Commit fd096a32 authored by PRUVOST Florent's avatar PRUVOST Florent
Browse files

add FindGTG.cmake

parent 6856502f
###
#
# @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()
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