Update draft release notes to 1.7.10

[git.git] / compat / bswap.h

diff --git a/compat/bswap.h b/compat/bswap.h
index f3b8c44181776a99c3eb79e15542104d67001c9d..5061214f73d2d51cfd1d49b97b4e69be913928bd 100644 (file)
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -17,16 +17,20 @@ static inline uint32_t default_swab32(uint32_t val)
                ((val & 0x000000ff) << 24));
 }
 
+#undef bswap32
+
 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
 
-#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 bswap32 git_bswap32
+static inline uint32_t git_bswap32(uint32_t x)
+{
+       uint32_t result;
+       if (__builtin_constant_p(x))
+               result = default_swab32(x);
+       else
+               __asm__("bswap %0" : "=r" (result) : "0" (x));
+       return result;
+}
 
 #elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))