--- mediastreamer2-5.1.72/CMakeLists.txt.orig	2022-11-18 15:22:23.000000000 +0100
+++ mediastreamer2-5.1.72/CMakeLists.txt	2023-04-10 18:45:02.855566537 +0200
@@ -418,7 +418,7 @@ include_directories(
 )
 
 set(MEDIASTREAMER2_INCLUDE_DIRS )
-set(LINK_LIBS bctoolbox ortp)
+set(LINK_LIBS bctoolbox ortp pthread)
 if(WIN32)
 	if(NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone" AND NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
 		list(APPEND LINK_LIBS ole32 oleaut32 uuid Winmm Ws2_32)
@@ -487,7 +487,7 @@ if(X11_FOUND)
 	list(APPEND MEDIASTREAMER2_INCLUDE_DIRS ${X11_INCLUDE_DIRS})
 endif()
 if(XV_FOUND)
-	list(APPEND LINK_LIBS Xv)
+	list(APPEND LINK_LIBS Xv Xext)
 	list(APPEND MEDIASTREAMER2_INCLUDE_DIRS ${XV_INCLUDE_DIRS})
 endif()
 if(GLX_FOUND)