Ported the spec file to CRT's new, way nicer build system.
PS: Many thanks to Glen Oakley <goakley123@gmail.com> and Doug Newgard <scimmia at archlinux dot info> whose workarounds were used previously.
To run cool-old-term Qt5's qmlscene binary is required. The specfile, however, did not have QtDeclarative-devel as requirement specified.
I also made some adjustments to the BuildRequirements as "pkgconfig" is the recommended cross-distro way, hopefully enabling building cool-old-term under Mageia 5.