[cmake] Patch need to spglib.pc in debian
For compiling octopus with cmake, the following patch is needed to get spglib picked up
echo "Requires: spglib" >> /usr/lib/x86_64-linux-gnu/pkgconfig/spglib_f08.pc
Im not sure if this is a Debian package problem or our octopus cmake script problem, but adding a note here to keep track of such problems.
The CI at https://github.com/fangohr/octopus-in-docker/pull/38/files might run through when this is fixed ( and can serve as a test )