diff --git a/CMakeLists.txt b/CMakeLists.txt
index d7d8543111..52b6d125fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -382,40 +382,15 @@ if(WIN32)
   endif()
 endif()
 
-# Add library ws2_32.a or ws2_32.lib for vpNetwork class
 if(WIN32 AND NOT CYGWIN)
-  if(MINGW)
-    set(WS2_32_LIBRARY "ws2_32.a")
-    check_library_exists(${WS2_32_LIBRARY} getch "" HAVE_LIBWS2_32) # for inet_ntoa() and socket functionalities
-    if(HAVE_LIBWS2_32)
-      list(APPEND VISP_LINKER_LIBS ${WS2_32_LIBRARY})
-    else()
-      find_library(HAVE_LIBWS2_32 ${WS2_32_LIBRARY}
-        "$ENV{MINGW_DIR}/lib"
-        "$ENV{MINGW_DIR}/mingw/lib"
-        C:/mingw/mingw/lib)
-      if(HAVE_LIBWS2_32)
-        list(APPEND VISP_LINKER_LIBS "${WS2_32_LIBRARY}")
-      endif()
-    endif()
-  elseif(WINRT)
-    # Since check_library_exists() and find_library() does't work to detect ws2_32.lib we add the lib that is part of Windows SDK
-    set(WS2_32_LIBRARY "ws2_32.lib")
-    list(APPEND VISP_LINKER_LIBS  ${WS2_32_LIBRARY})
-  else() # pure WIN32
-    set(WS2_32_LIBRARY "ws2_32.lib")
-    #check_library_exists("ws2_32.lib" getch "" HAVE_LIBWS2_32) # for inet_ntoa() and socket functionalities
-    check_library_exists(${WS2_32_LIBRARY} getch "" HAVE_LIBWS2_32) # for inet_ntoa() and socket functionalities
-    if(HAVE_LIBWS2_32)
-      list(APPEND VISP_LINKER_LIBS ${WS2_32_LIBRARY})
-    endif()
-  endif()
-  mark_as_advanced(HAVE_LIBWS2_32)
+  VP_CHECK_PACKAGE(WS2_32)
+  # Should be before include(cmake/VISPDetectCXXStandard.cmake)
+  VP_CHECK_FUNCTION_EXISTS(inet_ntop "${WS2_32_LIBRARY}")
+else()
+  # Should be before include(cmake/VISPDetectCXXStandard.cmake)
+  VP_CHECK_FUNCTION_EXISTS(inet_ntop "")
 endif()
 
-# Should be before include(cmake/VISPDetectCXXStandard.cmake)
-VP_CHECK_FUNCTION_EXISTS(inet_ntop "${VISP_LINKER_LIBS}")
-
 #--------------------------------------------------------------------
 # Option management
 #--------------------------------------------------------------------
@@ -571,19 +546,18 @@ if(SOQT_FOUND) # SoQt < 1.6.0 that depends on Qt4 was found. We need an explicit
   VP_OPTION(USE_QT        Qt          ""    "Include Coin/SoQt/Qt support" "" ON  IF USE_SOQT AND NOT WINRT AND NOT IOS)
 endif()
 VP_OPTION(USE_SOXT        SOXT        ""    "Include Coin/SoXt support"    "" OFF IF USE_COIN3D AND NOT WINRT AND NOT IOS)
-if (ANDROID)
-  VP_OPTION(USE_PTHREAD     Threads     ""    "Include pthread support"      "" ON)
-else()
-  VP_OPTION(USE_PTHREAD     PTHREAD     ""    "Include pthread support"      "" ON)
-endif()
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+VP_OPTION(USE_PTHREAD     Threads     ""    "Include pthread support"      "" ON IF NOT (WIN32 OR MINGW))
+
 # We need threads with c++11
 if((VISP_CXX_STANDARD GREATER VISP_CXX_STANDARD_98) AND NOT USE_PTHREAD)
-  if(Threads_FOUND OR PTHREAD_FOUND)
+  if(Threads_FOUND)
     message(WARNING "We need threads. Turn USE_PTHREAD=ON.")
     unset(USE_PTHREAD)
     set(USE_PTHREAD ON CACHE BOOL "Include pthread support" FORCE)
   endif()
 endif()
+
 VP_OPTION(USE_XML2        XML2        ""    "Include xml support"          "" ON IF NOT WINRT)
 if(CMAKE_TOOLCHAIN_FILE)
   # Find opencv2.framework for ios and naoqi
diff --git a/cmake/AddExtraCompilationFlags.cmake b/cmake/AddExtraCompilationFlags.cmake
index 7f761ede09..95f15d0d29 100644
--- a/cmake/AddExtraCompilationFlags.cmake
+++ b/cmake/AddExtraCompilationFlags.cmake
@@ -113,6 +113,12 @@ if(USE_OPENMP)
   add_extra_compiler_option("${OpenMP_CXX_FLAGS}")
 endif()
 
