ECMSetupVersion: phase out deprecated *_VERSION_STRING CMake variables
*_VERSION_STRING had been deprecated since CMake 3.0 introduced the VERSION argument to project(), which does not use the _STRING suffix with the version variable. Last WE saw a clean-up across projects which still had been using those variable variants, so time to phase this out from the ECMSetupVersion as well.
I tested ECMGeneratePriFile manually, no real interest to invest into starting a unit test here for legacy systems ;)
@cgiboudeaux @mlaurent
Edited by Friedrich W. H. Kossebau