From 41433b803c5f9c8f6cd0f74890296314d354f840 Mon Sep 17 00:00:00 2001
From: Steve Slaven <bpk@hoopajoo.net>
Date: Tue, 5 Nov 2019 22:20:45 -0800
Subject: Add a list of options for --enable-regex


diff --git a/configure.ac b/configure.ac
index a27f2df..9e019dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,8 +14,13 @@ AS_IF([ test "${enable_vt100}" = yes ],
       [ AC_DEFINE(USE_VT100) ])
 
 AC_ARG_ENABLE(regex,
-    AS_HELP_STRING([--enable-regex],
-            [Enable regular expressions [[default=yes]]]),
+
+        AS_HELP_STRING([--enable-regex],
+            [Enable regular expressions [[default=yes]]])
+        []
+        [yes            - find first available: pcreposix, libc]
+        [pcreposix      - use pcreposix]
+        [libc           - use libc]
         ,
         [enable_regex="yes"]
 )
-- 
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