diff --git a/modules/find/FindGTG.cmake b/modules/find/FindGTG.cmake
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+++ b/modules/find/FindGTG.cmake
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+###
+#
+# @copyright (c) 2009-2014 The University of Tennessee and The University
+# of Tennessee Research Foundation.
+# All rights reserved.
+# @copyright (c) 2012-2017 Inria. All rights reserved.
+# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
+#
+###
+#
+# - Find GTG include dirs and libraries
+# Use this module by invoking find_package with the form:
+# find_package(GTG
+# [REQUIRED]) # Fail with error if gtg is not found
+#
+# This module finds headers and gtg library.
+# Results are reported in variables:
+# GTG_FOUND - True if headers and requested libraries were found
+# GTG_INCLUDE_DIRS - gtg include directories
+# GTG_LIBRARY_DIRS - Link directories for gtg libraries
+# GTG_LIBRARIES - gtg component libraries to be linked
+#
+# The user can give specific paths where to find the libraries adding cmake
+# options at configure (ex: cmake path/to/project -DGTG_DIR=path/to/gtg):
+# GTG_DIR - Where to find the base directory of gtg
+# GTG_INCDIR - Where to find the header files
+# GTG_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: GTG_DIR, GTG_INCDIR, GTG_LIBDIR
+
+#=============================================================================
+# Copyright 2012-2017 Inria
+# Copyright 2012-2013 Emmanuel Agullo
+# Copyright 2012-2013 Mathieu Faverge
+# Copyright 2012 Cedric Castagnede
+# Copyright 2013-2017 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.)
+
+if (NOT GTG_FOUND)
+ set(GTG_DIR "" CACHE PATH "Installation directory of GTG library")
+ if (NOT GTG_FIND_QUIETLY)
+ message(STATUS "A cache variable, namely GTG_DIR, has been set to specify the install directory of GTG")
+ endif()
+endif()
+
+set(ENV_GTG_DIR "$ENV{GTG_DIR}")
+set(ENV_GTG_INCDIR "$ENV{GTG_INCDIR}")
+set(ENV_GTG_LIBDIR "$ENV{GTG_LIBDIR}")
+set(GTG_GIVEN_BY_USER "FALSE")
+if ( GTG_DIR OR ( GTG_INCDIR AND GTG_LIBDIR) OR ENV_GTG_DIR OR (ENV_GTG_INCDIR AND ENV_GTG_LIBDIR) )
+ set(GTG_GIVEN_BY_USER "TRUE")
+endif()
+
+# Optionally use pkg-config to detect include/library dirs (if pkg-config is available)
+# -------------------------------------------------------------------------------------
+include(FindPkgConfig)
+find_package(PkgConfig QUIET)
+if(PKG_CONFIG_EXECUTABLE AND NOT GTG_GIVEN_BY_USER)
+
+ pkg_search_module(GTG gtg)
+ if (NOT GTG_FIND_QUIETLY)
+ if (GTG_FOUND AND GTG_LIBRARIES)
+ message(STATUS "Looking for GTG - found using PkgConfig")
+ #if(NOT GTG_INCLUDE_DIRS)
+ # message("${Magenta}GTG_INCLUDE_DIRS is empty using PkgConfig."
+ # "Perhaps the path to gtg headers is already present in your"
+ # "C(PLUS)_INCLUDE_PATH environment variable.${ColourReset}")
+ #endif()
+ else()
+ message(STATUS "${Magenta}Looking for GTG - not found using PkgConfig."
