Issue #23735: Add SIGWINCH handler for Readline 6.3+ support, by Eric Price
diff --git a/configure.ac b/configure.ac
index 282610a..e7d7bfc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4527,6 +4527,11 @@
AC_DEFINE(HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK, 1,
[Define if you have readline 4.0]), ,$READLINE_LIBS)
+# also in 4.0, but not in editline
+AC_CHECK_LIB(readline, rl_resize_terminal,
+ AC_DEFINE(HAVE_RL_RESIZE_TERMINAL, 1,
+ [Define if you have readline 4.0]), ,$READLINE_LIBS)
+
# check for readline 4.2
AC_CHECK_LIB(readline, rl_completion_matches,
AC_DEFINE(HAVE_RL_COMPLETION_MATCHES, 1,