So you have experience with libtool? Upstream's build system is a pain to update, because TeXLive is a compilation, and it is put together from a couple of up-upstream sources. Each uses their own hacks, and making changes is hard, in particular when you don't have much knowledge of internals of the respective tools (libtool in this case).
For current set of sources is sufficient to perform following steps: cd build/source/libs/teckit/ ./autogen.sh cd -There will be some outdated part of libtool in other components, but the result of the first check will be cached and therefore the right one will be used.
Petr