[SYCL] add host-task-dependency test (intel#46)

Signed-off-by: Alexander Flegontov <[email protected]>

Author: alexanderfle

SYCL/CMakeLists.txt

@@ -2,6 +2,9 @@ if( NOT OpenCL_LIBRARY )
   find_package(OpenCL)
 endif()
 
+find_package(Threads REQUIRED)
+set(SYCL_THREADS_LIB ${CMAKE_THREAD_LIBS_INIT})
+
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in" "${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg")
 
 if(CHECK_SYCL_ALL)