+ "\n Perhaps you should add the directory containing gtg.pc to the"
+ "\n PKG_CONFIG_PATH environment variable.${ColourReset}")
+ endif()
+ endif()
+
+endif(PKG_CONFIG_EXECUTABLE AND NOT GTG_GIVEN_BY_USER)
+
+if( (NOT PKG_CONFIG_EXECUTABLE) OR (PKG_CONFIG_EXECUTABLE AND NOT GTG_FOUND) OR (GTG_GIVEN_BY_USER) )
+
+ if (NOT GTG_FIND_QUIETLY)
+ message(STATUS "Looking for GTG - PkgConfig not used")
+ endif()
+
+ # Looking for include
+ # -------------------
+
+ # Add system include paths to search include
+ # ------------------------------------------
+ unset(_inc_env)
+ set(ENV_GTG_DIR "$ENV{GTG_DIR}")
+ set(ENV_GTG_INCDIR "$ENV{GTG_INCDIR}")
+ if(ENV_GTG_INCDIR)
+ list(APPEND _inc_env "${ENV_GTG_INCDIR}")
+ elseif(ENV_GTG_DIR)
+ list(APPEND _inc_env "${ENV_GTG_DIR}")
+ list(APPEND _inc_env "${ENV_GTG_DIR}/include")
+ list(APPEND _inc_env "${ENV_GTG_DIR}/include/gtg")
+ else()
+ if(WIN32)
+ string(REPLACE ":" ";" _inc_env "$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)
+
+ # Try to find the gtg header in the given paths
+ # -------------------------------------------------
+ # call cmake macro to find the header path
+ if(GTG_INCDIR)
+ set(GTG_GTG.h_DIRS "GTG_GTG.h_DIRS-NOTFOUND")
+ find_path(GTG_GTG.h_DIRS
+ NAMES GTG.h
+ HINTS ${GTG_INCDIR})
+ else()
+ if(GTG_DIR)
+ set(GTG_GTG.h_DIRS "GTG_GTG.h_DIRS-NOTFOUND")
+ find_path(GTG_GTG.h_DIRS
+ NAMES GTG.h
+ HINTS ${GTG_DIR}
+ PATH_SUFFIXES "include" "include/gtg")
+ else()
+ set(GTG_GTG.h_DIRS "GTG_GTG.h_DIRS-NOTFOUND")
+ find_path(GTG_GTG.h_DIRS
+ NAMES GTG.h
+ HINTS ${_inc_env}
+ PATH_SUFFIXES "gtg")
+ endif()
+ endif()
+ mark_as_advanced(GTG_GTG.h_DIRS)
+
+ # Add path to cmake variable
+ # ------------------------------------
+ if (GTG_GTG.h_DIRS)
+ set(GTG_INCLUDE_DIRS "${GTG_GTG.h_DIRS}")
+ else ()
+ set(GTG_INCLUDE_DIRS "GTG_INCLUDE_DIRS-NOTFOUND")
+ if(NOT GTG_FIND_QUIETLY)
+ message(STATUS "Looking for gtg -- GTG.h not found")
+ endif()
+ endif ()
+
+ if (GTG_INCLUDE_DIRS)
+ list(REMOVE_DUPLICATES GTG_INCLUDE_DIRS)
+ endif ()
+
+
+ # Looking for lib
+ # ---------------
+
+ # Add system library paths to search lib
+ # --------------------------------------
+ unset(_lib_env)
+ set(ENV_GTG_LIBDIR "$ENV{GTG_LIBDIR}")
+ if(ENV_GTG_LIBDIR)
+ list(APPEND _lib_env "${ENV_GTG_LIBDIR}")
+ elseif(ENV_GTG_DIR)
+ list(APPEND _lib_env "${ENV_GTG_DIR}")
+ list(APPEND _lib_env "${ENV_GTG_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 gtg lib in the given paths
+ # ----------------------------------------------
+
+ # call cmake macro to find the lib path
+ if(GTG_LIBDIR)
+ set(GTG_gtg_LIBRARY "GTG_gtg_LIBRARY-NOTFOUND")
+ find_library(GTG_gtg_LIBRARY
+ NAMES gtg
+ HINTS ${GTG_LIBDIR})
+ else()
+ if(GTG_DIR)
+ set(GTG_gtg_LIBRARY "GTG_gtg_LIBRARY-NOTFOUND")
+ find_library(GTG_gtg_LIBRARY
+ NAMES gtg
