This reverts commit 901b5954.
It (METIS) does not seem needed for compilation and the patch
forced the user and downstream modules to add additional compile
 and linker flags.

Just like for the autotools.

The config.h entry for ENABLE_UMFPACK should be in the same module
as the test for UMFPack, to avoid future conflicts with multiple
modules running the test for umfpack.

Dominic Kempf authored 11 years ago and Markus Blatt committed 11 years ago

This commit contains
- a wrapper for the C library UMFPack
- tests for both CMake and autotools to find UMFPack on the system
- a unit test for UMFPack
- a new MatrixType ColCompMatrix which is a base class for a column
  compressed matrix. SuperLUMatrix now inherits from this base class.
  This way, no code is duplicated for the very similar interface in
  UMFPack.
- the SuperLU-specific part of OverlappingSchwarz code is abstracted
  to work with either SuperLU or UMFPack

[[Imported from SVN: r1828]]

[[Imported from SVN: r1677]]

Add test for HAVE_MEM_USAGE_T_EXPANSIONS needed for SuperLU 3.0.
This fixes CMake Bug #133.

[[Imported from SVN: r1655]]

[[Imported from SVN: r1654]]

Add HAVE_SUPERLU et al. to config.h.
Update test set up to handle SuperLU tests correctly.

[[Imported from SVN: r1615]]

[[Imported from SVN: r1614]]