diff --git a/configure/os/CONFIG.linux-x86.linux-x86 b/configure/os/CONFIG.linux-x86.linux-x86
index 5fe4a79d2..1c70343ba 100644
--- a/configure/os/CONFIG.linux-x86.linux-x86
+++ b/configure/os/CONFIG.linux-x86.linux-x86
@@ -29,10 +29,11 @@ AR = ar -rc
 ARFLAGS =
 RANLIB = ranlib -t
 
-#ARCH_DEP_CPPFLAGS += -D_BSD_SOURCE
+ARCH_DEP_CPPFLAGS += -D_BSD_SOURCE
+ARCH_DEP_CPPFLAGS += -DIOCSH_USE_READLINE
 ARCH_DEP_CPPFLAGS += -D_X86_ -Dlinux
 
 ARCH_DEP_LDFLAGS =
 ###ARCH_DEP_LDLIBS = -ldl -lpthread
-ARCH_DEP_LDLIBS = -lpthread
+ARCH_DEP_LDLIBS = -lpthread -lreadline