File: configure_slepc.cmake

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## ---------------------------------------------------------------------
##
## Copyright (C) 2012 - 2014 by the deal.II authors
##
## This file is part of the deal.II library.
##
## The deal.II library is free software; you can use it, redistribute
## it, and/or modify it under the terms of the GNU Lesser General
## Public License as published by the Free Software Foundation; either
## version 2.1 of the License, or (at your option) any later version.
## The full text of the license can be found in the file LICENSE at
## the top level of the deal.II distribution.
##
## ---------------------------------------------------------------------

#
# Configuration for the SLEPC library:
#

SET(FEATURE_SLEPC_DEPENDS PETSC)


MACRO(FEATURE_SLEPC_FIND_EXTERNAL var)
  FIND_PACKAGE(SLEPC)

  IF(SLEPC_FOUND)
    SET(${var} TRUE)
  ENDIF()
ENDMACRO()


MACRO(FEATURE_SLEPC_ERROR_MESSAGE)
  MESSAGE(FATAL_ERROR "\n"
    "Could not find the SLEPc library!\n"
    ${SLEPC_ADDITIONAL_ERROR_STRING}
    "Please ensure that the SLEPc library version 3.0.0 or newer is installed on your computer\n"
    "and the version is the same as the one of the installed PETSc library.\n"
    "If the library is not at a default location, either provide some hints\n"
    "for the autodetection:\n"
    "SLEPc installed with --prefix=<...> to a destination:\n"
    "    $ SLEPC_DIR=\"...\" cmake <...>\n"
    "    $ cmake -DSLEPC_DIR=\"...\" <...>\n"
    "SLEPc compiled in source tree:\n"
    "    $ SLEPC_DIR=\"...\"\n"
    "    $ cmake -DSLEPC_DIR=\"...\"\n"
    "or set the relevant variables by hand in ccmake.\n\n"
    )
ENDMACRO()


CONFIGURE_FEATURE(SLEPC)