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From 1b74597f9327ae2d763ae8863ac784a5a0d6bb93 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Mon, 13 Mar 2017 13:36:55 -0400
Subject: [PATCH 2/3] Don't use _Generic because gcc 4.x doesn't have it...

Signed-off-by: Peter Jones <pjones@redhat.com>
---
 src/util.h | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/util.h b/src/util.h
index 0af7dbe..7ad6ce4 100644
--- a/src/util.h
+++ b/src/util.h
@@ -105,14 +105,29 @@
 	})
 #endif
 
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+#if __GNUC__ >= 5 && __GNUC_MINOR__ >= 1
 #define add(a, b, c) _Generic((c),					\
 			      int *: int_add(a,b,c),			\
 			      long *: long_add(a,b,c),			\
 			      unsigned long *: ulong_add(a,b,c))
-
 #define mult(a, b, c) _Generic((c),					\
 			      long *: long_mult(a,b,c),			\
 			      unsigned long *: ulong_mult(a,b,c))
+#endif
+#endif
+
+#ifndef add
+#define add(a, b, c) ({						\
+		(*(c)) = ((a) + (b));				\
+		})
+#endif
+#ifndef mult
+#define mult(a, b, c) ({					\
+		(*(c)) = ((a) * (b));				\
+		})
+#endif
+
 
 static inline int
 __attribute__((unused))
-- 
2.9.3