gnucash master: Check the right variable in the right version of gdk to test for a Mac build.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/89336269 (commit)
	from  https://github.com/Gnucash/gnucash/commit/02763674 (commit)



commit 89336269d8fc102811d83aeaf0120d5678c38e4b
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Jul 31 07:29:42 2017 +0100

    Check the right variable in the right version of gdk to test for a Mac build.



Summary of changes:
 CMakeLists.txt | 2 +-
 configure.ac   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)