This issue is still up to date. Most impacted are distos like for example Buldroot (http://buildroot.org/). Usual production rootfs provide neither gcc nor /sbin/ldconfig nor objdump. So find_library() is doomed from the very beginning.

Such packages like pyusb, pyudev etc. rely on find_library() and are not usable in such environment. Pyusb developers had to create an extra backend to overcome this issue (https://github.com/walac/pyusb/pull/29).

So common solution would be very useful for such environments.