delete generated file libopen.so.0.0 on 'make clean'

diff --git a/tools/Makefile.am b/tools/Makefile.am
index 464f89f..2614b57 100644 (file)
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -3,5 +3,7 @@ libopen.so.0.0:
 
 all: libopen.so.0.0
 
+CLEANFILES = libopen.so.0.0
+
 install: all
        $(INSTALL) libopen.so.0.0 $(DESTDIR)/usr/lib