revert #3389

CMakeLists.txt

@@ -82,8 +82,8 @@ if(ENABLE_OPENCV)
   find_package(OpenCV)
 endif()
 find_package(Stb REQUIRED)
-if(${CMAKE_VERSION} VERSION_LESS "3.9.0")
-  message(WARNING "To build with OpenMP support you need CMake 3.9.0+")
+if(${CMAKE_VERSION} VERSION_LESS "3.11.0")
+  message(WARNING "To build with OpenMP support you need CMake 3.11.0+")
 else()
   find_package(OpenMP)
 endif()
@@ -280,7 +280,7 @@ if(OpenCV_FOUND)
   target_compile_definitions(dark PUBLIC -DOPENCV)
 endif()
 
-if(WIN32 AND OPENMP_FOUND)
+if(OPENMP_FOUND)
   target_link_libraries(darknet PUBLIC OpenMP::OpenMP_CXX)
   target_link_libraries(darknet PUBLIC OpenMP::OpenMP_C)
   target_link_libraries(dark PUBLIC OpenMP::OpenMP_CXX)
@@ -304,7 +304,6 @@ endif()
 
 target_link_libraries(darknet PRIVATE Threads::Threads)
 target_link_libraries(dark PRIVATE Threads::Threads)
-target_link_libraries(uselib PRIVATE Threads::Threads)
 
 if(ENABLE_ZED_CAMERA)
   target_link_libraries(darknet PRIVATE ${ZED_LIBRARIES})