gnucash-docs maint: CMake - revisit project variables

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/9b9a657d (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/1527cb2f (commit)



commit 9b9a657d8747e8c4969daa85e88f5bb4504ac404
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Fri Sep 13 21:21:36 2019 +0200

    CMake - revisit project variables
    
    - Remove a number of variables we're not using
    - Tweak the 'project' command to set VERSION and use the resulting variables
    - Tell cmake we're not using any of its known languages to avoid checking C/C++ features



Summary of changes:
 CMakeLists.txt | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)