ah ok, we want to build this even without GSL. so the bug is in FindGSL.cmake.
ah ok, we want to build this even without GSL.
so the bug is in FindGSL.cmake.

cjntaylor/eigen,pthulhu/eigen,cjntaylor/eigen,cjntaylor/eigen,cjntaylor/eigen,pthulhu/eigen,pthulhu/eigen,pthulhu/eigen,pthulhu/eigen