Add CMake to cross file.
Add CMake to cross file.

Original patch by Helmut Grohne.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1023744

mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson