Half of the ports had a manual post_install step to delete libtool files
this is now done automatically and there is no need for it!
Libtool files have to be deleted as libtool doesn't work while
cross-compiling (at least out of the box)
Now ports define some environment variables, and call a unified bash
script that handles configuration, recompilation and installation.
If a port uses non-configure buildsystem, port script can also specify
custom build and install step.
Bananymous