cmake/modules/FindOpenBabel2.cmake

   1 # - Try to find OpenBabel2
   2 # Once done this will define
   3 #
   4 #  OPENBABEL2_FOUND - system has OpenBabel2
   5 #  OPENBABEL2_INCLUDE_DIR - the OpenBabel2 include directory
   6 #  OPENBABEL2_LIBRARIES - Link these to use OpenBabel2
   7 # Copyright (c) 2006, 2007 Carsten Niehaus, <cniehaus@gmx.de>
   8 # Redistribution and use is allowed according to the terms of the BSD license.
   9 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
  10
  11 if (OPENBABEL2_INCLUDE_DIR AND OPENBABEL2_LIBRARIES AND OPENBABEL_MINI_FOUND)
  12
  13   # in cache already
  14   set(OPENBABEL2_FOUND TRUE)
  15
  16 else (OPENBABEL2_INCLUDE_DIR AND OPENBABEL2_LIBRARIES AND OPENBABEL_MINI_FOUND)
  17 if(NOT WIN32)
  18   include(UsePkgConfig)
  19
  20   pkgconfig(openbabel-2.0 _obIncDir _obLinkDir _obLinkFlags _obCflags)
  21
  22   # query pkg-config asking for a openbabel >= 2.2.0
  23   exec_program(${PKGCONFIG_EXECUTABLE} ARGS --atleast-version=2.1.0 openbabel-2.0 RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull )
  24   if(_return_VALUE STREQUAL "0")
  25         set(OPENBABEL_MINI_FOUND TRUE)
  26   endif(_return_VALUE STREQUAL "0")
  27
  28   exec_program(${PKGCONFIG_EXECUTABLE} ARGS --variable=pkgincludedir openbabel-2.0 RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _obPkgIncDir )
  29   if (_obPkgIncDir)
  30     set(_obIncDir "${_obPkgIncDir}")
  31   endif (_obPkgIncDir)
  32 else(NOT WIN32)
  33   set(OPENBABEL_MINI_FOUND TRUE)
  34 endif(NOT WIN32)
  35
  36   if(OPENBABEL_MINI_FOUND)
  37
  38     find_path(OPENBABEL2_INCLUDE_DIR openbabel/obconversion.h
  39       PATHS
  40       ${_obIncDir}
  41       ${GNUWIN32_DIR}/include
  42       $ENV{OPENBABEL2_INCLUDE_DIR}
  43     )
  44
  45     if(WIN32)
  46       if(NOT OPENBABEL2_INCLUDE_DIR)
  47         find_path(OPENBABEL2_INCLUDE_DIR openbabel-2.0/openbabel/obconversion.h
  48           PATHS
  49           ${_obIncDir}
  50           ${GNUWIN32_DIR}/include
  51           $ENV{OPENBABEL2_INCLUDE_DIR}
  52         )
  53         if(OPENBABEL2_INCLUDE_DIR)
  54           set(OPENBABEL2_INCLUDE_DIR ${OPENBABEL2_INCLUDE_DIR}/openbabel-2.0)
  55         endif(OPENBABEL2_INCLUDE_DIR)
  56       endif(NOT OPENBABEL2_INCLUDE_DIR)
  57     endif(WIN32)
  58
  59     find_library(OPENBABEL2_LIBRARIES NAMES openbabel
  60       PATHS
  61       ${_obLinkDir}
  62       ${GNUWIN32_DIR}/lib
  63       $ENV{OPENBABEL2_LIBRARIES}
  64     )
  65   endif(OPENBABEL_MINI_FOUND)
  66
  67   if(OPENBABEL2_INCLUDE_DIR AND OPENBABEL2_LIBRARIES AND OPENBABEL_MINI_FOUND)
  68     set(OPENBABEL2_FOUND TRUE)
  69   endif(OPENBABEL2_INCLUDE_DIR AND OPENBABEL2_LIBRARIES AND OPENBABEL_MINI_FOUND)
  70
  71   if (OPENBABEL2_FOUND)
  72     if (NOT OpenBabel2_FIND_QUIETLY)
  73       message(STATUS "Found OpenBabel 2.2 or later: ${OPENBABEL2_LIBRARIES}")
  74     endif (NOT OpenBabel2_FIND_QUIETLY)
  75   else (OPENBABEL2_FOUND)
  76     if (OpenBabel2_FIND_REQUIRED)
  77       message(FATAL_ERROR "Could NOT find OpenBabel 2.2 or later ")
  78     endif (OpenBabel2_FIND_REQUIRED)
  79   endif (OPENBABEL2_FOUND)
  80
  81   mark_as_advanced(OPENBABEL2_INCLUDE_DIR OPENBABEL2_LIBRARIES)
  82
  83 endif (OPENBABEL2_INCLUDE_DIR AND OPENBABEL2_LIBRARIES AND OPENBABEL_MINI_FOUND)
  84
  85 # Search for Open Babel2 executable
  86 if(OPENBABEL2_EXECUTABLE)
  87
  88   # in cache already
  89   set(OPENBABEL2_EXECUTABLE_FOUND TRUE)
  90
  91 else(OPENBABEL2_EXECUTABLE)
  92   find_program(OPENBABEL2_EXECUTABLE NAMES babel
  93     PATHS
  94     [HKEY_CURRENT_USER\\SOFTWARE\\OpenBabel\ 2.2.0]
  95     $ENV{OPENBABEL2_EXECUTABLE}
  96   )
  97
  98   if(OPENBABEL2_EXECUTABLE)
  99     set(OPENBABEL2_EXECUTABLE_FOUND TRUE)
 100   endif(OPENBABEL2_EXECUTABLE)
 101
 102   if(OPENBABEL2_EXECUTABLE_FOUND)
 103     message(STATUS "Found OpenBabel2 executable: ${OPENBABEL2_EXECUTABLE}")
 104   endif(OPENBABEL2_EXECUTABLE_FOUND)
 105
 106 endif(OPENBABEL2_EXECUTABLE)
 107