+if(USE_PTHREAD)
+  if(THREADS_HAVE_PTHREAD_ARG)
+    add_extra_compiler_option("-pthread")
+  endif()
+endif()
+
 if((VISP_CXX_STANDARD EQUAL VISP_CXX_STANDARD_11) AND CXX11_CXX_FLAGS)
   add_extra_compiler_option("${CXX11_CXX_FLAGS}")
 elseif((VISP_CXX_STANDARD EQUAL VISP_CXX_STANDARD_14) AND CXX14_CXX_FLAGS)
diff --git a/cmake/FindPTHREAD.cmake b/cmake/FindPTHREAD.cmake
deleted file mode 100644
index 00b366dacc..0000000000
--- a/cmake/FindPTHREAD.cmake
+++ /dev/null
@@ -1,99 +0,0 @@
-#############################################################################
-#
-# ViSP, open source Visual Servoing Platform software.
-# Copyright (C) 2005 - 2023 by Inria. All rights reserved.
-#
-# This software is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-# See the file LICENSE.txt at the root directory of this source
-# distribution for additional information about the GNU GPL.
-#
-# For using ViSP with software that can not be combined with the GNU
-# GPL, please contact Inria about acquiring a ViSP Professional
-# Edition License.
-#
-# See https://visp.inria.fr for more information.
-#
-# This software was developed at:
-# Inria Rennes - Bretagne Atlantique
-# Campus Universitaire de Beaulieu
-# 35042 Rennes Cedex
-# France
-#
-# If you have questions regarding the use of this file, please contact
-# Inria at visp@inria.fr
-#
-# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-#
-# Description:
-# Try to find pthread library.
-# Once run this will define:
-#
-# PTHREAD_FOUND
-# PTHREAD_INCLUDE_DIRS
-# PTHREAD_LIBRARIES
-#
-#############################################################################
-
-if(MINGW)
-  find_path(PTHREAD_INCLUDE_DIR pthread.h
-    "$ENV{MINGW_DIR}/include"
-    "$ENV{MINGW_DIR}/mingw/include"
-    C:/mingw/mingw/include
-  )
-
-  # pthreadVSE pthreadGCE pthreadGC pthreadVC1 pthreadVC2 are comming from web
-  find_library(PTHREAD_LIBRARY
-    NAMES pthread pthreadGC2 pthreadVSE pthreadGCE pthreadGC pthreadVC1 pthreadVC2
-    PATHS
-    "$ENV{MINGW_DIR}/lib"
-    "$ENV{MINGW_DIR}/mingw/lib"
-    C:/mingw/mingw/lib
-    )
-else()
-  find_path(PTHREAD_INCLUDE_DIR pthread.h
-    "$ENV{PTHREAD_HOME}/include"
-    "$ENV{PTHREAD_DIR}/include"
-    /usr/include
-  )
-  # pthreadVSE pthreadGCE pthreadGC pthreadVC1 pthreadVC2 are comming from web
-  find_library(PTHREAD_LIBRARY
-    NAMES pthread pthreadGC2 pthreadVSE pthreadGCE pthreadGC pthreadVC1 pthreadVC2
-    PATHS
-    "$ENV{PTHREAD_HOME}/lib"
-    "$ENV{PTHREAD_DIR}/lib"
-    /usr/lib
-    /usr/local/lib
-    /lib
-    )
-endif()
-  #MESSAGE("DBG PTHREAD_INCLUDE_DIR=${PTHREAD_INCLUDE_DIR}")
-  #MESSAGE(STATUS "DBG PTHREAD_LIBRARY=${PTHREAD_LIBRARY}")
-
-  ## --------------------------------
-
-  IF(PTHREAD_LIBRARY)
-    SET(PTHREAD_LIBRARIES ${PTHREAD_LIBRARY})
-  ELSE(PTHREAD_LIBRARY)
-    #MESSAGE(SEND_ERROR "pthread library not found.")
-  ENDIF(PTHREAD_LIBRARY)
-
-  IF(NOT PTHREAD_INCLUDE_DIR)
-    #MESSAGE(SEND_ERROR "pthread include dir not found.")
-  ENDIF(NOT PTHREAD_INCLUDE_DIR)
-
-  IF(PTHREAD_LIBRARIES AND PTHREAD_INCLUDE_DIR)
-    SET(PTHREAD_INCLUDE_DIRS ${PTHREAD_INCLUDE_DIR})
-    SET(PTHREAD_FOUND TRUE)
-  ELSE(PTHREAD_LIBRARIES AND PTHREAD_INCLUDE_DIR)
-    SET(PTHREAD_FOUND FALSE)
-  ENDIF(PTHREAD_LIBRARIES AND PTHREAD_INCLUDE_DIR)
-
-  MARK_AS_ADVANCED(
-    PTHREAD_INCLUDE_DIR
-    PTHREAD_LIBRARY
-  )
-  #MESSAGE(STATUS "PTHREAD_FOUND : ${PTHREAD_FOUND}")
