From fc11aff9559da4725037c21f7a4732f5f009d975 Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Sun, 11 Jan 2015 13:32:31 -0200
Subject: Common: Fix SCOPE_EXIT to actually create unique identifiers.

---
 src/common/common_funcs.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/common/common_funcs.h')

diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index c2750a63..229eb74c 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -31,6 +31,10 @@ template<> struct CompileTimeAssert<true> {};
 
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
 
+/// Textually concatenates two tokens. The double-expansion is required by the C preprocessor.
+#define CONCAT2(x, y) DO_CONCAT2(x, y)
+#define DO_CONCAT2(x, y) x ## y
+
 #ifndef _MSC_VER
 
 #include <errno.h>
-- 
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