Since some packages use %make_jobs instead of %_mingw32_cmake_build
$ osc co windows:mingw:win32
$ find -maxdepth 2 -name '*.spec' -exec gawk '$1 ~ _mingw32_cmake {c=1} c && $1
~ /make_jobs/ { print FILENAME " " $0}' {} \; | wc -l
they would not work if you upgrade to a newer package version and use Ninja as
a build tool, as is the case with Qt6.