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Make the build of LiteBSD more self-contained:
* Use our own lorder script instead of relying on what is on the OS.
* /usr/bin/env perl everywhere, for FreeBSD (which installs to /usr/local/bin).
* ufstool needs a FreeBSD-specific #ifdef in one spot.
* pcc was using bison as its yacc, switch pcc to byacc like everything else.
* Some tweaks to the ncurses build process.

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