From 8cef42b8ccf28fb3668a83990a0a5209265fa4c6 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Mon, 31 Mar 2014 21:08:58 +0900
Subject: [PATCH] add a note on the dependency on regex.h

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 8f9a5053..a9fc189d 100644
--- a/README.md
+++ b/README.md
@@ -188,6 +188,7 @@ picrin scheme depends on some external libraries to build the binary:
 - lex (preferably, flex)
 - getopt
 - readline (optional)
+- regex.h of POSIX.1 (optional)
 
 Optional libraries are, if cmake detected them, automatically enabled.
 The compilation is tested only on Mac OSX and Ubuntu. I think (or hope) it'll be ok to compile and run on other operating systems such as Arch or Windows, but I don't guarantee :(