diff --git a/cmake/FindWS2_32.cmake b/cmake/FindWS2_32.cmake
new file mode 100644
index 0000000000..853caf9fc1
--- /dev/null
+++ b/cmake/FindWS2_32.cmake
@@ -0,0 +1,76 @@
+#############################################################################
+#
+# ViSP, open source Visual Servoing Platform software.
+# Copyright (C) 2005 - 2023 by Inria. All rights reserved.
+#
+# This software is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# See the file LICENSE.txt at the root directory of this source
+# distribution for additional information about the GNU GPL.
+#
+# For using ViSP with software that can not be combined with the GNU
+# GPL, please contact Inria about acquiring a ViSP Professional
+# Edition License.
+#
+# See https://visp.inria.fr for more information.
+#
+# This software was developed at:
+# Inria Rennes - Bretagne Atlantique
+# Campus Universitaire de Beaulieu
+# 35042 Rennes Cedex
+# France
+#
+# If you have questions regarding the use of this file, please contact
+# Inria at visp@inria.fr
+#
+# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Description:
+# Try to find ws2_32 library.
+#
+# WS2_32_FOUND - true if ws2_32 library is detected
+# WS2_32_LIBRARY - Library name
+#
+#############################################################################
+
+if(WIN32 AND NOT CYGWIN)
+  if(MINGW)
+    set(WS2_32_LIBNAME "ws2_32.a")
+    check_library_exists(${WS2_32_LIBNAME} getch "" HAVE_LIBWS2_32) # for inet_ntoa() and socket functionalities
+    if(HAVE_LIBWS2_32)
+      set(WS2_32_LIBRARY ${WS2_32_LIBNAME})
+      set(WS2_32_FOUND TRUE)
+    else()
+      find_library(HAVE_LIBWS2_32 ${WS2_32_LIBNAME}
+        "$ENV{MINGW_DIR}/lib"
+        "$ENV{MINGW_DIR}/mingw/lib"
+        C:/mingw/mingw/lib)
+      if(HAVE_LIBWS2_32)
+        set(WS2_32_LIBRARY ${WS2_32_LIBNAME})
+        set(WS2_32_FOUND TRUE)
+      else()
+        set(WS2_32_FOUND FALSE)
+      endif()
+    endif()
+  elseif(WINRT)
+    # Since check_library_exists() and find_library() does't work to detect ws2_32.lib we add the lib that is part of Windows SDK
+    set(WS2_32_LIBNAME "ws2_32.lib")
+    set(WS2_32_LIBRARY ${WS2_32_LIBNAME})
+    set(WS2_32_FOUND TRUE)
+  else() # pure WIN32
+    set(WS2_32_LIBNAME "ws2_32.lib")
+    check_library_exists(${WS2_32_LIBNAME} getch "" HAVE_LIBWS2_32) # for inet_ntoa() and socket functionalities
+    if(HAVE_LIBWS2_32)
+      message("-----------> ${WS2_32_LIBNAME} is found")
+      set(WS2_32_LIBRARY ${WS2_32_LIBNAME})
+      set(WS2_32_FOUND TRUE)
+    else()
+      set(WS2_32_FOUND FALSE)
+    endif()
+  endif()
+  mark_as_advanced(WS2_32_LIBNAME)
+  mark_as_advanced(HAVE_LIBWS2_32)
+endif()
diff --git a/cmake/VISPModule.cmake b/cmake/VISPModule.cmake
index 3e44846b6f..eee1761ba1 100644
--- a/cmake/VISPModule.cmake
+++ b/cmake/VISPModule.cmake
@@ -785,7 +785,7 @@ endmacro()
 # creates ViSP module in current folder
 # creates new target, configures standard dependencies, compilers flags, install rules
 # Usage:
-#   vp_create_module(<extra link dependencies> LINK_PRIVATE <private link dependencies>)
+#   vp_create_module(<extra link dependencies>)
 #   vp_create_module()
 macro(vp_create_module)
   vp_debug_message("vp_create_module(" ${ARGN} ")")
@@ -801,11 +801,11 @@ macro(_vp_create_module)
   vp_add_library(${the_module} ${VISP_MODULE_TYPE} ${VISP_MODULE_${the_module}_HEADERS} ${VISP_MODULE_${the_module}_SOURCES})
 
