Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/cmake/FindMetis.cmake b/cmake/FindMetis.cmake
new file mode 100644
index 0000000..6a0ce79
--- /dev/null
+++ b/cmake/FindMetis.cmake
@@ -0,0 +1,59 @@
+# Pastix requires METIS or METIS (partitioning and reordering tools)
+
+if (METIS_INCLUDES AND METIS_LIBRARIES)
+ set(METIS_FIND_QUIETLY TRUE)
+endif (METIS_INCLUDES AND METIS_LIBRARIES)
+
+find_path(METIS_INCLUDES
+ NAMES
+ metis.h
+ PATHS
+ $ENV{METISDIR}
+ ${INCLUDE_INSTALL_DIR}
+ PATH_SUFFIXES
+ .
+ metis
+ include
+)
+
+macro(_metis_check_version)
+ file(READ "${METIS_INCLUDES}/metis.h" _metis_version_header)
+
+ string(REGEX MATCH "define[ \t]+METIS_VER_MAJOR[ \t]+([0-9]+)" _metis_major_version_match "${_metis_version_header}")
+ set(METIS_MAJOR_VERSION "${CMAKE_MATCH_1}")
+ string(REGEX MATCH "define[ \t]+METIS_VER_MINOR[ \t]+([0-9]+)" _metis_minor_version_match "${_metis_version_header}")
+ set(METIS_MINOR_VERSION "${CMAKE_MATCH_1}")
+ string(REGEX MATCH "define[ \t]+METIS_VER_SUBMINOR[ \t]+([0-9]+)" _metis_subminor_version_match "${_metis_version_header}")
+ set(METIS_SUBMINOR_VERSION "${CMAKE_MATCH_1}")
+ if(NOT METIS_MAJOR_VERSION)
+ message(STATUS "Could not determine Metis version. Assuming version 4.0.0")
+ set(METIS_VERSION 4.0.0)
+ else()
+ set(METIS_VERSION ${METIS_MAJOR_VERSION}.${METIS_MINOR_VERSION}.${METIS_SUBMINOR_VERSION})
+ endif()
+ if(${METIS_VERSION} VERSION_LESS ${Metis_FIND_VERSION})
+ set(METIS_VERSION_OK FALSE)
+ else()
+ set(METIS_VERSION_OK TRUE)
+ endif()
+
+ if(NOT METIS_VERSION_OK)
+ message(STATUS "Metis version ${METIS_VERSION} found in ${METIS_INCLUDES}, "
+ "but at least version ${Metis_FIND_VERSION} is required")
+ endif(NOT METIS_VERSION_OK)
+endmacro(_metis_check_version)
+
+ if(METIS_INCLUDES AND Metis_FIND_VERSION)
+ _metis_check_version()
+ else()
+ set(METIS_VERSION_OK TRUE)
+ endif()
+
+
+find_library(METIS_LIBRARIES metis PATHS $ENV{METISDIR} ${LIB_INSTALL_DIR} PATH_SUFFIXES lib)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(METIS DEFAULT_MSG
+ METIS_INCLUDES METIS_LIBRARIES METIS_VERSION_OK)
+
+mark_as_advanced(METIS_INCLUDES METIS_LIBRARIES)