qt: fix build some more when QPA is not available
authorTim-Philipp Müller <tim@centricular.com>
Fri, 1 Jul 2016 18:22:32 +0000 (19:22 +0100)
committerTim-Philipp Müller <tim@centricular.com>
Fri, 1 Jul 2016 18:29:49 +0000 (19:29 +0100)
commit474ece76839578a1f0c4281e6c75c9e702991bc4
tree9b230ea89bf5b5a1f8b638931cd959bbf1ed07a8
parent04fd6dc6c44e7b9227b5ed71ac93a06e0eaf8846
qt: fix build some more when QPA is not available

Compiler would complain about include directory that didn't
exist because QPA_INCLUDE_PATH gets subst-ed regardless
(and if it didn't we'd have just an empty -I argument).

https://bugzilla.gnome.org/show_bug.cgi?id=767553
ext/qt/Makefile.am