From 710f66af351abb43e43e27ac23cb488babbaa04e Mon Sep 17 00:00:00 2001
From: Edward Thomson <ethomson@microsoft.com>
Date: Tue, 3 Feb 2015 18:41:15 -0500
Subject: [PATCH 1/2] bswap: remove unused bswap

---
 src/bswap.h  | 97 ----------------------------------------------------
 src/common.h |  1 -
 2 files changed, 98 deletions(-)
 delete mode 100644 src/bswap.h

diff --git a/src/bswap.h b/src/bswap.h
deleted file mode 100644
index 486df82f4..000000000
--- a/src/bswap.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) the libgit2 contributors. All rights reserved.
- *
- * This file is part of libgit2, distributed under the GNU GPL v2 with
- * a Linking Exception. For full terms see the included COPYING file.
- */
-
-#include "common.h"
-
-/*
- * Default version that the compiler ought to optimize properly with
- * constant values.
- */
-GIT_INLINE(uint32_t) default_swab32(uint32_t val)
-{
-	return (((val & 0xff000000) >> 24) |
-		((val & 0x00ff0000) >> 8) |
-		((val & 0x0000ff00) << 8) |
-		((val & 0x000000ff) << 24));
-}
-
-#undef bswap32
-
-GIT_INLINE(uint16_t) default_swab16(uint16_t val)
-{
-	return (((val & 0xff00) >> 8) |
-		((val & 0x00ff) << 8));
-}
-
-#undef bswap16
-
-#if defined(__GNUC__) && defined(__i386__)
-
-#define bswap32(x) ({ \
-	uint32_t __res; \
-	if (__builtin_constant_p(x)) { \
-		__res = default_swab32(x); \
-	} else { \
-		__asm__("bswap %0" : "=r" (__res) : "0" ((uint32_t)(x))); \
-	} \
-	__res; })
-
-#define bswap16(x) ({ \
-	uint16_t __res; \
-	if (__builtin_constant_p(x)) { \
-		__res = default_swab16(x); \
-	} else { \
-		__asm__("xchgb %b0,%h0" : "=q" (__res) : "0" ((uint16_t)(x))); \
-	} \
-	__res; })
-
-#elif defined(__GNUC__) && defined(__x86_64__)
-
-#define bswap32(x) ({ \
-	uint32_t __res; \
-	if (__builtin_constant_p(x)) { \
-		__res = default_swab32(x); \
-	} else { \
-		__asm__("bswapl %0" : "=r" (__res) : "0" ((uint32_t)(x))); \
-	} \
-	__res; })
-
-#define bswap16(x) ({ \
-	uint16_t __res; \
-	if (__builtin_constant_p(x)) { \
-		__res = default_swab16(x); \
-	} else { \
-		__asm__("xchgb %b0,%h0" : "=Q" (__res) : "0" ((uint16_t)(x))); \
-	} \
-	__res; })
-
-#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
-
-#include <stdlib.h>
-
-#define bswap32(x) _byteswap_ulong(x)
-#define bswap16(x) _byteswap_ushort(x)
-
-#endif
-
-#ifdef bswap32
-
-#undef ntohl
-#undef htonl
-#define ntohl(x) bswap32(x)
-#define htonl(x) bswap32(x)
-
-#endif
-
-#ifdef bswap16
-
-#undef ntohs
-#undef htons
-#define ntohs(x) bswap16(x)
-#define htons(x) bswap16(x)
-
-#endif
diff --git a/src/common.h b/src/common.h
index a8f60fe48..4b4a99775 100644
--- a/src/common.h
+++ b/src/common.h
@@ -58,7 +58,6 @@
 #include "git2/types.h"
 #include "git2/errors.h"
 #include "thread-utils.h"
-#include "bswap.h"
 
 #include <regex.h>
 

From a2e4593e8259c58b60579c5579330f03587a9ce6 Mon Sep 17 00:00:00 2001
From: Edward Thomson <ethomson@microsoft.com>
Date: Tue, 3 Feb 2015 18:41:40 -0500
Subject: [PATCH 2/2] hash_generic: __extension__ keyword for pedantry

---
 src/hash/hash_generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hash/hash_generic.c b/src/hash/hash_generic.c
index 32fcd869c..472a7a696 100644
--- a/src/hash/hash_generic.c
+++ b/src/hash/hash_generic.c
@@ -18,7 +18,7 @@
  * rotate with a loop.
  */
 
-#define SHA_ASM(op, x, n) ({ unsigned int __res; __asm__(op " %1,%0":"=r" (__res):"i" (n), "0" (x)); __res; })
+#define SHA_ASM(op, x, n) (__extension__ ({ unsigned int __res; __asm__(op " %1,%0":"=r" (__res):"i" (n), "0" (x)); __res; }))
 #define SHA_ROL(x,n)	SHA_ASM("rol", x, n)
 #define SHA_ROR(x,n)	SHA_ASM("ror", x, n)