Do not test pyamgcl built with clang
Do not test pyamgcl built with clang

huahbo/amgcl,ddemidov/amgcl,huahbo/amgcl,dondieselkopf/amgcl,ddemidov/amgcl,huahbo/amgcl,dondieselkopf/amgcl,ddemidov/amgcl,dondieselkopf/amgcl,ddemidov/amgcl