Drop the termcap option which is useless.
Drop old patches dating for the switch to elf time
Add new patches to ensure FreeBSD is treated exactly like linux is.
As there is no differences in way elf libraries can be named (note
this is int he way to be upstream).
Be futur proof about libtermcap, as we are about to drop the libtermcapw in base
to only keep one single version of ncurses (widechar friendly)