From 9f3472ad19480ad54c34a01ddffb93ee439303da Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Thu, 10 Feb 2011 00:52:22 -0500
Subject: Use bswap_32 from byteswap.h, if __builtin_bswap() is not available

---
 miner.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'miner.h')

diff --git a/miner.h b/miner.h
index 314796b..b396380 100644
--- a/miner.h
+++ b/miner.h
@@ -15,6 +15,12 @@
 #define WANT_VIA_PADLOCK 1
 #endif
 
+#if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+#define WANT_BUILTIN_BSWAP
+#else
+#include <byteswap.h>
+#endif
+
 #if defined(__i386__)
 #define WANT_CRYPTOPP_ASM32
 #endif
@@ -25,7 +31,11 @@
 
 static inline uint32_t swab32(uint32_t v)
 {
+#ifdef WANT_BUILTIN_BSWAP
 	return __builtin_bswap32(v);
+#else
+	return bswap_32(v);
+#endif
 }
 
 static inline void swap256(void *dest_p, const void *src_p)
-- 
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