

set(BLAS_FOUND EIGEN_BUILD_BLAS)
set(LAPACK_FOUND EIGEN_BUILD_LAPACK)
set(BLAS_LIBRARIES eigen_blas_static)
set(LAPACK_LIBRARIES eigen_lapack_static)

set(SPARSE_LIBS "")

# find_library(PARDISO_LIBRARIES pardiso412-GNU450-X86-64)
# if(PARDISO_LIBRARIES)
#   add_definitions("-DEIGEN_PARDISO_SUPPORT")
#   set(SPARSE_LIBS ${SPARSE_LIBS} ${PARDISO_LIBRARIES})
# endif()

find_package(CHOLMOD)
if(CHOLMOD_FOUND AND BLAS_FOUND AND LAPACK_FOUND)
  add_definitions("-DEIGEN_CHOLMOD_SUPPORT")
  include_directories(${CHOLMOD_INCLUDES})
  set(SPARSE_LIBS ${SPARSE_LIBS} ${CHOLMOD_LIBRARIES} ${BLAS_LIBRARIES} ${LAPACK_LIBRARIES})
  set(CHOLMOD_ALL_LIBS  ${CHOLMOD_LIBRARIES} ${BLAS_LIBRARIES} ${LAPACK_LIBRARIES})
endif()

find_package(UMFPACK)
if(UMFPACK_FOUND AND BLAS_FOUND)
  add_definitions("-DEIGEN_UMFPACK_SUPPORT")
  include_directories(${UMFPACK_INCLUDES})
  set(SPARSE_LIBS ${SPARSE_LIBS} ${UMFPACK_LIBRARIES} ${BLAS_LIBRARIES})
  set(UMFPACK_ALL_LIBS ${UMFPACK_LIBRARIES} ${BLAS_LIBRARIES})
endif()

find_package(KLU)
if(KLU_FOUND)
  add_definitions("-DEIGEN_KLU_SUPPORT")
  include_directories(${KLU_INCLUDES})
  set(SPARSE_LIBS ${SPARSE_LIBS} ${KLU_LIBRARIES})
endif()

find_package(SuperLU 4.0)
if(SuperLU_FOUND AND BLAS_FOUND)
  add_definitions("-DEIGEN_SUPERLU_SUPPORT")
  include_directories(${SUPERLU_INCLUDES})
  set(SPARSE_LIBS ${SPARSE_LIBS} ${SUPERLU_LIBRARIES} ${BLAS_LIBRARIES})
  set(SUPERLU_ALL_LIBS ${SUPERLU_LIBRARIES} ${BLAS_LIBRARIES})
endif()


find_package(PASTIX QUIET COMPONENTS METIS SCOTCH)
# check that the PASTIX found is a version without MPI
find_path(PASTIX_pastix_nompi.h_INCLUDE_DIRS
  NAMES pastix_nompi.h
  HINTS ${PASTIX_INCLUDE_DIRS}
)
if (NOT PASTIX_pastix_nompi.h_INCLUDE_DIRS)
  message(STATUS "A version of Pastix has been found but pastix_nompi.h does not exist in the include directory."
                 " Because Eigen tests require a version without MPI, we disable the Pastix backend.")
endif()
if(PASTIX_FOUND AND PASTIX_pastix_nompi.h_INCLUDE_DIRS AND BLAS_FOUND)
  add_definitions("-DEIGEN_PASTIX_SUPPORT")
  include_directories(${PASTIX_INCLUDE_DIRS_DEP})
  if(SCOTCH_FOUND)
    include_directories(${SCOTCH_INCLUDE_DIRS})
    set(PASTIX_LIBRARIES ${PASTIX_LIBRARIES} ${SCOTCH_LIBRARIES})
  elseif(METIS_FOUND)
    include_directories(${METIS_INCLUDE_DIRS})
    set(PASTIX_LIBRARIES ${PASTIX_LIBRARIES} ${METIS_LIBRARIES})  
  endif()
  set(SPARSE_LIBS ${SPARSE_LIBS} ${PASTIX_LIBRARIES_DEP} ${ORDERING_LIBRARIES})
  set(PASTIX_ALL_LIBS ${PASTIX_LIBRARIES_DEP})
endif()

if(METIS_FOUND)
  include_directories(${METIS_INCLUDE_DIRS})
  set (SPARSE_LIBS ${SPARSE_LIBS} ${METIS_LIBRARIES})
  add_definitions("-DEIGEN_METIS_SUPPORT")
endif()

find_library(RT_LIBRARY rt)
if(RT_LIBRARY)
  set(SPARSE_LIBS ${SPARSE_LIBS} ${RT_LIBRARY})
endif()

add_executable(spbenchsolver spbenchsolver.cpp)
target_link_libraries (spbenchsolver ${SPARSE_LIBS})

add_executable(spsolver sp_solver.cpp)
target_link_libraries (spsolver ${SPARSE_LIBS})


add_executable(test_sparseLU test_sparseLU.cpp)
target_link_libraries (test_sparseLU ${SPARSE_LIBS})