cmake/FindFASTJET.cmake

   1 # **************************************************************************
   2 # * Copyright(c) 1998-2014, ALICE Experiment at CERN, All rights reserved. *
   3 # *                                                                        *
   4 # * Author: The ALICE Off-line Project.                                    *
   5 # * Contributors are mentioned in the code where appropriate.              *
   6 # *                                                                        *
   7 # * Permission to use, copy, modify and distribute this software and its   *
   8 # * documentation strictly for non-commercial purposes is hereby granted   *
   9 # * without fee, provided that the above copyright notice appears in all   *
  10 # * copies and that both the copyright notice and this permission notice   *
  11 # * appear in the supporting documentation. The authors make no claims     *
  12 # * about the suitability of this software for any purpose. It is          *
  13 # * provided "as is" without express or implied warranty.                  *
  14 # **************************************************************************
  15
  16 # AliRoot Build System Module to find and configure FASTJET
  17 # Author: Marco van Leeuwen
  18 # FastJet installation is pointed during cmake configuration -DFASTJET
  19 # Variables set during Find:
  20 # - FASTJET_CONFIG - fastjet-config location
  21 # - FASTJET_VERSION
  22 # - FASTJET_VERSION_MAJOR
  23 # - FASTJET_VERSION_MINOR
  24 # - FASTJET_VERSION_PATCH
  25 # - FASTJET_INCLUDE_DIR - fastjet headers location
  26 # - FASTJET_LIBS_DIR - fastjet libraries location
  27 # - FASTJET_DEFINITIONS - fastjet definition flags
  28 # - FASTJET_CXXFLAGS - fastjet compilation flags
  29 # - FASTJET_LIBS - fastjet libraries - array
  30
  31 set(FASTJET_FOUND FALSE)
  32
  33 if(FASTJET)
  34     # Check for fastjet-config script
  35     find_program(FASTJET_CONFIG NAMES fastjet-config PATHS ${FASTJET}/bin NO_DEFAULT_PATH)
  36     if(NOT FASTJET_CONFIG)
  37         message(FATAL_ERROR "Could not find fastjet-config executable")
  38     endif(NOT FASTJET_CONFIG)
  39
  40     # Check for header installation
  41     find_path(FASTJETHH include/fastjet/PseudoJet.hh PATHS ${FASTJET})
  42
  43     if (FASTJETHH-NOTFOUND)
  44         message(FATAL_ERROR "Header file fastjet/PseudoJet.hh not found in ${FASTJET}/include. Please check your FASTJET installation")
  45     endif(FASTJETHH-NOTFOUND)
  46
  47     # FastJet version
  48     execute_process(COMMAND ${FASTJET_CONFIG} --version OUTPUT_VARIABLE FASTJET_VERSION ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  49     if(error)
  50         message(FATAL_ERROR "Error retrieving FastJet version : ${error}")
  51     endif(error)
  52
  53     # Extract major, minor, and patch versions from
  54     string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" FASTJET_VERSION_MAJOR "${FASTJET_VERSION}")
  55     string(REGEX REPLACE "^[0-9]+\\.([0-9])+\\.[0-9]+.*" "\\1" FASTJET_VERSION_MINOR "${FASTJET_VERSION}")
  56     string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" FASTJET_VERSION_PATCH "${FASTJET_VERSION}")
  57
  58     if(FASTJET_VERSION_MAJOR LESS 3)
  59         message(FATAL_ERROR "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} version is not suported. Please install a version >= 3.0.*")
  60     endif()
  61
  62     if(FASTJET_VERSION_MINOR GREATER 0)
  63         message(FATAL_ERROR "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} version is not suported.  Please install a version >= 3.0.*")
  64     endif()
  65
  66     # Extracting compilation flags
  67     execute_process(COMMAND ${FASTJET_CONFIG} --cxxflags OUTPUT_VARIABLE FASTJET_CXXFLAGS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  68     if(error)
  69         message(FATAL_ERROR "Error retrieving FastJet compilation flags : ${error}")
  70     endif(error)
  71
  72     # Extracting the include path from the CXX flags
  73     set(FASTJET_INCLUDE_DIR)
  74     if(FASTJET_CXXFLAGS)
  75         string(STRIP ${FASTJET_CXXFLAGS} FASTJET_CXXFLAGS)
  76         string(REGEX MATCHALL  "[-][I]([^ ])+" incfolders ${FASTJET_CXXFLAGS})
  77
  78         foreach(incfolder ${incfolders})
  79             string(REPLACE "-I" "" incfolder ${incfolder})
  80             set(FASTJET_INCLUDE_DIR ${incfolder} ${FASTJET_INCLUDE_DIR})
  81         endforeach()
  82     endif(FASTJET_CXXFLAGS)
  83
  84     # Extracting libraries and linking options
  85     execute_process(COMMAND ${FASTJET_CONFIG} --libs OUTPUT_VARIABLE FASTJET_CONFIGLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  86     if(error)
  87         message(FATAL_ERROR "Error retrieving FastJet libs : ${error}")
  88     endif(error)
  89
  90     # Extracting the list of needed libraries during linking and the linking folders
  91     set(FASTJET_LIBS)
  92     set(FASTJET_LIBS_DIR)
  93     if(FASTJET_CONFIGLIBS)
  94         string(STRIP ${FASTJET_CONFIGLIBS} FASTJET_CONFIGLIBS)
  95
  96         # Extracting the list of libraries needed during linking
  97         # -l strings
  98         string(REGEX MATCHALL "[-][l]([^ ])+" fjlibs "${FASTJET_CONFIGLIBS}")
  99
 100         foreach(flib ${fjlibs})
 101             string(REPLACE "-l" "" flib "${flib}")
 102             set(FASTJET_LIBS ${FASTJET_LIBS} ${flib})
 103         endforeach()
 104
 105         # Extracting the list of libraries folders
 106         # -L strings
 107         string(REGEX MATCHALL "[-][L]([^ ])+" fjlibdirs "${FASTJET_CONFIGLIBS}")
 108
 109         foreach(fjlibdir ${fjlibdirs})
 110             string(REPLACE "-L" "" fjlibdir ${fjlibdir})
 111             set(FASTJET_LIBS_DIR ${fjlibdir} ${FASTJET_LIBS_DIR})
 112         endforeach()
 113     endif()
 114
 115     set(FASTJET_FOUND TRUE)
 116     set(FASTJET_DEFINITIONS "-DHAVE_FASTJET")
 117     message(STATUS "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} installation found: ${FASTJET}")
 118 else()
 119     message(STATUS "FastJet not found: disabling dependencies")
 120 endif(FASTJET)