+ HINTS ${GTG_DIR}
+ PATH_SUFFIXES lib lib32 lib64)
+ else()
+ set(GTG_gtg_LIBRARY "GTG_gtg_LIBRARY-NOTFOUND")
+ find_library(GTG_gtg_LIBRARY
+ NAMES gtg
+ HINTS ${_lib_env})
+ endif()
+ endif()
+ mark_as_advanced(GTG_gtg_LIBRARY)
+
+ # If found, add path to cmake variable
+ # ------------------------------------
+ if (GTG_gtg_LIBRARY)
+ get_filename_component(gtg_lib_path ${GTG_gtg_LIBRARY} PATH)
+ # set cmake variables (respects naming convention)
+ set(GTG_LIBRARIES "${GTG_gtg_LIBRARY}")
+ set(GTG_LIBRARY_DIRS "${gtg_lib_path}")
+ else ()
+ set(GTG_LIBRARIES "GTG_LIBRARIES-NOTFOUND")
+ set(GTG_LIBRARY_DIRS "GTG_LIBRARY_DIRS-NOTFOUND")
+ if(NOT GTG_FIND_QUIETLY)
+ message(STATUS "Looking for gtg -- lib gtg not found")
+ endif()
+ endif ()
+
+ if (GTG_LIBRARY_DIRS)
+ list(REMOVE_DUPLICATES GTG_LIBRARY_DIRS)
+ endif ()
+
+ # check a function to validate the find
+ if(GTG_LIBRARIES)
+
+ set(REQUIRED_INCDIRS)
+ set(REQUIRED_LIBDIRS)
+ set(REQUIRED_LIBS)
+
+ # GTG
+ if (GTG_INCLUDE_DIRS)
+ set(REQUIRED_INCDIRS "${GTG_INCLUDE_DIRS}")
+ endif()
+ if (GTG_LIBRARY_DIRS)
+ set(REQUIRED_LIBDIRS "${GTG_LIBRARY_DIRS}")
+ endif()
+ set(REQUIRED_LIBS "${GTG_LIBRARIES}")
+
+ # 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(GTG_WORKS CACHE)
+ include(CheckFunctionExists)
+ check_function_exists(initTrace GTG_WORKS)
+ mark_as_advanced(GTG_WORKS)
+
+ if(NOT GTG_WORKS)
+ if(NOT GTG_FIND_QUIETLY)
+ message(STATUS "Looking for gtg : test of GTG_start with gtg library fails")
+ message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
+ message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
+ message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
+ endif()
+ endif()
+ set(CMAKE_REQUIRED_INCLUDES)
+ set(CMAKE_REQUIRED_FLAGS)
+ set(CMAKE_REQUIRED_LIBRARIES)
+ endif(GTG_LIBRARIES)
+
+endif( (NOT PKG_CONFIG_EXECUTABLE) OR (PKG_CONFIG_EXECUTABLE AND NOT GTG_FOUND) OR (GTG_GIVEN_BY_USER) )
+
+if (GTG_LIBRARIES)
+ if (GTG_LIBRARY_DIRS)
+ list(GET GTG_LIBRARY_DIRS 0 first_lib_path)
+ else()
+ list(GET GTG_LIBRARIES 0 first_lib)
+ get_filename_component(first_lib_path "${first_lib}" PATH)
+ endif()
+ if (${first_lib_path} MATCHES "/lib(32|64)?$")
+ string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}")
+ set(GTG_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of GTG library" FORCE)
+ else()
+ set(GTG_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of GTG library" FORCE)
+ endif()
+endif()
+mark_as_advanced(GTG_DIR)
+mark_as_advanced(GTG_DIR_FOUND)
+
+# check that GTG has been found
+# -------------------------------
+include(FindPackageHandleStandardArgs)
+if (PKG_CONFIG_EXECUTABLE AND GTG_FOUND)
+ find_package_handle_standard_args(GTG DEFAULT_MSG
+ GTG_LIBRARIES)
+else()
+ find_package_handle_standard_args(GTG DEFAULT_MSG
+ GTG_LIBRARIES
+ GTG_WORKS)
+endif()