1# Try to find gnu scientific library GSL 2# See 3# http://www.gnu.org/software/gsl/ and 4# http://gnuwin32.sourceforge.net/packages/gsl.htm 5# 6# Once run this will define: 7# 8# GSL_FOUND = system has GSL lib 9# 10# GSL_LIBRARIES = full path to the libraries 11# on Unix/Linux with additional linker flags from "gsl-config --libs" 12# 13# CMAKE_GSL_CXX_FLAGS = Unix compiler flags for GSL, essentially "`gsl-config --cxxflags`" 14# 15# GSL_INCLUDE_DIR = where to find headers 16# 17# GSL_LINK_DIRECTORIES = link directories, useful for rpath on Unix 18# GSL_EXE_LINKER_FLAGS = rpath on Unix 19# 20# Felix Woelk 07/2004 21# Jan Woetzel 22# 23# www.mip.informatik.uni-kiel.de 24# -------------------------------- 25 26if(WIN32) 27 # JW tested with gsl-1.8, Windows XP, MSVS 7.1 28 set(GSL_POSSIBLE_ROOT_DIRS 29 ${GSL_ROOT_DIR} 30 $ENV{GSL_ROOT_DIR} 31 ${GSL_DIR} 32 ${GSL_HOME} 33 $ENV{GSL_DIR} 34 $ENV{GSL_HOME} 35 $ENV{EXTRA} 36 "C:/Program Files/GnuWin32" 37 ) 38 find_path(GSL_INCLUDE_DIR 39 NAMES gsl/gsl_cdf.h gsl/gsl_randist.h 40 PATHS ${GSL_POSSIBLE_ROOT_DIRS} 41 PATH_SUFFIXES include 42 DOC "GSL header include dir" 43 ) 44 45 find_library(GSL_GSL_LIBRARY 46 NAMES libgsl.dll.a gsl libgsl 47 PATHS ${GSL_POSSIBLE_ROOT_DIRS} 48 PATH_SUFFIXES lib 49 DOC "GSL library" ) 50 51 if(NOT GSL_GSL_LIBRARY) 52 find_file(GSL_GSL_LIBRARY 53 NAMES libgsl.dll.a 54 PATHS ${GSL_POSSIBLE_ROOT_DIRS} 55 PATH_SUFFIXES lib 56 DOC "GSL library") 57 endif() 58 59 find_library(GSL_GSLCBLAS_LIBRARY 60 NAMES libgslcblas.dll.a gslcblas libgslcblas 61 PATHS ${GSL_POSSIBLE_ROOT_DIRS} 62 PATH_SUFFIXES lib 63 DOC "GSL cblas library dir" ) 64 65 if(NOT GSL_GSLCBLAS_LIBRARY) 66 find_file(GSL_GSLCBLAS_LIBRARY 67 NAMES libgslcblas.dll.a 68 PATHS ${GSL_POSSIBLE_ROOT_DIRS} 69 PATH_SUFFIXES lib 70 DOC "GSL library") 71 endif() 72 73 set(GSL_LIBRARIES ${GSL_GSL_LIBRARY}) 74 75 #message("DBG\n" 76 # "GSL_GSL_LIBRARY=${GSL_GSL_LIBRARY}\n" 77 # "GSL_GSLCBLAS_LIBRARY=${GSL_GSLCBLAS_LIBRARY}\n" 78 # "GSL_LIBRARIES=${GSL_LIBRARIES}") 79 80 81else(WIN32) 82 83 if(UNIX) 84 set(GSL_CONFIG_PREFER_PATH 85 "$ENV{GSL_DIR}/bin" 86 "$ENV{GSL_DIR}" 87 "$ENV{GSL_HOME}/bin" 88 "$ENV{GSL_HOME}" 89 CACHE STRING "preferred path to GSL (gsl-config)") 90 find_program(GSL_CONFIG gsl-config 91 ${GSL_CONFIG_PREFER_PATH} 92 /usr/bin/ 93 ) 94 # message("DBG GSL_CONFIG ${GSL_CONFIG}") 95 96 if (GSL_CONFIG) 97 # set CXXFLAGS to be fed into CXX_FLAGS