diff --git a/configure/os/CONFIG_SITE.Common.solaris-sparc b/configure/os/CONFIG_SITE.Common.solaris-sparc
index 3140b3d99..8485b0ecf 100644
--- a/configure/os/CONFIG_SITE.Common.solaris-sparc
+++ b/configure/os/CONFIG_SITE.Common.solaris-sparc
@@ -8,4 +8,4 @@
 # If readline is installed uncomment the following macro definition
 # to include command-line editing and history support
 #
-COMMANDLINE_LIBRARY = READLINE
+#COMMANDLINE_LIBRARY = READLINE