   vp_target_link_libraries(${the_module}
-    LINK_PUBLIC
+    PUBLIC
       ${VISP_MODULE_${the_module}_DEPS_TO_LINK}
       ${VISP_MODULE_${the_module}_DEPS_EXT}
       ${VISP_MODULE_${the_module}_LINK_DEPS}
-    LINK_PRIVATE
+    PRIVATE
       ${VISP_MODULE_${the_module}_PRIVATE_REQ_DEPS}
       ${VISP_MODULE_${the_module}_PRIVATE_OPT_DEPS}
       ${VISP_LINKER_LIBS})
@@ -1016,7 +1016,7 @@ macro(vp_add_tests)
           # From source compile the binary and add link rules
           vp_add_executable(${the_target} ${t})
           vp_target_include_modules(${the_target} ${test_deps})
-          vp_target_link_libraries(${the_target} ${test_deps} ${VISP_MODULE_${the_module}_DEPS} ${VISP_LINKER_LIBS})
+          vp_target_link_libraries(${the_target} ${test_deps} ${VISP_MODULE_${the_module}_DEPS}) # should be removed ? ${VISP_LINKER_LIBS})
 
           # ctest only:
           # - if required dataset available
diff --git a/cmake/VISPUtils.cmake b/cmake/VISPUtils.cmake
index d394a08fc5..3df61f4ac1 100644
--- a/cmake/VISPUtils.cmake
+++ b/cmake/VISPUtils.cmake
@@ -855,6 +855,7 @@ macro(VP_CHECK_FUNCTION_EXISTS function libraries)
   string(TOUPPER "${ALIAS}" ALIAS_UPPER)
   set(ALIAS_HAVE            HAVE_FUNC_${ALIAS_UPPER})
   set(CMAKE_REQUIRED_LIBRARIES "${libraries}")
+  message("  -------> CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
   check_function_exists(${ALIAS} ${ALIAS_HAVE})
 endmacro()
 
@@ -1645,7 +1646,7 @@ macro(vp_get_all_libs _modules _extra_opt _extra_dbg _3rdparty)
       endif()
     endforeach()
 
