Cmake error : Could NOT find OpenThreads

[LaurentBerger]

Hi
I tried to use OSG in my application
i used wxwidgets plplot opencv and openscenegraph.
I installed all libs using cmake --build . --target install --config release
In my cmake script I used this sample
I have set env variable
OSG_DIR="c:\install\openscenegraph"
OSG_INCLUDE_DIR="c:\install\openscenegraph\include"
OSG_LIB_DIR="C:\install\openscenegraph\lib"
When I used cmake to build my application Ihave got this error message

-- Found OpenCV: C:/install/opencv (found version "4.7.0")
-- Found OpenCV 4.7.0 in C:/install/opencv/x64/vc17/lib
-- You might need to add C:\install\opencv\x64\vc17\bin to your PATH to be able to run your applications.
-- Could NOT find OpenThreads (missing: OPENTHREADS_LIBRARY)
-- Could NOT find osg (missing: OSG_LIBRARY)
-- Could NOT find osgDB (missing: OSGDB_LIBRARY)
-- Could NOT find osgUtil (missing: OSGUTIL_LIBRARY)
-- Could NOT find osgGA (missing: OSGGA_LIBRARY)
-- Could NOT find osgViewer (missing: OSGVIEWER_LIBRARY)
-- Could NOT find osgText (missing: OSGTEXT_LIBRARY)
-- Could NOT find osgSim (missing: OSGSIM_LIBRARY)
-- Found wxWidgets: debug;C:/install/wxwidgets/lib/vc_x64_dll/wxmsw33ud_aui.lib;optimized;C:/install/wxwidgets/lib/vc_x64_dll

When I open cmakecahe.txt

//Path to a file.
OPENTHREADS_INCLUDE_DIR:PATH=C:/install/openscenegraph/include

//Path to a library.
OPENTHREADS_LIBRARY_DEBUG:FILEPATH=OPENTHREADS_LIBRARY_DEBUG-NOTFOUND

//Path to a library.
OPENTHREADS_LIBRARY_RELEASE:FILEPATH=OPENTHREADS_LIBRARY_RELEASE-NOTFOUND

//Path to a file.
OSGDB_INCLUDE_DIR:PATH=C:/install/openscenegraph/include

In my OSG install

10/03/2023  22:06    <DIR>          .
10/03/2023  18:36    <DIR>          ..
10/03/2023  22:33    <DIR>          cmake
10/03/2023  22:06    <DIR>          include
10/03/2023  22:33    <DIR>          lib

in my install lib

C:\install\openscenegraph\lib>dir
 Répertoire de C:\install\openscenegraph\lib

10/03/2023  22:33    <DIR>          .
10/03/2023  22:06    <DIR>          ..
10/03/2023  21:42        19 958 684 osg202-osg.lib
10/03/2023  21:45         4 956 554 osg202-osgAnimation.lib
10/03/2023  22:10        32 436 064 osg202-osgAnimationd.lib
10/03/2023  22:07       131 119 762 osg202-osgd.lib
10/03/2023  21:43         7 455 234 osg202-osgDB.lib
10/03/2023  22:09        52 663 236 osg202-osgDBd.lib
10/03/2023  21:45         1 667 802 osg202-osgFX.lib
10/03/2023  22:11        12 886 880 osg202-osgFXd.lib
10/03/2023  21:44         3 080 252 osg202-osgGA.lib
10/03/2023  22:09        20 201 544 osg202-osgGAd.lib
10/03/2023  21:46         2 672 896 osg202-osgManipulator.lib
10/03/2023  22:11        19 504 644 osg202-osgManipulatord.lib
10/03/2023  21:46         2 589 142 osg202-osgParticle.lib
10/03/2023  22:11        21 242 588 osg202-osgParticled.lib
10/03/2023  21:47         2 992 076 osg202-osgPresentation.lib
10/03/2023  22:13        16 097 332 osg202-osgPresentationd.lib
10/03/2023  21:47         3 544 532 osg202-osgShadow.lib
10/03/2023  22:13        28 646 404 osg202-osgShadowd.lib
10/03/2023  21:48         3 723 456 osg202-osgSim.lib
10/03/2023  22:13        28 308 736 osg202-osgSimd.lib
10/03/2023  21:48         1 899 856 osg202-osgTerrain.lib
10/03/2023  22:13        13 488 000 osg202-osgTerraind.lib
10/03/2023  21:44         2 560 198 osg202-osgText.lib
10/03/2023  22:10        19 645 622 osg202-osgTextd.lib
10/03/2023  21:46         2 284 320 osg202-osgUI.lib
10/03/2023  22:12        16 526 430 osg202-osgUId.lib
10/03/2023  21:43        10 258 368 osg202-osgUtil.lib
10/03/2023  22:08        76 333 630 osg202-osgUtild.lib
10/03/2023  21:45         5 900 184 osg202-osgViewer.lib
10/03/2023  22:10        37 887 336 osg202-osgViewerd.lib
10/03/2023  21:46         2 625 772 osg202-osgVolume.lib
10/03/2023  22:12        16 211 704 osg202-osgVolumed.lib
10/03/2023  21:47         2 487 378 osg202-osgWidget.lib
10/03/2023  22:12        21 632 340 osg202-osgWidgetd.lib
10/03/2023  22:33    <DIR>          osgPlugins-3.7.0
10/03/2023  21:41           124 874 ot21-OpenThreads.lib
10/03/2023  22:06           566 558 ot21-OpenThreadsd.lib

I understand that cmake can find include but not libs.
What's wrong in my configuration