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Diffstat (limited to 'cmake/Modules/FindGSL.cmake')
| -rw-r--r-- | cmake/Modules/FindGSL.cmake | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/cmake/Modules/FindGSL.cmake b/cmake/Modules/FindGSL.cmake new file mode 100644 index 000000000..6d7155284 --- /dev/null +++ b/cmake/Modules/FindGSL.cmake @@ -0,0 +1,146 @@ +# Try to find gnu scientific library GSL +# See +# http://www.gnu.org/software/gsl/ and +# http://gnuwin32.sourceforge.net/packages/gsl.htm +# +# Based on a script of Felix Woelk and Jan Woetzel +# (www.mip.informatik.uni-kiel.de) +# +# It defines the following variables: +# GSL_FOUND - system has GSL lib +# GSL_INCLUDE_DIRS - where to find headers +# GSL_LIBRARIES - full path to the libraries +# GSL_LIBRARY_DIRS, the directory where the PLplot library is found. + +# CMAKE_GSL_CXX_FLAGS = Unix compiler flags for GSL, essentially "`gsl-config --cxxflags`" +# GSL_LINK_DIRECTORIES = link directories, useful for rpath on Unix +# GSL_EXE_LINKER_FLAGS = rpath on Unix + +INCLUDE(FindPkgConfig) +PKG_CHECK_MODULES(GSL "gsl >= 1.10") +IF(NOT GSL_FOUND) + +set( GSL_FOUND OFF ) +set( GSL_CBLAS_FOUND OFF ) + +# Windows, but not for Cygwin and MSys where gsl-config is available +if( WIN32 AND NOT CYGWIN AND NOT MSYS ) + # look for headers + find_path( GSL_INCLUDE_DIRS + NAMES gsl/gsl_cdf.h gsl/gsl_randist.h + ) + if( GSL_INCLUDE_DIRS ) + # look for gsl library + find_library( GSL_LIBRARY + NAMES gsl + ) + if( GSL_LIBRARY ) + set( GSL_INCLUDE_DIRS ${GSL_INCLUDE_DIR} ) + get_filename_component( GSL_LIBRARY_DIRS ${GSL_LIBRARY} PATH ) + set( GSL_FOUND ON ) + endif( GSL_LIBRARY ) + + # look for gsl cblas library + find_library( GSL_CBLAS_LIBRARY + NAMES gslcblas + ) + if( GSL_CBLAS_LIBRARY ) + set( GSL_CBLAS_FOUND ON ) + endif( GSL_CBLAS_LIBRARY ) + + set( GSL_LIBRARIES ${GSL_LIBRARY} ${GSL_CBLAS_LIBRARY} ) + endif( GSL_INCLUDE_DIRS ) + + mark_as_advanced( + GSL_INCLUDE_DIRS + GSL_LIBRARIES + GSL_CBLAS_LIBRARIES + ) +else( WIN32 AND NOT CYGWIN AND NOT MSYS ) + if( UNIX OR MSYS ) + find_program( GSL_CONFIG_EXECUTABLE gsl-config + /usr/bin/ + /usr/local/bin + ) + + if( GSL_CONFIG_EXECUTABLE ) + set( GSL_FOUND ON ) + + # run the gsl-config program to get cxxflags + execute_process( + COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --cflags + OUTPUT_VARIABLE GSL_CFLAGS + RESULT_VARIABLE RET + ERROR_QUIET + ) + if( RET EQUAL 0 ) + string( STRIP "${GSL_CFLAGS}" GSL_CFLAGS ) + separate_arguments( GSL_CFLAGS ) + + # parse definitions from cflags; drop -D* from CFLAGS + string( REGEX MATCHALL "-D[^;]+" + GSL_DEFINITIONS "${GSL_CFLAGS}" ) + string( REGEX REPLACE "-D[^;]+;" "" + GSL_CFLAGS "${GSL_CFLAGS}" ) + + # parse include dirs from cflags; drop -I prefix + string( REGEX MATCHALL "-I[^;]+" + GSL_INCLUDE_DIRS "${GSL_CFLAGS}" ) + string( REPLACE "-I" "" + GSL_INCLUDE_DIRS "${GSL_INCLUDE_DIRS}") + string( REGEX REPLACE "-I[^;]+;" "" + GSL_CFLAGS "${GSL_CFLAGS}") + + message("GSL_DEFINITIONS=${GSL_DEFINITIONS}") + message("GSL_INCLUDE_DIRS=${GSL_INCLUDE_DIRS}") + message("GSL_CFLAGS=${GSL_CFLAGS}") + else( RET EQUAL 0 ) + set( GSL_FOUND FALSE ) + endif( RET EQUAL 0 ) + + # run the gsl-config program to get the libs + execute_process( + COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --libs + OUTPUT_VARIABLE GSL_LIBRARIES + RESULT_VARIABLE RET + ERROR_QUIET + ) + if( RET EQUAL 0 ) + string(STRIP "${GSL_LIBRARIES}" GSL_LIBRARIES ) + separate_arguments( GSL_LIBRARIES ) + + # extract linkdirs (-L) for rpath (i.e., LINK_DIRECTORIES) + string( REGEX MATCHALL "-L[^;]+" + GSL_LIBRARY_DIRS "${GSL_LIBRARIES}" ) + string( REPLACE "-L" "" + GSL_LIBRARY_DIRS "${GSL_LIBRARY_DIRS}" ) + else( RET EQUAL 0 ) + set( GSL_FOUND FALSE ) + endif( RET EQUAL 0 ) + + MARK_AS_ADVANCED( + GSL_CFLAGS + ) + message( STATUS "Using GSL from ${GSL_PREFIX}" ) + else( GSL_CONFIG_EXECUTABLE ) + message( STATUS "FindGSL: gsl-config not found.") + endif( GSL_CONFIG_EXECUTABLE ) + endif( UNIX OR MSYS ) +endif( WIN32 AND NOT CYGWIN AND NOT MSYS ) + +if( GSL_FOUND ) + if( NOT GSL_FIND_QUIETLY ) + message( STATUS "FindGSL: Found both GSL headers and library" ) + endif( NOT GSL_FIND_QUIETLY ) +else( GSL_FOUND ) + if( GSL_FIND_REQUIRED ) + message( FATAL_ERROR "FindGSL: Could not find GSL headers or library" ) + endif( GSL_FIND_REQUIRED ) +endif( GSL_FOUND ) + +#needed for gsl windows port but safe to always define +LIST(APPEND GSL_DEFINITIONS "-DGSL_DLL") + +INCLUDE(FindPackageHandleStandardArgs) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(GSL DEFAULT_MSG GSL_LIBRARIES GSL_INCLUDE_DIRS) +ENDIF(NOT GSL_FOUND) |