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FindGSL.cmake
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FindGSL.cmake
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#--------------------------------------------------------------------------------
# Copyright (c) 2012-2013, Lars Baehren <[email protected]>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#--------------------------------------------------------------------------------
# - Check for the presence of GSL
#
# The following variables are set when GSL is found:
# GSL_FOUND = Set to true, if all components of GSL have been found.
# GSL_INCLUDES = Include path for the header files of GSL
# GSL_LIBRARIES = Link these to use GSL
# GSL_LFLAGS = Linker flags (optional)
if (NOT GSL_FOUND)
if (NOT GSL_ROOT_DIR)
set (GSL_ROOT_DIR ${CMAKE_INSTALL_PREFIX})
endif (NOT GSL_ROOT_DIR)
##_____________________________________________________________________________
## Check for the header files
find_path (GSL_INCLUDES
NAMES gsl_version.h gsl_sys.h gsl_nan.h
HINTS ${GSL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
PATH_SUFFIXES include include/gsl
)
##_____________________________________________________________________________
## Check for the library
set (GSL_LIBRARIES "")
find_library (GSL_GSL_LIBRARY gsl
HINTS ${GSL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
PATH_SUFFIXES lib
)
if (GSL_GSL_LIBRARY)
list (APPEND GSL_LIBRARIES ${GSL_GSL_LIBRARY})
endif (GSL_GSL_LIBRARY)
find_library (GSL_GSLCBLAS_LIBRARY gslcblas
HINTS ${GSL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
PATH_SUFFIXES lib
)
if (GSL_GSLCBLAS_LIBRARY)
list (APPEND GSL_LIBRARIES ${GSL_GSLCBLAS_LIBRARY})
endif (GSL_GSLCBLAS_LIBRARY)
##_____________________________________________________________________________
## Check for the executable
find_program (GSL_CONFIG_EXECUTABLE gsl-config
HINTS ${GSL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
PATH_SUFFIXES bin bin/gsl gsl/bin
)
##_____________________________________________________________________________
## Deteemine version number
if (GSL_CONFIG_EXECUTABLE)
execute_process (
COMMAND ${GSL_CONFIG_EXECUTABLE} --version
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
RESULT_VARIABLE GSL_CONFIG_RESULT
OUTPUT_VARIABLE GSL_VERSION
ERROR_VARIABLE GSL_CONFIG_ERROR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE ".*([0-9]+).[0-9]+.[0-9]+.*" "\\1"
GSL_VERSION_MAJOR ${GSL_VERSION})
string(REGEX REPLACE ".*[0-9]+.([0-9]+).[0-9]+.*" "\\1"
GSL_VERSION_MINOR ${GSL_VERSION})
string(REGEX REPLACE ".*[0-9]+.[0-9]+.([0-9]+).*" "\\1"
GSL_VERSION_PATCH ${GSL_VERSION})
endif (GSL_CONFIG_EXECUTABLE)
##_____________________________________________________________________________
## Actions taken when all components have been found
find_package_handle_standard_args (GSL DEFAULT_MSG GSL_LIBRARIES GSL_INCLUDES)
if (GSL_FOUND)
if (NOT GSL_FIND_QUIETLY)
message (STATUS "Found components for GSL")
message (STATUS "GSL_ROOT_DIR = ${GSL_ROOT_DIR}")
message (STATUS "GSL_INCLUDES = ${GSL_INCLUDES}")
message (STATUS "GSL_LIBRARIES = ${GSL_LIBRARIES}")
message (STATUS "GSL_VERSION = ${GSL_VERSION}")
endif (NOT GSL_FIND_QUIETLY)
else (GSL_FOUND)
if (GSL_FIND_REQUIRED)
message (FATAL_ERROR "Could not find GSL!")
endif (GSL_FIND_REQUIRED)
endif (GSL_FOUND)
##_____________________________________________________________________________
## Mark advanced variables
mark_as_advanced (
GSL_ROOT_DIR
GSL_INCLUDES
GSL_LIBRARIES
)
endif (NOT GSL_FOUND)