Restore calling source checks, lost when removing starpu-top

Makefile.am

@@ -118,6 +118,7 @@ noinst_HEADERS = \
 	include/pthread_win32/semaphore.h
 
 if STARPU_DEVEL
+all-local:
 	@if $(GREP) -r sys/time.h $$( find $(srcdir)/examples $(srcdir)/tests $(srcdir)/src $(srcdir)/mpi/src $(srcdir)/include -name \*.[ch] -a \! -name starpu_util.h -a \! -name timer.h -a \! -name loader.c ) ; \
 	then \
 		echo "Please do not include sys/time, it is not available on Windows, include starpu_util.h and use starpu_timing_now() instead" ; \