-    foreach (dep ${deps} ${VISP_LINKER_LIBS})
+    foreach (dep ${deps}) # Should be remove ? ${VISP_LINKER_LIBS})
       if (NOT DEFINED VISP_MODULE_${dep}_LOCATION)
         if(dep MATCHES "^\\$<LINK_ONLY:([^>]+)>$")
           set(dep_dbg "${CMAKE_MATCH_1}")
diff --git a/modules/core/CMakeLists.txt b/modules/core/CMakeLists.txt
index f50d78d76a..2734dad673 100644
--- a/modules/core/CMakeLists.txt
+++ b/modules/core/CMakeLists.txt
@@ -39,6 +39,11 @@
 set(opt_incs "")
 set(opt_libs "")
 
+# Add library ws2_32.a or ws2_32.lib for vpNetwork class
+if(WS2_32_FOUND)
+  list(APPEND opt_libs ${WS2_32_LIBRARY})
+endif()
+
 # OpenCV
 if(USE_OPENCV)
   # On win32 since OpenCV 2.4.7 and on OSX with OpenCV 2.4.10 we cannot use OpenCV_LIBS to set ViSP 3rd party libraries.
@@ -222,8 +227,9 @@ if(USE_XML2)
   list(APPEND opt_libs ${XML2_LIBRARIES})
 endif()
 if(USE_PTHREAD)
-  list(APPEND opt_incs ${PTHREAD_INCLUDE_DIRS})
-  list(APPEND opt_libs ${PTHREAD_LIBRARIES})
+  if(CMAKE_THREAD_LIBS_INIT)
+    list(APPEND opt_libs "${CMAKE_THREAD_LIBS_INIT}")
+  endif()
 endif()
 if(USE_ZLIB)
   list(APPEND opt_incs ${ZLIB_INCLUDE_DIRS})
@@ -231,7 +237,19 @@ if(USE_ZLIB)
 endif()
 if(USE_OPENMP)
   list(APPEND opt_incs ${OpenMP_CXX_INCLUDE_DIRS})
-  list(APPEND opt_libs ${OpenMP_CXX_LIBRARIES})
+  # Because there is an explicit link to libpthread location that breaks visp conda package usage on linux
+  # we cannot use OpenMP_CXX_LIBRARIES that contains /usr/lib/gcc/x86_64-linux-gnu/11/libgomp.so;/usr/lib/x86_64-linux-gnu/libpthread.a
+  # by adding:
+  # list(APPEND opt_libs ${OpenMP_CXX_LIBRARIES})
+  foreach(lib_ ${OpenMP_CXX_LIB_NAMES})
+    if("x${lib_}" STREQUAL "xpthread")
+      if(CMAKE_THREAD_LIBS_INIT)
+        list(APPEND opt_libs "${CMAKE_THREAD_LIBS_INIT}")
+      endif()
+    else()
+      list(APPEND opt_libs ${OpenMP_${lib_}_LIBRARY})
+    endif()
+  endforeach()
 endif()
 if(USE_NLOHMANN_JSON)
   get_target_property(_inc_dirs "nlohmann_json::nlohmann_json" INTERFACE_INCLUDE_DIRECTORIES)
diff --git a/modules/core/include/visp3/core/vpImageCircle.h b/modules/core/include/visp3/core/vpImageCircle.h
index 6d591fba25..e3648b7259 100644
--- a/modules/core/include/visp3/core/vpImageCircle.h
+++ b/modules/core/include/visp3/core/vpImageCircle.h
@@ -48,7 +48,7 @@
 #include <visp3/core/vpRect.h>
 
 #if defined(VISP_HAVE_OPENCV)
-#include <opencv2/core.hpp>
+#include <opencv2/core/core.hpp>
 #endif
 
