cmake/modules/FindGSL.cmake

0001 # - Find GSL
0002 # Find the GNU Scientific Library (GSL) includes and library
0003 #
0004 # This module defines
0005 #  GSL_FOUND
0006 #  GSL_LIBRARIES
0007 #  GSL_CBLAS_LIBRARIES
0008 #  GSL_INCLUDE_DIR
0009 #  GSL_VERSION
0010 #
0011
0012 include(UsePkgConfig)
0013
0014 if (GSL_INCLUDE_DIR AND GSL_LIBRARIES AND GSL_CBLAS_LIBRARIES AND GSL_VERSION)
0015
0016         # Already in cache
0017         SET(GSL_FOUND TRUE)
0018
0019 else ()
0020
0021         FIND_LIBRARY (GSL_LIBRARIES gsl)
0022
0023         FIND_LIBRARY (GSL_CBLAS_LIBRARIES gslcblas)
0024
0025         FIND_PATH (GSL_INCLUDE_DIR gsl_multimin.h
0026                 /usr/include
0027                 /usr/local/include
0028         ${CMAKE_INCLUDE_PATH}
0029                 PATH_SUFFIXES gsl
0030         )
0031
0032         FIND_PROGRAM (GSL_CONFIG gsl-config)
0033
0034         IF (GSL_CONFIG)
0035                 EXEC_PROGRAM (${GSL_CONFIG} ARGS "--version" OUTPUT_VARIABLE gsl_version)
0036         #       EXEC_PROGRAM (${GSL_CONFIG} ARGS "--cflags" OUTPUT_VARIABLE gsl_include_dir)
0037         #       EXEC_PROGRAM (${GSL_CONFIG} ARGS "--libs" OUTPUT_VARIABLE gsl_libraries)
0038
0039         #       STRING (REGEX REPLACE "-I([^ ]*)" "\\1" GSL_INCLUDE_DIR "${gsl_include_dir}")
0040         #       STRING (REGEX REPLACE "-L([^ ]*)" "\\1" GSL_LIBRARIES "${gsl_libraries}")
0041                 SET (GSL_VERSION ${gsl_version} CACHE STRING "GNU Scientific Library Version")
0042                 # TODO check version! 1.6 suffices?
0043         ENDIF (GSL_CONFIG)
0044
0045         IF (NOT GSL_INCLUDE_DIR OR NOT GSL_CONFIG)
0046                 # Try pkg-config instead, but only for the
0047                 # include directory, since we really need
0048                 # the *LIBRARIES to point to the actual .so's.
0049                 PKGCONFIG(gsl GSL_INCLUDE_DIR dummy dummy dummy)
0050         ENDIF (NOT GSL_INCLUDE_DIR OR NOT GSL_CONFIG)
0051         #
0052         # everything necessary found?
0053         #
0054         IF (GSL_LIBRARIES AND GSL_CBLAS_LIBRARIES AND GSL_INCLUDE_DIR)
0055                 SET (GSL_FOUND TRUE)
0056         ELSE (GSL_LIBRARIES AND GSL_CBLAS_LIBRARIES AND GSL_INCLUDE_DIR)
0057                 SET (GSL_FOUND FALSE)
0058         ENDIF (GSL_LIBRARIES AND GSL_CBLAS_LIBRARIES AND GSL_INCLUDE_DIR)
0059
0060 endif ()
0061
0062
0063 #
0064 # output status
0065 #
0066 if (GSL_FOUND)
0067      if (NOT GSL_FIND_QUIETLY)
0068         MESSAGE (STATUS "Found GNU Scientific Library ${GSL_VERSION}: ${GSL_INCLUDE_DIR} ${GSL_LIBRARIES};${GSL_CBLAS_LIBRARIES}")
0069      endif()
0070 else ()
0071      if (GSL_FIND_REQUIRED)
0072         MESSAGE (STATUS "GNU Scientific Library not found. "
0073                         "Calligra Sheets' solver plugin won't be compiled.")
0074      endif ()
0075 endif ()
0076