did I mention I hated that PoS?

Maybe setting LD_LIBRARY_PATH before running libtool --install will work?

I had this same problem as I set R as well. This was fixed for me by setting: LDFLAGS (before ./configure) RLM_LDFLAGS (when you call make) I made my own makefile one directory up: all: cd ${SRCDIR} && LDFLAGS=/alt/dir/to/usr/local/lib \ ./configure \ (etc....) \ && make \ RLM_LDFLAGS=/alt/dir/to/usr/local/lib Thanks, Ryan