FindOpenThreadsΒΆ
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.
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.
New in version 2.8.10: The CMake variables OPENTHREADS_DIR or OSG_DIR can now
be used as well to influence detection, instead of needing to specify
an environment variable.
