Kahip does not build with clang (conflicts('%clang') in kahip package.
Because of this, openfoam-com %clang fails concretization. Therefore,
this changes the default openfoam-com variant for kahip to False.
Kahip does not build with clang (conflicts('%clang') in kahip package.
Because of this, openfoam-com %clang fails concretization. Therefore,
this changes the default openfoam-com variant for kahip to False.