From 106f29f805836aee4e5da58cc1ccd82445c10367 Mon Sep 17 00:00:00 2001
From: Jani Taskinen <jani@php.net>
Date: Tue, 4 Aug 2009 11:20:49 +0000
Subject: [PATCH] - Fixed bug #48608 (Invalid libreadline version not detected
 during configure)

---
 ext/readline/config.m4 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ext/readline/config.m4 b/ext/readline/config.m4
index 2fb8ca42c3..a320deeb42 100644
--- a/ext/readline/config.m4
+++ b/ext/readline/config.m4
@@ -46,6 +46,13 @@ if test "$PHP_READLINE" && test "$PHP_READLINE" != "no"; then
     -L$READLINE_DIR/$PHP_LIBDIR $PHP_READLINE_LIBS
   ])
 
+  PHP_CHECK_LIBRARY(readline, rl_pending_input,
+  [], [
+    AC_MSG_ERROR([invalid readline installation detected. Try --with-libedit instead.])
+  ], [
+    -L$READLINE_DIR/$PHP_LIBDIR $PHP_READLINE_LIBS
+  ])
+
   PHP_CHECK_LIBRARY(readline, rl_callback_read_char,
   [
     AC_DEFINE(HAVE_RL_CALLBACK_READ_CHAR, 1, [ ])
-- 
2.50.1