version 4.0.0_alpha

in almost all methods removed timeouts in milliseconds, replaced to PISystemTime
PITimer rewrite, remove internal impl, now only thread implementation, API similar to PIThread
PITimer API no longer pass void*
PIPeer, PIConnection improved stability on reinit and exit
PISystemTime new methods
pisd now exit without hanging

cmake/FindPIP.cmake

@@ -66,10 +66,6 @@ if (NOT BUILDING_PIP)
 			find_library(PTHREAD_LIBRARY pthread)
 			find_library(UTIL_LIBRARY util)
 			set(_PIP_ADD_LIBS_ ${PTHREAD_LIBRARY} ${UTIL_LIBRARY})
-			if((NOT DEFINED ENV{QNX_HOST}) AND (NOT APPLE) AND (NOT PIP_FREERTOS))
-				find_library(RT_LIBRARY rt)
-				list(APPEND _PIP_ADD_LIBS_ ${RT_LIBRARY})
-			endif()
 			list(APPEND PIP_LIBRARY ${_PIP_ADD_LIBS_})
 		endif()
 	endif()