CMake/Modules/FindOpenThreads.cmake

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# OpenThreads is a C++ based threading library. Its largest userbase
# seems to OpenSceneGraph so you might notice I accept OSGDIR as an
# environment path.
# I consider this part of the Findosg* suite used to find OpenSceneGraph
# components.
# Each component is separate and you must opt in to each module.
#
# Locate OpenThreads
# This module defines
# OPENTHREADS_LIBRARY
# OPENTHREADS_FOUND, if false, do not try to link to OpenThreads
# OPENTHREADS_INCLUDE_DIR, where to find the headers
#
# $OPENTHREADS_DIR is an environment variable that would
# correspond to the ./configure --prefix=$OPENTHREADS_DIR
# used in building osg.
#
# Created by Eric Wing.
# Header files are presumed to be included like
# #include <OpenThreads/Thread>
# To make it easier for one-step automated configuration/builds,
# we leverage environmental paths. This is preferable
# to the -DVAR=value switches because it insulates the
# users from changes we may make in this script.
# It also offers a little more flexibility than setting
# the CMAKE_*_PATH since we can target specific components.
# However, the default CMake behavior will search system paths
# before anything else. This is problematic in the cases
# where you have an older (stable) version installed, but
# are trying to build a newer version.
# CMake doesn't offer a nice way to globally control this behavior
# so we have to do a nasty "double FIND_" in this module.
# The first FIND disables the CMAKE_ search paths and only checks
# the environmental paths.
# If nothing is found, then the second find will search the
# standard install paths.
# Explicit -DVAR=value arguments should still be able to override everything.
FIND_PATH(OPENTHREADS_INCLUDE_DIR OpenThreads/Thread
PATHS
$ENV{OPENTHREADS_INCLUDE_DIR}
$ENV{OPENTHREADS_DIR}/include
$ENV{OPENTHREADS_DIR}
$ENV{OSG_INCLUDE_DIR}
$ENV{OSG_DIR}/include
$ENV{OSG_DIR}
$ENV{OSGDIR}/include
$ENV{OSGDIR}
NO_DEFAULT_PATH
)
FIND_PATH(OPENTHREADS_INCLUDE_DIR OpenThreads/Thread
~/Library/Frameworks
/Library/Frameworks
/usr/local/include
/usr/include
/sw/include # Fink
/opt/local/include # DarwinPorts
/opt/csw/include # Blastwave
/opt/include
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OpenThreads_ROOT]/include
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/include
)
FIND_LIBRARY(OPENTHREADS_LIBRARY
NAMES OpenThreads OpenThreadsWin32
PATHS
$ENV{OPENTHREADS_LIBRARY_DIR}
$ENV{OPENTHREADS_DIR}/lib64
$ENV{OPENTHREADS_DIR}/lib
$ENV{OPENTHREADS_DIR}
$ENV{OSG_LIBRARY_DIR}
$ENV{OSG_DIR}/lib64
$ENV{OSG_DIR}/lib
$ENV{OSG_DIR}
$ENV{OSGDIR}/lib64
$ENV{OSGDIR}/lib
$ENV{OSGDIR}
NO_DEFAULT_PATH
)
FIND_LIBRARY(OPENTHREADS_LIBRARY
NAMES OpenThreads OpenThreadsWin32
PATHS
~/Library/Frameworks
/Library/Frameworks
/usr/local/lib64
/usr/local/lib
/usr/lib64
/usr/lib
/sw/lib64
/sw/lib
/opt/local/lib64
/opt/local/lib
/opt/csw/lib64
/opt/csw/lib
/opt/lib64
/opt/lib
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OpenThreads_ROOT]/lib
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/lib
)
FIND_LIBRARY(OPENTHREADS_LIBRARY_DEBUG
NAMES OpenThreadsd OpenThreadsWin32d
PATHS
$ENV{OPENTHREADS_DEBUG_LIBRARY_DIR}
$ENV{OPENTHREADS_LIBRARY_DIR}
$ENV{OPENTHREADS_DIR}/lib64
$ENV{OPENTHREADS_DIR}/lib
$ENV{OPENTHREADS_DIR}
$ENV{OSG_LIBRARY_DIR}
$ENV{OSG_DIR}/lib64
$ENV{OSG_DIR}/lib
$ENV{OSG_DIR}
$ENV{OSGDIR}/lib64
$ENV{OSGDIR}/lib
$ENV{OSGDIR}
NO_DEFAULT_PATH
)
FIND_LIBRARY(OPENTHREADS_LIBRARY_DEBUG
NAMES OpenThreadsd OpenThreadsWin32d
PATHS
/usr/local/lib64
/usr/local/lib
/usr/lib64
/usr/lib
/sw/lib64
/sw/lib
/opt/local/lib64
/opt/local/lib
/opt/csw/lib64
/opt/csw/lib
/opt/lib64
/opt/lib
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OpenThreads_ROOT]/lib
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session\ Manager\\Environment;OSG_ROOT]/lib
)
IF(OPENTHREADS_LIBRARY)
IF(NOT OPENTHREADS_LIBRARY_DEBUG)
#MESSAGE("-- Warning Debug OpenThreads not found, using: ${OPENTHREADS_LIBRARY}")
#SET(OPENTHREADS_LIBRARY_DEBUG "${OPENTHREADS_LIBRARY}")
SET(OPENTHREADS_LIBRARY_DEBUG "${OPENTHREADS_LIBRARY}" CACHE FILEPATH "Debug version of OpenThreads Library (use regular version if not available)" FORCE)
ENDIF(NOT OPENTHREADS_LIBRARY_DEBUG)
ENDIF(OPENTHREADS_LIBRARY)
SET(OPENTHREADS_FOUND "NO")
IF(OPENTHREADS_INCLUDE_DIR AND OPENTHREADS_LIBRARY)
SET(OPENTHREADS_FOUND "YES")
# MESSAGE("-- Found OpenThreads: "${OPENTHREADS_LIBRARY})
ENDIF(OPENTHREADS_INCLUDE_DIR AND OPENTHREADS_LIBRARY)