DEPRECATED since Psi4 v1.3 in favor of https://gitlab.com/libxc/libxc --- Miguel A.L. Marques's Exchange-correlation functionals for density-functional theory wrapped in CMake
[x] Brings common CMake files up-to-date with other Psi4 addons
[x] Had been doing complicated stuff to get four "work_" files to compile (.c files, I might add). Turns out from @susilehtola that these are just meant to be included from other files (why aren't they .hs?), so this also fixes loriab/libxc#2
.cfiles, I might add). Turns out from @susilehtola that these are just meant to be included from other files (why aren't they.hs?), so this also fixes loriab/libxc#2