docs: make yelp usage conditional in manual
commit5a06d25131f4148613b3c151f7ad5ab5f39e281c
authorSebastian Rasmussen <sebras@hotmail.com>
Sun, 1 Dec 2013 13:15:42 +0000 (1 14:15 +0100)
committerStefan Sauer <ensonic@users.sf.net>
Sun, 1 Dec 2013 16:27:50 +0000 (1 17:27 +0100)
tree3bdd1969cf4780cb55cc5c69c83b7e7a0c794bbb
parent5c12d4109734ee9c772e5d1a2021d2078a71608f
docs: make yelp usage conditional in manual

The help/manual directory will be recursed into (so make dist can
include everything) even if not in SUBDIRS in help/Makefile.am. Because
of this help/manual/Makefile.am is always used to generate the
help/manual/Makefile. And so if help/manual/Makefile.am includes
unconditional yelp usage then help/manual/Makefile will also include
yelp usage, even if yelp is not available.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=719644
help/manual/Makefile.am