Squashed 'third_party/eigen/' changes from 61d72f6..cf794d3
Change-Id: I9b814151b01f49af6337a8605d0c42a3a1ed4c72
git-subtree-dir: third_party/eigen
git-subtree-split: cf794d3b741a6278df169e58461f8529f43bce5d
diff --git a/cmake/FindScotch.cmake b/cmake/FindScotch.cmake
index 530340b..89d295a 100644
--- a/cmake/FindScotch.cmake
+++ b/cmake/FindScotch.cmake
@@ -1,24 +1,369 @@
-# Pastix requires SCOTCH or METIS (partitioning and reordering tools)
+###
+#
+# @copyright (c) 2009-2014 The University of Tennessee and The University
+# of Tennessee Research Foundation.
+# All rights reserved.
+# @copyright (c) 2012-2014 Inria. All rights reserved.
+# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
+#
+###
+#
+# - Find SCOTCH include dirs and libraries
+# Use this module by invoking find_package with the form:
+# find_package(SCOTCH
+# [REQUIRED] # Fail with error if scotch is not found
+# [COMPONENTS <comp1> <comp2> ...] # dependencies
+# )
+#
+# COMPONENTS can be some of the following:
+# - ESMUMPS: to activate detection of Scotch with the esmumps interface
+#
+# This module finds headers and scotch library.
+# Results are reported in variables:
+# SCOTCH_FOUND - True if headers and requested libraries were found
+# SCOTCH_INCLUDE_DIRS - scotch include directories
+# SCOTCH_LIBRARY_DIRS - Link directories for scotch libraries
+# SCOTCH_LIBRARIES - scotch component libraries to be linked
+# SCOTCH_INTSIZE - Number of octets occupied by a SCOTCH_Num
+#
+# The user can give specific paths where to find the libraries adding cmake
+# options at configure (ex: cmake path/to/project -DSCOTCH=path/to/scotch):
+# SCOTCH_DIR - Where to find the base directory of scotch
+# SCOTCH_INCDIR - Where to find the header files
+# SCOTCH_LIBDIR - Where to find the library files
+# The module can also look for the following environment variables if paths
+# are not given as cmake variable: SCOTCH_DIR, SCOTCH_INCDIR, SCOTCH_LIBDIR
-if (SCOTCH_INCLUDES AND SCOTCH_LIBRARIES)
- set(SCOTCH_FIND_QUIETLY TRUE)
-endif (SCOTCH_INCLUDES AND SCOTCH_LIBRARIES)
+#=============================================================================
+# Copyright 2012-2013 Inria
+# Copyright 2012-2013 Emmanuel Agullo
+# Copyright 2012-2013 Mathieu Faverge
+# Copyright 2012 Cedric Castagnede
+# Copyright 2013 Florent Pruvost
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file MORSE-Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of Morse, substitute the full
+# License text for the above reference.)
-find_path(SCOTCH_INCLUDES
- NAMES
- scotch.h
- PATHS
- $ENV{SCOTCHDIR}
- ${INCLUDE_INSTALL_DIR}
- PATH_SUFFIXES
- scotch
-)
+if (NOT SCOTCH_FOUND)
+ set(SCOTCH_DIR "" CACHE PATH "Installation directory of SCOTCH library")
+ if (NOT SCOTCH_FIND_QUIETLY)
+ message(STATUS "A cache variable, namely SCOTCH_DIR, has been set to specify the install directory of SCOTCH")
+ endif()
+endif()
+
+# Set the version to find
+set(SCOTCH_LOOK_FOR_ESMUMPS OFF)
+
+if( SCOTCH_FIND_COMPONENTS )
+ foreach( component ${SCOTCH_FIND_COMPONENTS} )