 /**
diff --git a/modules/java/jni/CMakeLists.txt b/modules/java/jni/CMakeLists.txt
index 908fcf66e4..7d95d24266 100644
--- a/modules/java/jni/CMakeLists.txt
+++ b/modules/java/jni/CMakeLists.txt
@@ -31,7 +31,7 @@ vp_add_library(${the_module} ${__type}
     ${copied_files}
 )
 add_dependencies(${the_module} gen_visp_java_source)
- 
+
 vp_target_include_directories(${the_module} "${CMAKE_CURRENT_SOURCE_DIR}/../generator/src/cpp")
 vp_target_include_directories(${the_module} "${VISP_JAVA_BINDINGS_DIR}/gen/cpp")
 vp_target_include_modules(${the_module} ${VISP_MODULE_${the_module}_DEPS})
@@ -51,17 +51,17 @@ if(BUILD_FAT_JAVA_LIB)
   endif()
   if(APPLE)
     foreach(_dep ${__deps})
-      vp_target_link_libraries(${the_module} LINK_PRIVATE -Wl,-force_load "${_dep}")
+      vp_target_link_libraries(${the_module} PRIVATE -Wl,-force_load "${_dep}")
     endforeach()
 	# TODO: Just check visp's file once, they had a condition I ignored
   elseif(((UNIX) OR (VISP_FORCE_FAT_JAVA_LIB_LD_RULES)) AND (NOT VISP_SKIP_FAT_JAVA_LIB_LD_RULES))
-    vp_target_link_libraries(${the_module} LINK_PRIVATE -Wl,-whole-archive ${__deps} -Wl,-no-whole-archive)
+    vp_target_link_libraries(${the_module} PRIVATE -Wl,-whole-archive ${__deps} -Wl,-no-whole-archive)
   else()
-    vp_target_link_libraries(${the_module} LINK_PRIVATE ${__deps})
+    vp_target_link_libraries(${the_module} PRIVATE ${__deps})
   endif()
-  vp_target_link_libraries(${the_module} LINK_PRIVATE ${__extradeps} ${VISP_LINKER_LIBS})
+  vp_target_link_libraries(${the_module} PRIVATE ${__extradeps} ${VISP_LINKER_LIBS})
 else()
-  vp_target_link_libraries(${the_module} LINK_PRIVATE ${__deps} ${VISP_LINKER_LIBS})
+  vp_target_link_libraries(${the_module} PRIVATE ${__deps} ${VISP_LINKER_LIBS})
 endif()
 
 # Additional target properties
@@ -74,8 +74,8 @@ set_target_properties(${the_module} PROPERTIES
     )
 
 if(ANDROID)
-  vp_target_link_libraries(${the_module} LINK_PUBLIC jnigraphics)
-  vp_target_link_libraries(${the_module} LINK_PUBLIC log dl z)
+  vp_target_link_libraries(${the_module} PUBLIC jnigraphics)
+  vp_target_link_libraries(${the_module} PUBLIC log dl z)
 
   # force strip library after the build command
   # because samples and tests will make a copy of the library before install
diff --git a/modules/robot/CMakeLists.txt b/modules/robot/CMakeLists.txt
index d01ec138c7..b20f96706e 100644
--- a/modules/robot/CMakeLists.txt
+++ b/modules/robot/CMakeLists.txt
@@ -50,8 +50,9 @@ if(USE_VIRTUOSE)
   list(APPEND opt_libs ${VIRTUOSE_LIBRARIES})
 
   if(USE_PTHREAD AND RT_FOUND AND DL_FOUND)
-    list(APPEND opt_incs ${PTHREAD_INCLUDE_DIRS})
-    list(APPEND opt_libs ${PTHREAD_LIBRARIES})
+    if(CMAKE_THREAD_LIBS_INIT)
+      list(APPEND opt_libs "${CMAKE_THREAD_LIBS_INIT}")
+    endif()
     list(APPEND opt_libs ${RT_LIBRARIES})
     list(APPEND opt_libs ${DL_LIBRARIES})
   endif()
@@ -123,8 +124,9 @@ if(USE_ARIA AND UNIX AND USE_PTHREAD AND RT_FOUND AND DL_FOUND)
   # Under Unix we need Aria, pthread, dl and rt libraries
   list(APPEND opt_incs ${ARIA_INCLUDE_DIRS})
   list(APPEND opt_libs ${ARIA_LIBRARIES})
-  list(APPEND opt_incs ${PTHREAD_INCLUDE_DIRS})
-  list(APPEND opt_libs ${PTHREAD_LIBRARIES})
+  if(CMAKE_THREAD_LIBS_INIT)
+    list(APPEND opt_libs "${CMAKE_THREAD_LIBS_INIT}")
+  endif()
   list(APPEND opt_libs ${RT_LIBRARIES})
   list(APPEND opt_libs ${DL_LIBRARIES})
 elseif(USE_ARIA AND NOT UNIX)