FreeBSD zsh port fixes

[Phil Pennock <zsh-workers+phil.pennock@xxxxxxxxxxxx>]

Two issues; one an FYI, the other appears more problematic.

Saw a change flow by, affecting the FreeBSD Ports build of zsh:
  https://github.com/freebsd/freebsd-ports/tree/master/shells/zsh

Change:
  https://github.com/freebsd/freebsd-ports/commit/0e5ab95752577d446d06f83b25477a997ff6b52c

Changes are to add `-DBOOL_DEFINED` to CPPFLAGS and to put
`zsh_cv_sys_path_dev_fd=no` into environ before configure.

Bug 183253:
  https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=183253
Bug 180178:
  https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=180178

It looks like for 183253 the FreeBSD folks are investigating the
definition of bool in the NIS sub-system but perhaps worth looking at a
fix in zsh on the same basis as the Solaris fix between curses and,
again, NIS.

For 180178, note that the FreeBSD pkg notes for bash warn to have
/dev/fd be fdescfs mounted, so if zsh requires the same as bash, we're
not in bad shape; note that if /dev/fd is not fdescfs, then it's
FreeBSD devfs and only 0, 1 and 2 will exist -- they're special-cased.
-- 
My employer, Apcera Inc, is hiring sysadmin; primarily San Francisco:
 http://www.apcera.com/jobs/#operations-engineer
(but all the mistakes in this email are made in my personal capacity)