From 31dd2dae292557272837f3145c83d54fe561e501 Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Thu, 4 Jan 2018 19:36:34 -0500
Subject: [PATCH] Fixed #29

---
 peglib.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/peglib.h b/peglib.h
index 5763e7b..20b5080 100644
--- a/peglib.h
+++ b/peglib.h
@@ -41,7 +41,11 @@
 
 namespace peg {
 
+#if __clang__ == 1 && __clang_major__ == 5 && __clang_minor__ == 0 && __clang_patchlevel__ == 0
+static void* enabler = nullptr; // workaround for Clang 5.0.0
+#else
 extern void* enabler;
+#endif
 
 /*-----------------------------------------------------------------------------
  *  any