cmake/FindGraphviz.cmake

   1 # - Graphviz detection
   2 #
   3 # Output variables: GRAPHVIZ_EXECUTABLE   - where is executable 'dot' takes place.
   4 #                   GRAPHVIZ_INCLUDE_DIRS - where to find headers.
   5 #                   GRAPHVIZ_LIBRARIES    - where to get libraries.
   6 #                   GRAPHVIZ_VERSION      - Graphviz version
   7 #                   GRAPHVIZ_DEFINITIONS  - Graphviz definitions
   8 #                   GRAPHVIZ_FOUND        - True if Graphviz was found.
   9 #
  10 ###########################################################################
  11 # Copyright (C) 2007-2022  CEA/DEN, EDF R&D, OPEN CASCADE
  12 #
  13 # This library is free software; you can redistribute it and/or
  14 # modify it under the terms of the GNU Lesser General Public
  15 # License as published by the Free Software Foundation; either
  16 # version 2.1 of the License, or (at your option) any later version.
  17 #
  18 # This library is distributed in the hope that it will be useful,
  19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 # Lesser General Public License for more details.
  22 #
  23 # You should have received a copy of the GNU Lesser General Public
  24 # License along with this library; if not, write to the Free Software
  25 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26 #
  27 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  28 #
  29
  30 FIND_PROGRAM(GRAPHVIZ_EXECUTABLE dot)
  31
  32 FIND_PATH(GRAPHVIZ_INCLUDE_DIR NAMES graphviz/cgraph.h)
  33 SET(GRAPHVIZ_INCLUDE_DIRS ${GRAPHVIZ_INCLUDE_DIR} ${GRAPHVIZ_INCLUDE_DIR}/graphviz)
  34
  35 IF(GRAPHVIZ_EXECUTABLE)
  36   IF(NOT CMAKE_PREFIX_PATH) # Case where dot is in the path and -DGRAPHVIZ_ROOT_DIR not defined.
  37     GET_FILENAME_COMPONENT(GRAPHVIZ_EXECUTABLE_DIR ${GRAPHVIZ_EXECUTABLE} PATH)
  38     GET_FILENAME_COMPONENT(GRAPHVIZ_EXECUTABLE_DIR ${GRAPHVIZ_EXECUTABLE_DIR} PATH)
  39     SET(CMAKE_PREFIX_PATH "${GRAPHVIZ_EXECUTABLE_DIR}")
  40   ENDIF(NOT CMAKE_PREFIX_PATH)
  41 ENDIF(GRAPHVIZ_EXECUTABLE)
  42
  43 FIND_LIBRARY(GRAPHVIZ_cdt_LIBRARY      NAMES cdt PATH_SUFFIXES bin)
  44 FIND_LIBRARY(GRAPHVIZ_graph_LIBRARY    NAMES cgraph PATH_SUFFIXES bin)
  45 FIND_LIBRARY(GRAPHVIZ_gvc_LIBRARY      NAMES gvc PATH_SUFFIXES bin)
  46 FIND_LIBRARY(GRAPHVIZ_pathplan_LIBRARY NAMES pathplan PATH_SUFFIXES bin)
  47
  48 SET(GRAPHVIZ_LIBRARIES
  49   ${GRAPHVIZ_cdt_LIBRARY}
  50   ${GRAPHVIZ_graph_LIBRARY}
  51   ${GRAPHVIZ_gvc_LIBRARY}
  52   ${GRAPHVIZ_pathplan_LIBRARY}
  53   )
  54
  55 IF(GRAPHVIZ_EXECUTABLE)
  56   EXECUTE_PROCESS(COMMAND ${GRAPHVIZ_EXECUTABLE} "-V" ERROR_VARIABLE GRAPHVIZ_VERSION ERROR_STRIP_TRAILING_WHITESPACE)
  57   STRING(REGEX REPLACE ".* ([0-9.]+) .*" "\\1" GRAPHVIZ_VERSION "${GRAPHVIZ_VERSION}")
  58 ENDIF()
  59
  60 SET(GRAPHVIZ_DEFINITIONS)
  61 IF("${GRAPHVIZ_VERSION}" VERSION_LESS "2.36.0")
  62   SET(GRAPHVIZ_DEFINITIONS -DWITH_CGRAPH)
  63 ENDIF()
  64
  65 ## Don't detect cgraph on Windows
  66 #IF(NOT WIN32)
  67 #  FIND_LIBRARY(GRAPHVIZ_cgraph_LIBRARY   NAMES cgraph PATH_SUFFIXES bin)
  68 #  SET(GRAPHVIZ_LIBRARIES ${GRAPHVIZ_cgraph_LIBRARY})
  69 #ENDIF()
  70
  71 # Handle the standard arguments of the find_package() command:
  72 INCLUDE(FindPackageHandleStandardArgs)
  73 FIND_PACKAGE_HANDLE_STANDARD_ARGS(Graphviz REQUIRED_VARS
  74                                            GRAPHVIZ_EXECUTABLE
  75                                            GRAPHVIZ_LIBRARIES
  76                                            GRAPHVIZ_INCLUDE_DIRS)