by the user: 98 set(GSL_CXX_FLAGS "`${GSL_CONFIG} --cflags`") 99 100 # set INCLUDE_DIRS to prefix+include 101 exec_program(${GSL_CONFIG} 102 ARGS --prefix 103 OUTPUT_VARIABLE GSL_PREFIX) 104 set(GSL_INCLUDE_DIR ${GSL_PREFIX}/include CACHE STRING INTERNAL) 105 106 # set link libraries and link flags 107 #set(GSL_LIBRARIES "`${GSL_CONFIG} --libs`") 108 exec_program(${GSL_CONFIG} 109 ARGS --libs 110 OUTPUT_VARIABLE GSL_LIBRARIES ) 111 112 # extract link dirs for rpath 113 exec_program(${GSL_CONFIG} 114 ARGS --libs 115 OUTPUT_VARIABLE GSL_CONFIG_LIBS ) 116 117 # extract version 118 exec_program(${GSL_CONFIG} 119 ARGS --version 120 OUTPUT_VARIABLE GSL_FULL_VERSION ) 121 122 # split version as major/minor 123 string(REGEX MATCH "(.)\\..*" GSL_VERSION_MAJOR_ "${GSL_FULL_VERSION}") 124 set(GSL_VERSION_MAJOR ${CMAKE_MATCH_1}) 125 string(REGEX MATCH ".\\.(.*)" GSL_VERSION_MINOR_ "${GSL_FULL_VERSION}") 126 set(GSL_VERSION_MINOR ${CMAKE_MATCH_1}) 127 128 # split off the link dirs (for rpath) 129 # use regular expression to match wildcard equivalent "-L*<endchar>" 130 # with <endchar> is a space or a semicolon 131 string(REGEX MATCHALL "[-][L]([^ ;])+" 132 GSL_LINK_DIRECTORIES_WITH_PREFIX 133 "${GSL_CONFIG_LIBS}" ) 134 # message("DBG GSL_LINK_DIRECTORIES_WITH_PREFIX=${GSL_LINK_DIRECTORIES_WITH_PREFIX}") 135 136 # remove prefix -L because we need the pure directory for LINK_DIRECTORIES 137 138 if (GSL_LINK_DIRECTORIES_WITH_PREFIX) 139 string(REGEX REPLACE "[-][L]" "" GSL_LINK_DIRECTORIES ${GSL_LINK_DIRECTORIES_WITH_PREFIX} ) 140 endif (GSL_LINK_DIRECTORIES_WITH_PREFIX) 141 set(GSL_EXE_LINKER_FLAGS "-Wl,-rpath,${GSL_LINK_DIRECTORIES}" CACHE STRING INTERNAL) 142 # message("DBG GSL_LINK_DIRECTORIES=${GSL_LINK_DIRECTORIES}") 143 # message("DBG GSL_EXE_LINKER_FLAGS=${GSL_EXE_LINKER_FLAGS}") 144 145 # add_definitions("-DHAVE_GSL") 146 # set(GSL_DEFINITIONS "-DHAVE_GSL") 147 mark_as_advanced( 148 GSL_CXX_FLAGS 149 GSL_INCLUDE_DIR 150 GSL_LIBRARIES 151 GSL_LINK_DIRECTORIES 152 GSL_DEFINITIONS 153 ) 154 message(STATUS "Using GSL from ${GSL_PREFIX}") 155 156 else(GSL_CONFIG) 157 message("FindGSL.cmake: gsl-config not found. Please set it manually. GSL_CONFIG=${GSL_CONFIG}") 158 endif(GSL_CONFIG) 159 160 endif(UNIX) 161endif(WIN32) 162 163 164if(GSL_LIBRARIES) 165 if(GSL_INCLUDE_DIR OR GSL_CXX_FLAGS) 166 167 set(GSL_FOUND 1) 168 169 endif(GSL_INCLUDE_DIR OR GSL_CXX_FLAGS) 170endif(GSL_LIBRARIES) 171