diff --git a/config.h.in b/config.h.in
index 0f8004f..fe3b3dd 100644
--- a/config.h.in
+++ b/config.h.in
@@ -1,5 +1,8 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
+/* Define to include ANSI arrow keys support in minix-editline */
+#undef ANSI_ARROWS
+
 /* Define to 1 if the `closedir' function returns void instead of `int'. */
 #undef CLOSEDIR_VOID
 
diff --git a/configure b/configure
index fefa824..1a42e85 100755
--- a/configure
+++ b/configure
@@ -1286,6 +1286,7 @@ Optional Features:
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
   --enable-default-complete      Enable default completion handler.
+  --enable-arrow-keys            Enable ANSI arrow keys.
 
 Some influential environment variables:
   CC          C compiler command
@@ -5003,6 +5004,23 @@ else
 fi
 
 
+ac_enable_arrow_keys=no
+# Check whether --enable-arrow-keys was given.
+if test "${enable_arrow_keys+set}" = set; then
+  enableval=$enable_arrow_keys;  ac_enable_arrow_keys=$enableval
+else
+   ac_enable_arrow_keys=no
+fi
+
+
+if test "x${ac_enable_arrow_keys}" = xyes ; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ANSI_ARROWS
+_ACEOF
+
+fi
+
 ac_config_files="$ac_config_files Makefile src/Makefile include/Makefile man/Makefile examples/Makefile"
 
 cat >confcache <<\_ACEOF
@@ -6342,3 +6360,4 @@ if test "$no_create" != yes; then
   $ac_cs_success || { (exit 1); exit 1; }
 fi
 
+
diff --git a/configure.ac b/configure.ac
index af1df1f..2528430 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,4 +55,15 @@ AC_ARG_ENABLE([default-complete],
    esac],[complete=false])
 AM_CONDITIONAL([COMPLETE], [test x$complete = xtrue])
 
+ac_enable_arrow_keys=no
+AC_ARG_ENABLE(arrow-keys,
+   [  --enable-arrow-keys            Enable ANSI arrow keys.],
+   [ ac_enable_arrow_keys=$enableval ], [ ac_enable_arrow_keys=no])
+
+if test "x${ac_enable_arrow_keys}" = xyes ; then
+    AC_DEFINE([ANSI_ARROWS], [],
+  [Define to include ANSI arrow keys support in minix-editline])
+fi
+
 AC_OUTPUT(Makefile src/Makefile include/Makefile man/Makefile examples/Makefile)
+
diff --git a/src/complete.c b/src/complete.c
index 4cc813f..1bb9ca7 100755
--- a/src/complete.c
+++ b/src/complete.c
@@ -25,15 +25,11 @@ strdup(p)
 **  strcmp-like sorting predicate for qsort.
 */
 static int
-compare(p1, p2)
-    CONST void  *p1;
-    CONST void  *p2;
+compare(void *p1, void *p2)
 {
-    CONST char  **v1;
-    CONST char  **v2;
+    char **v1 = (char **)p1;
+    char **v2 = (char **)p2;
 
-    v1 = (CONST char **)p1;
-    v2 = (CONST char **)p2;
     return strcmp(*v1, *v2);
 }