Index: src/tests/preempt_longrun/Makefile.am
===================================================================
--- src/tests/preempt_longrun/Makefile.am	(revision 85b1deb20af020daa008d82abbbc54f9b152d5c0)
+++ src/tests/preempt_longrun/Makefile.am	(revision beefc34cfb147868f1ec6e2b7ac16aed470af054)
@@ -34,5 +34,5 @@
 
 clean-local:
-	rm -f ${TESTS}
+	rm -f ${TESTS} core* out.log
 
 % : %.c ${CC}
Index: src/tests/preempt_longrun/Makefile.in
===================================================================
--- src/tests/preempt_longrun/Makefile.in	(revision 85b1deb20af020daa008d82abbbc54f9b152d5c0)
+++ src/tests/preempt_longrun/Makefile.in	(revision beefc34cfb147868f1ec6e2b7ac16aed470af054)
@@ -878,5 +878,5 @@
 
 clean-local:
-	rm -f ${TESTS}
+	rm -f ${TESTS} core* out.log
 
 % : %.c ${CC}