171 lines
4.9 KiB
CMake
171 lines
4.9 KiB
CMake
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# Try to find gnu scientific library GSL
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# See
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# http://www.gnu.org/software/gsl/ and
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# http://gnuwin32.sourceforge.net/packages/gsl.htm
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#
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# Once run this will define:
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#
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# GSL_FOUND = system has GSL lib
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#
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# GSL_LIBRARIES = full path to the libraries
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# on Unix/Linux with additional linker flags from "gsl-config --libs"
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#
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# CMAKE_GSL_CXX_FLAGS = Unix compiler flags for GSL, essentially "`gsl-config --cxxflags`"
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#
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# GSL_INCLUDE_DIR = where to find headers
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#
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# GSL_LINK_DIRECTORIES = link directories, useful for rpath on Unix
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# GSL_EXE_LINKER_FLAGS = rpath on Unix
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#
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# Felix Woelk 07/2004
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# Jan Woetzel
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#
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# www.mip.informatik.uni-kiel.de
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# --------------------------------
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if(WIN32)
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# JW tested with gsl-1.8, Windows XP, MSVS 7.1
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set(GSL_POSSIBLE_ROOT_DIRS
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${GSL_ROOT_DIR}
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$ENV{GSL_ROOT_DIR}
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${GSL_DIR}
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${GSL_HOME}
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$ENV{GSL_DIR}
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$ENV{GSL_HOME}
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$ENV{EXTRA}
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"C:/Program Files/GnuWin32"
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)
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find_path(GSL_INCLUDE_DIR
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NAMES gsl/gsl_cdf.h gsl/gsl_randist.h
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PATHS ${GSL_POSSIBLE_ROOT_DIRS}
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PATH_SUFFIXES include
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DOC "GSL header include dir"
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)
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find_library(GSL_GSL_LIBRARY
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NAMES libgsl.dll.a gsl libgsl
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PATHS ${GSL_POSSIBLE_ROOT_DIRS}
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PATH_SUFFIXES lib
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DOC "GSL library" )
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if(NOT GSL_GSL_LIBRARY)
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find_file(GSL_GSL_LIBRARY
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NAMES libgsl.dll.a
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PATHS ${GSL_POSSIBLE_ROOT_DIRS}
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PATH_SUFFIXES lib
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DOC "GSL library")
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endif()
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find_library(GSL_GSLCBLAS_LIBRARY
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NAMES libgslcblas.dll.a gslcblas libgslcblas
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PATHS ${GSL_POSSIBLE_ROOT_DIRS}
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PATH_SUFFIXES lib
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DOC "GSL cblas library dir" )
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if(NOT GSL_GSLCBLAS_LIBRARY)
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find_file(GSL_GSLCBLAS_LIBRARY
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NAMES libgslcblas.dll.a
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PATHS ${GSL_POSSIBLE_ROOT_DIRS}
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PATH_SUFFIXES lib
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DOC "GSL library")
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endif()
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set(GSL_LIBRARIES ${GSL_GSL_LIBRARY})
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#message("DBG\n"
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# "GSL_GSL_LIBRARY=${GSL_GSL_LIBRARY}\n"
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# "GSL_GSLCBLAS_LIBRARY=${GSL_GSLCBLAS_LIBRARY}\n"
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# "GSL_LIBRARIES=${GSL_LIBRARIES}")
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else(WIN32)
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if(UNIX)
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set(GSL_CONFIG_PREFER_PATH
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"$ENV{GSL_DIR}/bin"
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"$ENV{GSL_DIR}"
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"$ENV{GSL_HOME}/bin"
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"$ENV{GSL_HOME}"
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CACHE STRING "preferred path to GSL (gsl-config)")
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find_program(GSL_CONFIG gsl-config
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${GSL_CONFIG_PREFER_PATH}
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/usr/bin/
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)
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# message("DBG GSL_CONFIG ${GSL_CONFIG}")
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if (GSL_CONFIG)
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# set CXXFLAGS to be fed into CXX_FLAGS by the user:
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set(GSL_CXX_FLAGS "`${GSL_CONFIG} --cflags`")
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# set INCLUDE_DIRS to prefix+include
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exec_program(${GSL_CONFIG}
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ARGS --prefix
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OUTPUT_VARIABLE GSL_PREFIX)
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set(GSL_INCLUDE_DIR ${GSL_PREFIX}/include CACHE STRING INTERNAL)
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# set link libraries and link flags
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#set(GSL_LIBRARIES "`${GSL_CONFIG} --libs`")
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exec_program(${GSL_CONFIG}
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ARGS --libs
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OUTPUT_VARIABLE GSL_LIBRARIES )
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# extract link dirs for rpath
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exec_program(${GSL_CONFIG}
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ARGS --libs
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OUTPUT_VARIABLE GSL_CONFIG_LIBS )
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# extract version
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exec_program(${GSL_CONFIG}
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ARGS --version
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OUTPUT_VARIABLE GSL_FULL_VERSION )
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# split version as major/minor
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string(REGEX MATCH "(.)\\..*" GSL_VERSION_MAJOR_ "${GSL_FULL_VERSION}")
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set(GSL_VERSION_MAJOR ${CMAKE_MATCH_1})
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string(REGEX MATCH ".\\.(.*)" GSL_VERSION_MINOR_ "${GSL_FULL_VERSION}")
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set(GSL_VERSION_MINOR ${CMAKE_MATCH_1})
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# split off the link dirs (for rpath)
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# use regular expression to match wildcard equivalent "-L*<endchar>"
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# with <endchar> is a space or a semicolon
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string(REGEX MATCHALL "[-][L]([^ ;])+"
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GSL_LINK_DIRECTORIES_WITH_PREFIX
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"${GSL_CONFIG_LIBS}" )
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# message("DBG GSL_LINK_DIRECTORIES_WITH_PREFIX=${GSL_LINK_DIRECTORIES_WITH_PREFIX}")
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# remove prefix -L because we need the pure directory for LINK_DIRECTORIES
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if (GSL_LINK_DIRECTORIES_WITH_PREFIX)
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string(REGEX REPLACE "[-][L]" "" GSL_LINK_DIRECTORIES ${GSL_LINK_DIRECTORIES_WITH_PREFIX} )
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endif (GSL_LINK_DIRECTORIES_WITH_PREFIX)
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set(GSL_EXE_LINKER_FLAGS "-Wl,-rpath,${GSL_LINK_DIRECTORIES}" CACHE STRING INTERNAL)
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# message("DBG GSL_LINK_DIRECTORIES=${GSL_LINK_DIRECTORIES}")
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# message("DBG GSL_EXE_LINKER_FLAGS=${GSL_EXE_LINKER_FLAGS}")
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# add_definitions("-DHAVE_GSL")
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# set(GSL_DEFINITIONS "-DHAVE_GSL")
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mark_as_advanced(
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GSL_CXX_FLAGS
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GSL_INCLUDE_DIR
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GSL_LIBRARIES
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GSL_LINK_DIRECTORIES
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GSL_DEFINITIONS
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)
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message(STATUS "Using GSL from ${GSL_PREFIX}")
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else(GSL_CONFIG)
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message("FindGSL.cmake: gsl-config not found. Please set it manually. GSL_CONFIG=${GSL_CONFIG}")
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endif(GSL_CONFIG)
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endif(UNIX)
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endif(WIN32)
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if(GSL_LIBRARIES)
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if(GSL_INCLUDE_DIR OR GSL_CXX_FLAGS)
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set(GSL_FOUND 1)
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endif(GSL_INCLUDE_DIR OR GSL_CXX_FLAGS)
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endif(GSL_LIBRARIES)
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