+ if (${component} STREQUAL "ESMUMPS")
+ # means we look for esmumps library
+ set(SCOTCH_LOOK_FOR_ESMUMPS ON)
+ endif()
+ endforeach()
+endif()
+
+# SCOTCH may depend on Threads, try to find it
+if (NOT THREADS_FOUND)
+ if (SCOTCH_FIND_REQUIRED)
+ find_package(Threads REQUIRED)
+ else()
+ find_package(Threads)
+ endif()
+endif()
+
+# Looking for include
+# -------------------
+
+# Add system include paths to search include
+# ------------------------------------------
+unset(_inc_env)
+set(ENV_SCOTCH_DIR "$ENV{SCOTCH_DIR}")
+set(ENV_SCOTCH_INCDIR "$ENV{SCOTCH_INCDIR}")
+if(ENV_SCOTCH_INCDIR)
+ list(APPEND _inc_env "${ENV_SCOTCH_INCDIR}")
+elseif(ENV_SCOTCH_DIR)
+ list(APPEND _inc_env "${ENV_SCOTCH_DIR}")
+ list(APPEND _inc_env "${ENV_SCOTCH_DIR}/include")
+ list(APPEND _inc_env "${ENV_SCOTCH_DIR}/include/scotch")
+else()
+ if(WIN32)
+ string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}")
+ else()
+ string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}")
+ list(APPEND _inc_env "${_path_env}")
+ string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}")
+ list(APPEND _inc_env "${_path_env}")
+ string(REPLACE ":" ";" _path_env "$ENV{CPATH}")
+ list(APPEND _inc_env "${_path_env}")
+ string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}")
+ list(APPEND _inc_env "${_path_env}")
+ endif()
+endif()
+list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}")
+list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}")
+list(REMOVE_DUPLICATES _inc_env)
-find_library(SCOTCH_LIBRARIES scotch PATHS $ENV{SCOTCHDIR} ${LIB_INSTALL_DIR})
+# Try to find the scotch header in the given paths
+# -------------------------------------------------
+# call cmake macro to find the header path
+if(SCOTCH_INCDIR)
+ set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
+ find_path(SCOTCH_scotch.h_DIRS
+ NAMES scotch.h
+ HINTS ${SCOTCH_INCDIR})
+else()
+ if(SCOTCH_DIR)
+ set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
+ find_path(SCOTCH_scotch.h_DIRS
+ NAMES scotch.h
+ HINTS ${SCOTCH_DIR}
+ PATH_SUFFIXES "include" "include/scotch")
+ else()
+ set(SCOTCH_scotch.h_DIRS "SCOTCH_scotch.h_DIRS-NOTFOUND")
+ find_path(SCOTCH_scotch.h_DIRS
+ NAMES scotch.h
+ HINTS ${_inc_env}
+ PATH_SUFFIXES "scotch")
+ endif()
+endif()
+mark_as_advanced(SCOTCH_scotch.h_DIRS)
+# If found, add path to cmake variable
+# ------------------------------------
+if (SCOTCH_scotch.h_DIRS)
+ set(SCOTCH_INCLUDE_DIRS "${SCOTCH_scotch.h_DIRS}")
+else ()
+ set(SCOTCH_INCLUDE_DIRS "SCOTCH_INCLUDE_DIRS-NOTFOUND")
+ if (NOT SCOTCH_FIND_QUIETLY)
+ message(STATUS "Looking for scotch -- scotch.h not found")
+ endif()
+endif()
+list(REMOVE_DUPLICATES SCOTCH_INCLUDE_DIRS)
+
+# Looking for lib
+# ---------------
+
+# Add system library paths to search lib
+# --------------------------------------
+unset(_lib_env)
+set(ENV_SCOTCH_LIBDIR "$ENV{SCOTCH_LIBDIR}")
+if(ENV_SCOTCH_LIBDIR)
+ list(APPEND _lib_env "${ENV_SCOTCH_LIBDIR}")
+elseif(ENV_SCOTCH_DIR)
+ list(APPEND _lib_env "${ENV_SCOTCH_DIR}")
+ list(APPEND _lib_env "${ENV_SCOTCH_DIR}/lib")
