* Exodus: skip the -G "Unix Makefiles" part
The problem is that spack passes -G "Unix Makefiles" into cmake, which normally
works. But in the Exodus package, it is being passed into a bash wrapper
script. In there, the $@ then loses the information about "Unix Makefiles"
being just one argument, and in effect passes -G Unix Makefiles into the cmake
(without quotes), and so cmake only sees -G Unix, and then fails. This is a
known problem with bash with no simple solutions. As a workaround, this patch
skips the first two arguments, i.e., -G and "Unix Makefiles". This makes it
work.
Fixes#5895.
* Port exodusii to cmake
The cmake options were taken from the cmake-exodus bash script and ported to
spack directly.
* Use variant forwarding to forward the 'mpi'
Now instead of
spack install exodusii~mpi^netcdf~mpi^hdf5~mpi
one can just use
spack install exodusii~mpi