42b502f is not needed for branches >= 5.8, configure.exe does not
exist anymore.
30660bf was not applied to 5.9 branch, the scripts were not
adapted to new template.
Conflicts:
coin/platform_configs/default.txt
coin/platform_configs/qt5.txt
Change-Id: Ie3681d5f641e99a074368f21b7f85fe31beacc17