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#############################################################################
#
# $Id: FindGSL.cmake 4574 2014-01-09 08:48:51Z fspindle $
#
# This file is part of the ViSP software.
# Copyright (C) 2005 - 2014 by INRIA. All rights reserved.
#
# This software is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# ("GPL") version 2 as published by the Free Software Foundation.
# See the file LICENSE.txt at the root directory of this source
# distribution for additional information about the GNU GPL.
#
# For using ViSP with software that can not be combined with the GNU
# GPL, please contact INRIA about acquiring a ViSP Professional
# Edition License.
#
# See http://www.irisa.fr/lagadic/visp/visp.html for more information.
#
# This software was developed at:
# INRIA Rennes - Bretagne Atlantique
# Campus Universitaire de Beaulieu
# 35042 Rennes Cedex
# France
# http://www.irisa.fr/lagadic
#
# If you have questions regarding the use of this file, please contact
# INRIA at visp@inria.fr
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# Description:
# Try to find gnu scientific library GSL
# (see http://www.gnu.org/software/gsl/)
# Once run this will define:
#
# GSL_FOUND = system has GSL lib
#
# GSL_LIBRARIES = full path to the libraries
# on Unix/Linux with additional linker flags from "gsl-config --libs"
#
# GSL_INCLUDE_DIRS = where to find headers
#
# GSL_LINK_DIRECTORIES = link directories, useful for rpath on Unix
# GSL_EXE_LINKER_FLAGS = rpath on Unix
#
# Authors:
# Fabien Spindler
#
#############################################################################
IF(WIN32)
FIND_LIBRARY(GSL_gsl_LIBRARY
NAMES gsl
PATHS
"$ENV{GSL_HOME}/lib"
"$ENV{GSL_DIR}/lib"
DOC "Where can the GSL (gsl.lib) library be found"
)
FIND_LIBRARY(GSL_cblas_LIBRARY
NAMES cblas
PATHS
"$ENV{GSL_HOME}/lib"
"$ENV{GSL_DIR}/lib"
DOC "Where can the GSL (cblas.lib) library be found"
)
FIND_LIBRARY(GSL_gsl_LIBRARY_DEBUG
NAMES gsl_d
PATHS
"$ENV{GSL_HOME}/lib"
"$ENV{GSL_DIR}/lib"
DOC "Where can the GSL (gsl.lib) library be found"
)
FIND_LIBRARY(GSL_cblas_LIBRARY_DEBUG
NAMES cblas_d
PATHS
"$ENV{GSL_HOME}/lib"
"$ENV{GSL_DIR}/lib"
DOC "Where can the GSL (cblas.lib) library be found"
)
SET(GSL_LIBRARIES "optimized" ${GSL_cblas_LIBRARY}
"optimized" ${GSL_gsl_LIBRARY}
"debug" ${GSL_cblas_LIBRARY_DEBUG}
"debug" ${GSL_gsl_LIBRARY_DEBUG})
FIND_PATH(GSL_INCLUDE_DIR gsl/gsl_linalg.h
$ENV{GSL_HOME}/include
$ENV{GSL_DIR}/include
)
IF(GSL_INCLUDE_DIR AND GSL_gsl_LIBRARY AND GSL_cblas_LIBRARY
AND GSL_gsl_LIBRARY_DEBUG AND GSL_cblas_LIBRARY_DEBUG)
SET(GSL_FOUND TRUE)
ELSE(GSL_INCLUDE_DIR AND GSL_gsl_LIBRARY AND GSL_cblas_LIBRARY
AND GSL_gsl_LIBRARY_DEBUG AND GSL_cblas_LIBRARY_DEBUG)
SET(GSL_FOUND FALSE)
ENDIF(GSL_INCLUDE_DIR AND GSL_gsl_LIBRARY AND GSL_cblas_LIBRARY
AND GSL_gsl_LIBRARY_DEBUG AND GSL_cblas_LIBRARY_DEBUG)
MARK_AS_ADVANCED(
GSL_gsl_LIBRARY
GSL_cblas_LIBRARY
GSL_gsl_LIBRARY_DEBUG
GSL_cblas_LIBRARY_DEBUG
GSL_INCLUDE_DIR
GSL_LIBRARIES
GSL_LINK_DIRECTORIES
)
ELSE(WIN32)
IF(UNIX)
FIND_PROGRAM(GSL_CONFIG gsl-config
$ENV{GSL_HOME}/bin
$ENV{GSL_DIR}/bin
/usr/bin
/usr/local/bin
)
#MESSAGE("DBG GSL_CONFIG ${GSL_CONFIG}")
IF (GSL_CONFIG)
# set INCLUDE_DIRS to prefix+include
EXEC_PROGRAM(${GSL_CONFIG}
ARGS --prefix
OUTPUT_VARIABLE GSL_PREFIX)
SET(GSL_INCLUDE_DIR ${GSL_PREFIX}/include)
#MESSAGE(STATUS "Using GSL from ${GSL_PREFIX}")
#MESSAGE("GSL_INCLUDE_DIR ${GSL_INCLUDE_DIR}")
