diff --git a/configure/os/CONFIG_SITE.Common.darwin-ppc b/configure/os/CONFIG_SITE.Common.darwin-ppc
index 7a12449ae..5a2868b7c 100644
--- a/configure/os/CONFIG_SITE.Common.darwin-ppc
+++ b/configure/os/CONFIG_SITE.Common.darwin-ppc
@@ -10,3 +10,4 @@
 # Other local options
 #
 #OP_SYS_CFLAGS += -g
+#COMMANDLINE_LIBRARY = READLINE