emaste a58ac4182d makeman: avoid bogus output with duplicated options
On some targets 'make showconfig' currently reports both 'no' and 'yes'
for some options. For example:

% make TARGET=mips showconfig | grep SSP
MK_SSP           = no
MK_SSP           = yes

Emit a warning on encountering a duplicated variable, and skip the
second entry.

Sponsored by:	The FreeBSD Foundation
2016-10-05 20:12:00 +00:00
..
2016-09-21 19:30:34 +00:00

$FreeBSD$

This directory tree contains tools used for the maintenance and
testing of FreeBSD.  There is no toplevel Makefile structure since
these tools are not meant to be built as part of the standard system,
though there may be individual Makefiles in some of the subdirs.

Please read the README files in the subdirs for further information.