--- rpl/src/Makefile.am	2015/01/08 14:29:51	1.97
+++ rpl/src/Makefile.am	2015/06/08 07:15:31	1.99
@@ -210,6 +210,7 @@ SRCC=\
 	instructions_x2.c\
 	instructions_y1.c\
 	interface_gnuplot.c\
+	interface_readline.c\
 	interface_tex.c\
 	interruptions.c\
 	messages.c\
@@ -565,7 +566,7 @@ librpl: install-libLIBRARIES
 				done; \
 				if test -n "$$L"; then \
 					echo -n "    Adding files to librpl.a archive... "; \
-					ar cru librpl.a $$L; \
+					ar cr librpl.a $$L; \
 					rm -f $$L; \
 					echo "done"; \
 				fi; \