+else()
+ if(WIN32)
+ string(REPLACE ":" ";" _lib_env "$ENV{LIB}")
+ else()
+ if(APPLE)
+ string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}")
+ else()
+ string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}")
+ endif()
+ list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}")
+ list(APPEND _lib_env "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
+ endif()
+endif()
+list(REMOVE_DUPLICATES _lib_env)
+
+# Try to find the scotch lib in the given paths
+# ----------------------------------------------
+
+set(SCOTCH_libs_to_find "scotch;scotcherrexit")
+if (SCOTCH_LOOK_FOR_ESMUMPS)
+ list(INSERT SCOTCH_libs_to_find 0 "esmumps")
+endif()
+
+# call cmake macro to find the lib path
+if(SCOTCH_LIBDIR)
+ foreach(scotch_lib ${SCOTCH_libs_to_find})
+ set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
+ find_library(SCOTCH_${scotch_lib}_LIBRARY
+ NAMES ${scotch_lib}
+ HINTS ${SCOTCH_LIBDIR})
+ endforeach()
+else()
+ if(SCOTCH_DIR)
+ foreach(scotch_lib ${SCOTCH_libs_to_find})
+ set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
+ find_library(SCOTCH_${scotch_lib}_LIBRARY
+ NAMES ${scotch_lib}
+ HINTS ${SCOTCH_DIR}
+ PATH_SUFFIXES lib lib32 lib64)
+ endforeach()
+ else()
+ foreach(scotch_lib ${SCOTCH_libs_to_find})
+ set(SCOTCH_${scotch_lib}_LIBRARY "SCOTCH_${scotch_lib}_LIBRARY-NOTFOUND")
+ find_library(SCOTCH_${scotch_lib}_LIBRARY
+ NAMES ${scotch_lib}
+ HINTS ${_lib_env})
+ endforeach()
+ endif()
+endif()
+
+set(SCOTCH_LIBRARIES "")
+set(SCOTCH_LIBRARY_DIRS "")
+# If found, add path to cmake variable
+# ------------------------------------
+foreach(scotch_lib ${SCOTCH_libs_to_find})
+
+ if (SCOTCH_${scotch_lib}_LIBRARY)
+ get_filename_component(${scotch_lib}_lib_path "${SCOTCH_${scotch_lib}_LIBRARY}" PATH)
+ # set cmake variables
+ list(APPEND SCOTCH_LIBRARIES "${SCOTCH_${scotch_lib}_LIBRARY}")
+ list(APPEND SCOTCH_LIBRARY_DIRS "${${scotch_lib}_lib_path}")
+ else ()
+ list(APPEND SCOTCH_LIBRARIES "${SCOTCH_${scotch_lib}_LIBRARY}")
+ if (NOT SCOTCH_FIND_QUIETLY)
+ message(STATUS "Looking for scotch -- lib ${scotch_lib} not found")
+ endif()
+ endif ()
+
+ mark_as_advanced(SCOTCH_${scotch_lib}_LIBRARY)
+
+endforeach()
+list(REMOVE_DUPLICATES SCOTCH_LIBRARY_DIRS)
+
+# check a function to validate the find
+if(SCOTCH_LIBRARIES)
+
+ set(REQUIRED_INCDIRS)
+ set(REQUIRED_LIBDIRS)
+ set(REQUIRED_LIBS)
+
+ # SCOTCH
+ if (SCOTCH_INCLUDE_DIRS)
+ set(REQUIRED_INCDIRS "${SCOTCH_INCLUDE_DIRS}")
+ endif()
+ if (SCOTCH_LIBRARY_DIRS)
+ set(REQUIRED_LIBDIRS "${SCOTCH_LIBRARY_DIRS}")
+ endif()
+ set(REQUIRED_LIBS "${SCOTCH_LIBRARIES}")
+ # THREADS
+ if(CMAKE_THREAD_LIBS_INIT)
+ list(APPEND REQUIRED_LIBS "${CMAKE_THREAD_LIBS_INIT}")
+ endif()
+ set(Z_LIBRARY "Z_LIBRARY-NOTFOUND")
+ find_library(Z_LIBRARY NAMES z)
+ mark_as_advanced(Z_LIBRARY)
+ if(Z_LIBRARY)
+ list(APPEND REQUIRED_LIBS "-lz")
+ endif()
+ set(M_LIBRARY "M_LIBRARY-NOTFOUND")
+ find_library(M_LIBRARY NAMES m)
+ mark_as_advanced(M_LIBRARY)
+ if(M_LIBRARY)
+ list(APPEND REQUIRED_LIBS "-lm")
+ endif()
