Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
@@ -0,0 +1,85 @@
+# https://raw.githubusercontent.com/dune-project/dune-istl/master/cmake/modules/FindARPACK.cmake
+#
+# This file is taken from:
+#
+# DUNE, the Distributed and Unified Numerics Environment
+# GPLv2 licensed
+#
+# .. cmake_module::
+#
+#    Module that checks whether ARPACK is available and usable.
+#
+#    Variables used by this module which you may want to set:
+#
+#    :ref:`ARPACK_ROOT`
+#       Path list to search for ARPACK.
+#
+#    Sets the following variables:
+#
+#    :code:`ARPACK_FOUND`
+#       True if ARPACK available.
+#
+#    :code:`ARPACK_LIBRARIES`
+#       Link against these libraries to use ARPACK.
+#
+# .. cmake_variable:: ARPACK_ROOT
+#
+#    You may set this variable to have :ref:`FindARPACK` look
+#    for the ARPACK package in the given path before inspecting
+#    system paths.
+#
+
+# look for library, only at positions given by the user
+find_library(ARPACK_LIBRARY
+  NAMES "arpack"
+  PATHS ${ARPACK_PREFIX} ${ARPACK_ROOT}
+  PATH_SUFFIXES "lib" "lib32" "lib64"
+  NO_DEFAULT_PATH
+)
+
+# look for library files, including default paths
+find_library(ARPACK_LIBRARY
+  NAMES "arpack"
+  PATH_SUFFIXES "lib" "lib32" "lib64"
+)
+
+# check header usability
+include(CMakePushCheckState)
+cmake_push_check_state()
+
+# we need if clauses here because variable is set variable-NOTFOUND if the
+# searches above were not successful; without them CMake print errors like:
+# "CMake Error: The following variables are used in this project, but they
+# are set to NOTFOUND. Please set them or make sure they are set and tested
+# correctly in the CMake files."
+if(ARPACK_LIBRARY)
+  set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${ARPACK_LIBRARY})
+endif()
+
+# end of header usability check
+cmake_pop_check_state()
+
+# behave like a CMake module is supposed to behave
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  "ARPACK"
+  DEFAULT_MSG
+  ARPACK_LIBRARY
+)
+
+# hide the introduced cmake cached variables in cmake GUIs
+mark_as_advanced(ARPACK_LIBRARY)
+
+# if headers are found, store results
+if(ARPACK_FOUND)
+  set(ARPACK_LIBRARIES ${ARPACK_LIBRARY})
+  # log result
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determing location of ARPACK succeeded:\n"
+    "Libraries to link against: ${ARPACK_LIBRARIES}\n\n")
+else()
+  # log errornous result
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+    "Determing location of ARPACK failed:\n"
+    "Libraries to link against: ${ARPACK_LIBRARIES}\n\n")
+endif()