## extract link lib path and name for rpath
EXEC_PROGRAM(${GSL_CONFIG}
ARGS --libs
OUTPUT_VARIABLE GSL_CONFIG_LIBS )
#MESSAGE("GSL_CONFIG_LIBS: ${GSL_CONFIG_LIBS}")
## split off the link dirs (for rpath)
## use regular expression to match wildcard equivalent "-L*<endchar>"
## with <endchar> is a space or a semicolon
STRING(REGEX MATCHALL "[-][L]([^ ;])+"
GSL_LINK_DIRECTORIES_WITH_PREFIX
"${GSL_CONFIG_LIBS}" )
SET(GSL_LINK_DIRECTORIES "")
#MESSAGE("DBG GSL_LINK_DIRECTORIES_WITH_PREFIX=${GSL_LINK_DIRECTORIES_WITH_PREFIX}")
## remove prefix -L because we need the pure directory for LINK_DIRECTORIES
IF (GSL_LINK_DIRECTORIES_WITH_PREFIX)
STRING(REGEX REPLACE "[-][L]" "" GSL_LINK_DIRECTORIES ${GSL_LINK_DIRECTORIES_WITH_PREFIX} )
ENDIF (GSL_LINK_DIRECTORIES_WITH_PREFIX)
## Check if link directory is empty. This can occur with GSL-1.6
## In that case we force the link directory to be ${GSL_PREFIX}/lib
IF(GSL_LINK_DIRECTORIES MATCHES "")
#MESSAGE("DBG GSL_LINK_DIRECTORIES is empty")
SET(GSL_LINK_DIRECTORIES "${GSL_PREFIX}/lib")
ENDIF(GSL_LINK_DIRECTORIES MATCHES "")
#MESSAGE("DBG GSL_LINK_DIRECTORIES=${GSL_LINK_DIRECTORIES}")
# IF(NOT APPLE)
# SET(GSL_EXE_LINKER_FLAGS "-Wl,-rpath,${GSL_LINK_DIRECTORIES}")
# ENDIF(NOT APPLE)
#MESSAGE("DBG GSL_EXE_LINKER_FLAGS=${GSL_EXE_LINKER_FLAGS}")
## use regular expression to match wildcard equivalent "-l*<endchar>"
## with <endchar> is a space or a semicolon
STRING(REGEX MATCHALL "[-][l]([^ ;])+"
GSL_LINK_LIBRARIES
"${GSL_CONFIG_LIBS}" )
#MESSAGE("DBG GSL_LINK_LIBRARIES=${GSL_LINK_LIBRARIES}")
# Because in GSL_LINK_LIBRARIES defs are separated by ";", parse the
# GSL_LINK_LIBRARIES in order to build a space separated string
#message(GSL_LINK_LIBRARIES ${GSL_LINK_LIBRARIES})
SET(GSL_LIB_ONES "")
FOREACH(libs ${GSL_LINK_LIBRARIES})
STRING(REGEX REPLACE "[-][l]" "" GSL_LIB_ONES ${libs})
#MESSAGE("GSL_LIB_ONES=${GSL_LIB_ONES} - ${libs}")
if(NOT ${GSL_LIB_ONES} MATCHES "gslcblas")
MARK_AS_ADVANCED(LIBGSL_${GSL_LIB_ONES})
FIND_LIBRARY(LIBGSL_${GSL_LIB_ONES}
NAMES ${GSL_LIB_ONES}
PATHS
${GSL_LINK_DIRECTORIES}
/usr/lib
/usr/local/lib
)
#MESSAGE("LIBGSL_${GSL_LIB_ONES} ${LIBGSL_${GSL_LIB_ONES}}")
IF(LIBGSL_${GSL_LIB_ONES})
#MESSAGE("LIB_GSL=${LIB_GSL} - ${libs}")
LIST(APPEND GSL_LIBRARIES ${LIBGSL_${GSL_LIB_ONES}})
ENDIF()
endif()
ENDFOREACH(libs)
#MESSAGE("GSL_LIBRARIES=${GSL_LIBRARIES}")
#ELSE(GSL_CONFIG)
# MESSAGE("FindGSL.cmake: gsl-config not found. Please set it manually. GSL_CONFIG=${GSL_CONFIG}")
ENDIF(GSL_CONFIG)
IF(GSL_INCLUDE_DIR AND GSL_LIBRARIES)
# The material is found. Check if it works on the requested architecture
include(CheckCXXSourceCompiles)
SET(CMAKE_REQUIRED_LIBRARIES ${GSL_LIBRARIES})
SET(CMAKE_REQUIRED_INCLUDES ${GSL_INCLUDE_DIR})
CHECK_CXX_SOURCE_COMPILES("
#include <gsl/gsl_linalg.h> // Contrib for GSL library
#include <gsl/gsl_math.h>
#include <gsl/gsl_eigen.h>
int main()
{
gsl_matrix *A = gsl_matrix_alloc(6, 6) ;
}
" GSL_BUILD_TEST)
#MESSAGE("GSL_BUILD_TEST: ${GSL_BUILD_TEST}")
IF(GSL_BUILD_TEST)
SET(GSL_INCLUDE_DIRS ${GSL_INCLUDE_DIR})
SET(GSL_LIBRARIES ${GSL_LIBRARIES})
SET(GSL_FOUND TRUE)
ELSE()
SET(GSL_FOUND FALSE)
#MESScAGE("libgsl library found but not compatible with architecture.")
ENDIF()
ELSE(GSL_INCLUDE_DIR AND GSL_LIBRARIES)
SET(GSL_FOUND FALSE)
ENDIF(GSL_INCLUDE_DIR AND GSL_LIBRARIES)
MARK_AS_ADVANCED(
GSL_INCLUDE_DIR
GSL_INCLUDE_DIRS
GSL_LIBRARIES
GSL_LINK_DIRECTORIES
GSL_CONFIG
)
ENDIF(UNIX)
ENDIF(WIN32)
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