Modules/FindOpenThreads.cmake

   1 # OpenThreads is a C++ based threading library. Its largest userbase
   2 # seems to OpenSceneGraph so you might notice I accept OSGDIR as an
   3 # environment path.
   4 # I consider this part of the Findosg* suite used to find OpenSceneGraph
   5 # components.
   6 # Each component is separate and you must opt in to each module.
   7 #
   8 # Locate OpenThreads
   9 # This module defines
  10 # OPENTHREADS_LIBRARY
  11 # OPENTHREADS_FOUND, if false, do not try to link to OpenThreads
  12 # OPENTHREADS_INCLUDE_DIR, where to find the headers
  13 #
  14 # $OPENTHREADS_DIR is an environment variable that would
  15 # correspond to the ./configure --prefix=$OPENTHREADS_DIR
  16 # used in building osg.
  17 #
  18 # Created by Eric Wing.
  19
  20 # Header files are presumed to be included like
  21 # #include <OpenThreads/Thread>
  22
  23 # To make it easier for one-step automated configuration/builds,
  24 # we leverage environmental paths. This is preferable
  25 # to the -DVAR=value switches because it insulates the
  26 # users from changes we may make in this script.
  27 # It also offers a little more flexibility than setting
  28 # the CMAKE_*_PATH since we can target specific components.
  29 # However, the default CMake behavior will search system paths
  30 # before anything else. This is problematic in the cases
  31 # where you have an older (stable) version installed, but
  32 # are trying to build a newer version.
  33 # CMake doesn't offer a nice way to globally control this behavior
  34 # so we have to do a nasty "double FIND_" in this module.
  35 # The first FIND disables the CMAKE_ search paths and only checks
  36 # the environmental paths.
  37 # If nothing is found, then the second find will search the
  38 # standard install paths.
  39 # Explicit -DVAR=value arguments should still be able to override everything.
  40
  41 find_path(OPENTHREADS_INCLUDE_DIR OpenThreads/Thread
  42     HINTS
  43         # enough environment variables?
  44         $ENV{OPENTHREADS_INCLUDE_DIR}
  45         $ENV{OPENTHREADS_DIR}
  46         $ENV{OSG_INCLUDE_DIR}
  47         $ENV{OSG_DIR}
  48         $ENV{OSGDIR}
  49         $ENV{OpenThreads_ROOT}
  50         $ENV{OSG_ROOT}
  51     PATHS
  52         /sw # Fink
  53         /opt/local # DarwinPorts
  54         /opt/csw # Blastwave
  55         /opt
  56         /usr/freeware
  57     PATH_SUFFIXES include
  58 )
  59
  60
  61 find_library(OPENTHREADS_LIBRARY
  62     NAMES OpenThreads OpenThreadsWin32
  63     HINTS
  64         $ENV{OPENTHREADS_LIBRARY_DIR}
  65         $ENV{OPENTHREADS_DIR}
  66         $ENV{OSG_LIBRARY_DIR}
  67         $ENV{OSG_DIR}
  68         $ENV{OSGDIR}
  69         $ENV{OpenThreads_ROOT}
  70         $ENV{OSG_ROOT}
  71     PATHS
  72         /sw
  73         /opt/local
  74         /opt/csw
  75         /opt
  76         /usr/freeware
  77     PATH_SUFFIXES lib64 lib
  78 )
  79
  80 find_library(OPENTHREADS_LIBRARY_DEBUG
  81     NAMES OpenThreadsd OpenThreadsWin32d
  82     HINTS
  83         $ENV{OPENTHREADS_DEBUG_LIBRARY_DIR}
  84         $ENV{OPENTHREADS_LIBRARY_DIR}
  85         $ENV{OPENTHREADS_DIR}
  86         $ENV{OSG_LIBRARY_DIR}
  87         $ENV{OSG_DIR}
  88         $ENV{OSGDIR}
  89         $ENV{OpenThreads_ROOT}
  90         $ENV{OSG_ROOT}
  91     PATHS
  92         /sw
  93         /opt/local
  94         /opt/csw
  95         /opt
  96         /usr/freeware
  97     PATH_SUFFIXES lib64 lib
  98 )
  99
 100 if(OPENTHREADS_LIBRARY_DEBUG)
 101     set(OPENTHREADS_LIBRARIES
 102         optimized ${OPENTHREADS_LIBRARY}
 103         debug ${OPENTHREADS_LIBRARY_DEBUG})
 104 else()
 105     set(OPENTHREADS_LIBRARIES ${OPENTHREADS_LIBRARY})
 106 endif()
 107
 108 include(FindPackageHandleStandardArgs)
 109 FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenThreads DEFAULT_MSG
 110     OPENTHREADS_LIBRARY OPENTHREADS_INCLUDE_DIR)