+ set(RT_LIBRARY "RT_LIBRARY-NOTFOUND")
+ find_library(RT_LIBRARY NAMES rt)
+ mark_as_advanced(RT_LIBRARY)
+ if(RT_LIBRARY)
+ list(APPEND REQUIRED_LIBS "-lrt")
+ endif()
+
+ # set required libraries for link
+ set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
+ set(CMAKE_REQUIRED_LIBRARIES)
+ foreach(lib_dir ${REQUIRED_LIBDIRS})
+ list(APPEND CMAKE_REQUIRED_LIBRARIES "-L${lib_dir}")
+ endforeach()
+ list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}")
+ string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
+
+ # test link
+ unset(SCOTCH_WORKS CACHE)
+ include(CheckFunctionExists)
+ check_function_exists(SCOTCH_graphInit SCOTCH_WORKS)
+ mark_as_advanced(SCOTCH_WORKS)
+
+ if(SCOTCH_WORKS)
+ # save link with dependencies
+ set(SCOTCH_LIBRARIES "${REQUIRED_LIBS}")
+ else()
+ if(NOT SCOTCH_FIND_QUIETLY)
+ message(STATUS "Looking for SCOTCH : test of SCOTCH_graphInit with SCOTCH library fails")
+ message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
+ message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
+ message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
+ endif()
+ endif()
+ set(CMAKE_REQUIRED_INCLUDES)
+ set(CMAKE_REQUIRED_FLAGS)
+ set(CMAKE_REQUIRED_LIBRARIES)
+endif(SCOTCH_LIBRARIES)
+
+if (SCOTCH_LIBRARIES)
+ list(GET SCOTCH_LIBRARIES 0 first_lib)
+ get_filename_component(first_lib_path "${first_lib}" PATH)
+ if (${first_lib_path} MATCHES "/lib(32|64)?$")
+ string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}")
+ set(SCOTCH_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of SCOTCH library" FORCE)
+ else()
+ set(SCOTCH_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of SCOTCH library" FORCE)
+ endif()
+endif()
+mark_as_advanced(SCOTCH_DIR)
+mark_as_advanced(SCOTCH_DIR_FOUND)
+
+# Check the size of SCOTCH_Num
+# ---------------------------------
+set(CMAKE_REQUIRED_INCLUDES ${SCOTCH_INCLUDE_DIRS})
+
+include(CheckCSourceRuns)
+#stdio.h and stdint.h should be included by scotch.h directly
+set(SCOTCH_C_TEST_SCOTCH_Num_4 "
+#include <stdio.h>
+#include <stdint.h>
+#include <scotch.h>
+int main(int argc, char **argv) {
+ if (sizeof(SCOTCH_Num) == 4)
+ return 0;
+ else
+ return 1;
+}
+")
+
+set(SCOTCH_C_TEST_SCOTCH_Num_8 "
+#include <stdio.h>
+#include <stdint.h>
+#include <scotch.h>
+int main(int argc, char **argv) {
+ if (sizeof(SCOTCH_Num) == 8)
+ return 0;
+ else
+ return 1;
+}
+")
+check_c_source_runs("${SCOTCH_C_TEST_SCOTCH_Num_4}" SCOTCH_Num_4)
+if(NOT SCOTCH_Num_4)
+ check_c_source_runs("${SCOTCH_C_TEST_SCOTCH_Num_8}" SCOTCH_Num_8)
+ if(NOT SCOTCH_Num_8)
+ set(SCOTCH_INTSIZE -1)
+ else()
+ set(SCOTCH_INTSIZE 8)
+ endif()
+else()
+ set(SCOTCH_INTSIZE 4)
+endif()
+set(CMAKE_REQUIRED_INCLUDES "")
+
+# check that SCOTCH has been found
+# ---------------------------------
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(SCOTCH DEFAULT_MSG
- SCOTCH_INCLUDES SCOTCH_LIBRARIES)
-
-mark_as_advanced(SCOTCH_INCLUDES SCOTCH_LIBRARIES)
+ SCOTCH_LIBRARIES
+ SCOTCH_WORKS)
+#
+# TODO: Add possibility to check for specific functions in the library
+#