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     mark_as_advanced(FASTJET_CONFIG)
  40
  41     # Check for header installation
  42     find_path(FASTJETHH include/fastjet/PseudoJet.hh PATHS ${FASTJET})
  43
  44     if (FASTJETHH-NOTFOUND)
  45         message(FATAL_ERROR "Header file fastjet/PseudoJet.hh not found in ${FASTJET}/include. Please check your FASTJET installation")
  46     endif(FASTJETHH-NOTFOUND)
  47     mark_as_advanced(FASTJETHH)
  48
  49     # FastJet version
  50     execute_process(COMMAND ${FASTJET_CONFIG} --version OUTPUT_VARIABLE FASTJET_VERSION ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  51     if(error)
  52         message(FATAL_ERROR "Error retrieving FastJet version : ${error}")
  53     endif(error)
  54
  55     # Extract major, minor, and patch versions from
  56     string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" FASTJET_VERSION_MAJOR "${FASTJET_VERSION}")
  57     string(REGEX REPLACE "^[0-9]+\\.([0-9])+\\.[0-9]+.*" "\\1" FASTJET_VERSION_MINOR "${FASTJET_VERSION}")
  58     string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" FASTJET_VERSION_PATCH "${FASTJET_VERSION}")
  59
  60     if(FASTJET_VERSION_MAJOR LESS 3)
  61         message(FATAL_ERROR "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} version is not suported. Please install a version >= 3.0.*")
  62     endif()
  63
  64     if(FASTJET_VERSION_MINOR GREATER 0)
  65         message(FATAL_ERROR "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} version is not suported.  Please install a version >= 3.0.*")
  66     endif()
  67
  68     # Extracting compilation flags
  69     execute_process(COMMAND ${FASTJET_CONFIG} --cxxflags OUTPUT_VARIABLE FASTJET_CXXFLAGS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  70     if(error)
  71         message(FATAL_ERROR "Error retrieving FastJet compilation flags : ${error}")
  72     endif(error)
  73
  74     # Extracting the include path from the CXX flags
  75     set(FASTJET_INCLUDE_DIR)
  76     if(FASTJET_CXXFLAGS)
  77         string(STRIP ${FASTJET_CXXFLAGS} FASTJET_CXXFLAGS)
  78         string(REGEX MATCHALL  "[-][I]([^ ])+" incfolders ${FASTJET_CXXFLAGS})
  79
  80         foreach(incfolder ${incfolders})
  81             string(REPLACE "-I" "" incfolder ${incfolder})
  82             set(FASTJET_INCLUDE_DIR ${incfolder} ${FASTJET_INCLUDE_DIR})
  83         endforeach()
  84     endif(FASTJET_CXXFLAGS)
  85
  86     # Extracting libraries and linking options
  87     execute_process(COMMAND ${FASTJET_CONFIG} --libs OUTPUT_VARIABLE FASTJET_CONFIGLIBS ERROR_VARIABLE error OUTPUT_STRIP_TRAILING_WHITESPACE )
  88     if(error)
  89         message(FATAL_ERROR "Error retrieving FastJet libs : ${error}")
  90     endif(error)
  91
  92     # Extracting the list of needed libraries during linking and the linking folders
  93     set(FASTJET_LIBS)
  94     set(FASTJET_LIBS_DIR)
  95     if(FASTJET_CONFIGLIBS)
  96         string(STRIP ${FASTJET_CONFIGLIBS} FASTJET_CONFIGLIBS)
  97
  98         # Extracting the list of libraries needed during linking
  99         # -l strings
 100         string(REGEX MATCHALL "[-][l]([^ ])+" fjlibs "${FASTJET_CONFIGLIBS}")
 101
 102         foreach(flib ${fjlibs})
 103             string(REPLACE "-l" "" flib "${flib}")
 104             set(FASTJET_LIBS ${FASTJET_LIBS} ${flib})
 105         endforeach()
 106
 107         # Extracting the list of libraries folders
 108         # -L strings
 109         string(REGEX MATCHALL "[-][L]([^ ])+" fjlibdirs "${FASTJET_CONFIGLIBS}")
 110
 111         foreach(fjlibdir ${fjlibdirs})
 112             string(REPLACE "-L" "" fjlibdir ${fjlibdir})
 113             set(FASTJET_LIBS_DIR ${fjlibdir} ${FASTJET_LIBS_DIR})
 114         endforeach()
 115     endif()
 116
 117     set(FASTJET_FOUND TRUE)
 118     set(FASTJET_DEFINITIONS "-DHAVE_FASTJET")
 119     message(STATUS "FastJet ${FASTJET_VERSION_MAJOR}.${FASTJET_VERSION_MINOR}.${FASTJET_VERSION_PATCH} installation found: ${FASTJET}")
 120 else()
 121     message(STATUS "FastJet not found: disabling dependencies")
 122 endif(FASTJET)