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153 lines
4.4 KiB
153 lines
4.4 KiB
# 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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# Based on a script of Felix Woelk and Jan Woetzel
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# (www.mip.informatik.uni-kiel.de)
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#
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# It defines the following variables:
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# GSL_FOUND - system has GSL lib
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# GSL_INCLUDE_DIRS - where to find headers
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# GSL_LIBRARIES - full path to the libraries
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# GSL_LIBRARY_DIRS, the directory where the PLplot library is found.
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# GSL_CFLAGS, additional c (c++) required
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message(STATUS "Look for GSL in folder: $ENV{GSL_DIR}")
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set( GSL_FOUND OFF )
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set( GSL_CBLAS_FOUND OFF )
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if(GSL_INCLUDE_DIR OR GSL_CONFIG_EXECUTABLE)
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set(GSL_FIND_QUIETLY 1)
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endif()
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# Windows, but not for Cygwin and MSys where gsl-config is available
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if( WIN32 AND NOT CYGWIN AND NOT MSYS )
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# look for headers
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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 $ENV{GSL_DIR}/include ${GSL_DIR}/include
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)
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if( GSL_INCLUDE_DIR )
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# look for gsl library
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find_library( GSL_LIBRARY
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NAMES gsl
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PATHS $ENV{GSL_DIR}/lib ${GSL_DIR}/lib
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)
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if( GSL_LIBRARY )
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set( GSL_INCLUDE_DIRS ${GSL_INCLUDE_DIR} )
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get_filename_component( GSL_LIBRARY_DIRS ${GSL_LIBRARY} PATH )
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set( GSL_FOUND ON )
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endif( GSL_LIBRARY )
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# look for gsl cblas library
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find_library( GSL_CBLAS_LIBRARY
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NAMES gslcblas
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PATHS $ENV{GSL_DIR}/lib ${GSL_DIR}/lib
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)
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if( GSL_CBLAS_LIBRARY )
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set( GSL_CBLAS_FOUND ON )
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endif( GSL_CBLAS_LIBRARY )
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set( GSL_LIBRARIES ${GSL_LIBRARY} ${GSL_CBLAS_LIBRARY} )
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set( GSL_CFLAGS "-DGSL_DLL")
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endif( GSL_INCLUDE_DIR )
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mark_as_advanced(
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GSL_INCLUDE_DIR
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GSL_LIBRARY
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GSL_CBLAS_LIBRARY
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)
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else( WIN32 AND NOT CYGWIN AND NOT MSYS )
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if( UNIX OR MSYS )
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find_program( GSL_CONFIG_EXECUTABLE gsl-config
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$ENV{GSL_DIR}/bin
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${GSL_DIR}/bin
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/usr/bin/
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/usr/local/bin
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)
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if( GSL_CONFIG_EXECUTABLE )
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set( GSL_FOUND ON )
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# run the gsl-config program to get cxxflags
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execute_process(
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COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --cflags
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OUTPUT_VARIABLE GSL_CFLAGS
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RESULT_VARIABLE RET
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ERROR_QUIET
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)
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if( RET EQUAL 0 )
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string( STRIP "${GSL_CFLAGS}" GSL_CFLAGS )
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separate_arguments( GSL_CFLAGS )
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# parse definitions from cflags; drop -D* from CFLAGS
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string( REGEX MATCHALL "-D[^;]+"
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GSL_DEFINITIONS "${GSL_CFLAGS}" )
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string( REGEX REPLACE "-D[^;]+;" ""
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GSL_CFLAGS "${GSL_CFLAGS}" )
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# parse include dirs from cflags; drop -I prefix
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string( REGEX MATCHALL "-I[^;]+"
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GSL_INCLUDE_DIRS "${GSL_CFLAGS}" )
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string( REPLACE "-I" ""
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GSL_INCLUDE_DIRS "${GSL_INCLUDE_DIRS}")
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string( REGEX REPLACE "-I[^;]+;" ""
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GSL_CFLAGS "${GSL_CFLAGS}")
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else( RET EQUAL 0 )
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set( GSL_FOUND FALSE )
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endif( RET EQUAL 0 )
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# run the gsl-config program to get the libs
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execute_process(
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COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --libs
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OUTPUT_VARIABLE GSL_LIBRARIES
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RESULT_VARIABLE RET
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ERROR_QUIET
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)
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if( RET EQUAL 0 )
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string(STRIP "${GSL_LIBRARIES}" GSL_LIBRARIES )
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separate_arguments( GSL_LIBRARIES )
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# extract linkdirs (-L) for rpath (i.e., LINK_DIRECTORIES)
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string( REGEX MATCHALL "-L[^;]+"
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GSL_LIBRARY_DIRS "${GSL_LIBRARIES}" )
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string( REPLACE "-L" ""
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GSL_LIBRARY_DIRS "${GSL_LIBRARY_DIRS}" )
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else( RET EQUAL 0 )
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set( GSL_FOUND FALSE )
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endif( RET EQUAL 0 )
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MARK_AS_ADVANCED(
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GSL_CFLAGS
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)
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if(NOT GSL_FIND_QUIETLY)
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execute_process(
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COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --prefix
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OUTPUT_VARIABLE GSL_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE)
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message( STATUS "Using GSL from ${GSL_PREFIX}")
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endif()
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else( GSL_CONFIG_EXECUTABLE )
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message( STATUS "FindGSL: gsl-config not found.")
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endif( GSL_CONFIG_EXECUTABLE )
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endif( UNIX OR MSYS )
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endif( WIN32 AND NOT CYGWIN AND NOT MSYS )
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if( GSL_FOUND )
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if( NOT GSL_FIND_QUIETLY )
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message( STATUS "Found GSL: ${GSL_INCLUDE_DIRS} ${GSL_LIBRARIES}" )
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endif( NOT GSL_FIND_QUIETLY )
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else( GSL_FOUND )
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if( GSL_FIND_REQUIRED )
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message( FATAL_ERROR "FindGSL: Could not find GSL headers or library" )
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endif( GSL_FIND_REQUIRED )
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endif( GSL_FOUND )
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mark_as_advanced(
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GSL_CONFIG_EXECUTABLE
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GSL_INCLUDE_DIR
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GSL_LIBRARY
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GSL_CBLAS_LIBRARY
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)
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