mirror of
https://github.com/qgis/QGIS.git
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9b335acd64
git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@6522 c8812cc2-4d05-0410-92ff-de0c093fc19c
114 lines
3.4 KiB
CMake
114 lines
3.4 KiB
CMake
##
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## Try to find gnu scientific library GSL
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## (see http://www.gnu.org/software/gsl/)
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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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## minor corrections Jan Woetzel
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##
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## www.mip.informatik.uni-kiel.de
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## --------------------------------
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##
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IF(WIN32)
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SET(GSL_PREFIX "c:/msys/local" CACHE PATH "Path to GSL directory")
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FIND_LIBRARY(GSL_LIB gsl PATHS ${GSL_PREFIX}/lib)
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FIND_LIBRARY(GSLCBLAS_LIB gslcblas PATHS ${GSL_PREFIX}/lib)
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FIND_PATH(GSL_INCLUDE_DIR gsl/gsl_version.h ${GSL_PREFIX}/include)
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IF (GSL_LIB AND GSLCBLAS_LIB)
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SET (GSL_LIBRARIES ${GSL_LIB} ${GSLCBLAS_LIB})
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ENDIF (GSL_LIB AND GSLCBLAS_LIB)
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ELSE(WIN32)
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IF(UNIX)
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SET(GSL_CONFIG_PREFER_PATH "$ENV{GSL_HOME}/bin" 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/local/bin/
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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 ${GSL_PREFIX}/include CACHE STRING INTERNAL)
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# set link libraries and link flags
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EXEC_PROGRAM(${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(${GSL_CONFIG}
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ARGS --libs
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OUTPUT_VARIABLE GSL_CONFIG_LIBS )
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## split off the link dirs (for rpath)
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## use regular expression to match wildcard equivalent "-L*<endchar>"
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## with <endchar> is a space or a semicolon
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STRING(REGEX MATCHALL "[-][L]([^ ;])+"
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GSL_LINK_DIRECTORIES_WITH_PREFIX
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"${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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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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MESSAGE(STATUS "Using GSL from ${GSL_PREFIX}")
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ENDIF(GSL_INCLUDE_DIR OR GSL_CXX_FLAGS)
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ENDIF(GSL_LIBRARIES)
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