cmake/FindOpenMM.cmake

   1 # Find OpenMM library
   2 #
   3 # Defines:
   4 #  OpenMM_FOUND
   5 #  OpenMM_ROOT_DIR
   6 #  OpenMM_INCLUDE_DIR
   7 #  OpenMM_LIBRARY_DIR
   8 #  OpenMM_LIBRARIES
   9 #  OpenMM_PLUGIN_DIR
  10 #
  11
  12 # include(LibFindMacros) TODO get this: http://zi.fi/cmake/Modules/LibFindMacros.cmake
  13
  14 if(OpenMM_INCLUDE_DIR AND OpenMM_LIBRARY_DIR AND OpenMM_PLUGIN_DIR)
  15     set(OpenMM_FIND_QUIETLY)
  16 endif()
  17
  18 if(IS_DIRECTORY "$ENV{OPENMM_ROOT_DIR}")
  19     set(OpenMM_ROOT_DIR $ENV{OPENMM_ROOT_DIR} CACHE PATH "OpenMM installation directory" FORCE)
  20 else()
  21     if(IS_DIRECTORY "/usr/local/openmm")
  22         set(OpenMM_ROOT_DIR "/usr/local/openmm" CACHE PATH "OpenMM installation directory" FORCE)
  23     endif()
  24 endif()
  25
  26 find_library(OpenMM_LIBRARIES
  27     NAMES OpenMM
  28     PATHS "${OpenMM_ROOT_DIR}/lib")
  29
  30 get_filename_component(OpenMM_LIBRARY_DIR
  31     ${OpenMM_LIBRARIES}
  32     PATH
  33     CACHE STRING "OpenMM library path")
  34
  35 find_path(OpenMM_INCLUDE_DIR
  36     NAMES OpenMM.h
  37     PATHS "${OpenMM_ROOT_DIR}/include" "${OpenMM_LIBRARY_DIR}/../include"
  38     CACHE STRING "OpenMM include directory")
  39
  40 # if we did not manage to set the root dir at the beginning but found the
  41 # libs then set the ${OpenMM_LIBRARY_DIR}/.. as root
  42 if(NOT IS_DIRECTORY ${OpenMM_ROOT_DIR})
  43     if (IS_DIRECTORY "${OpenMM_LIBRARY_DIR}/..") # just double-checking
  44         get_filename_component(OpenMM_ROOT_DIR
  45             "${OpenMM_LIBRARY_DIR}/.."
  46             ABSOLUTE
  47             CACHE PATH "OpenMM installation directory")
  48     endif()
  49 endif()
  50
  51 if(NOT IS_DIRECTORY ${OpenMM_ROOT_DIR})
  52     message(FATAL_ERROR "Can't find OpenMM! Either set the OPENMM_ROOT_DIR environment "
  53     "variable to the path where your OpenMM installation is located or install it to the default location (/usr/local/openmm)!")
  54 endif()
  55
  56 if(NOT OpenMM_LIBRARY_DIR)
  57     message(FATAL_ERROR "Can't find OpenMM libraries. Check your OpenMM installation!")
  58 endif()
  59
  60 # now we can be sure that we have the library dir
  61 if(IS_DIRECTORY "${OpenMM_LIBRARY_DIR}/plugins")
  62     get_filename_component(OpenMM_PLUGIN_DIR
  63         "${OpenMM_LIBRARY_DIR}/plugins"
  64         ABSOLUTE
  65         CACHE PATH "OpenMM plugins directory")
  66 else()
  67     message(WARNING "Could not detect the OpenMM plugin directory at the default location (${OpenMM_LIBRARY_DIR}/plugins)."
  68             "Check you OpenMM installation or manually set the OPENMM_PLUGIN_DIR environment variable!")
  69 endif()
  70
  71 if(NOT OpenMM_INCLUDE_DIR)
  72     message(FATAL_ERROR "Can't find OpenMM includes. Check your OpenMM installation!")
  73 endif()
  74
  75 include (FindPackageHandleStandardArgs)
  76 find_package_handle_standard_args(OpenMM DEFAULT_MSG
  77                                     OpenMM_ROOT_DIR
  78                                     OpenMM_LIBRARIES
  79                                     OpenMM_LIBRARY_DIR
  80                                     OpenMM_INCLUDE_DIR
  81                                     OpenMM_PLUGIN_DIR)