diff --git a/configure/os/CONFIG_SITE.Common.solaris-sparc b/configure/os/CONFIG_SITE.Common.solaris-sparc
index d8f2ab60e..a12a47d7e 100644
--- a/configure/os/CONFIG_SITE.Common.solaris-sparc
+++ b/configure/os/CONFIG_SITE.Common.solaris-sparc
@@ -8,5 +8,5 @@
 # If readline is installed uncomment the following macro definition
 # to include command-line editing and history support
 #
-COMMANDLINE_LIBRARY = READLINE
+#COMMANDLINE_LIBRARY = READLINE