Index: tools/Makefile.am
===================================================================
--- tools/Makefile.am	(revision 7bdcac1f3631ee6408a86b4d0321433114fee6d3)
+++ tools/Makefile.am	(revision 381bea69eb8b86074ee4096b96a9b80542346e12)
@@ -15,6 +15,8 @@
 ###############################################################################
 
+AUTOMAKE_OPTIONS = foreign    # do not require all the GNU file names
+
 CC = @BACKEND_CC@
-CFLAGS = -Wall -Wextra -O2 -g
+AM_CFLAGS = -Wall -Wextra -O2 -g
 
 noinst_PROGRAMS = busy catchsig repeat watchdog