pre-generated Makefile already provided
- Unbreak the build on PowerPC by not treating it differently from other
FreeBSD systems
- Respect CFLAGS in a more sane way than patching ${WRKSRC}/machine.h in
`_post-configure' target with some cryptic sed(1) regexp
- Factor out docfiles installation into `post-install-DOCS-on' target,
sanitize it a bit, unmute installation commands, move OPTIONS_DEFINE
knob lower while I am here
- Avoid use of contraction in the port description text
