- Add support for gcc7.
- Add support for gcc8 and gcc9 (jsc#SLE-7766 & jsc#SLE-8609).

- Update to 2.18.2:
* Fixed mixedint bugs.
* Ported BoomerAMG setup to run on GPUs. Only a subset of setup phase
features are currently available.
* Updated CMake to support more of the features available in configure/make.
* Added RecomputeResidual options to several hybrid solvers.
* Various bug fixes.
- Disable openmpi1 builds for SLE/Leap > 15.1.
- Adapt build for openmpi1 to reflect naming change on Factory.
- Enable openmpi3 builds for Leap and SLE > 15.1 (jsc#SLE-7773).
- hypre_CMakeLists.patch refreshed and replaced by:
Fix-library-version-numbering.patch
- Fix-empty-elseif-in-CMakeLists.txt.patch:
Fix empty elseif() in CMake file.
- Use full package version to identify .so version:
INSTALL.md states that "The hypre team currently does nothing to ensure
application binary interface (ABI) compatibility. As a result, all release
(major, minor, or patch) should be treated as incompatible."
- Replaced -DHYPRE_SEQUENTIAL by -DHYPRE_WITH_MPI