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authorMike Frysinger <vapier@gentoo.org>2012-11-28 23:04:32 -0500
committerMike Frysinger <vapier@gentoo.org>2012-12-03 14:54:31 -0500
commitc9d6789ebe028a260d3e5be0c26b7d02fdfe99fe (patch)
tree540b79252626c184e1f70bdad414532de905730d /bits/byteswap.h
parenta69646e9bdc80d9bd25ac0d6ba8cd8e05cfcf288 (diff)
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byteswap.h: fix gcc ver test for __builtin_bswap{32,64}
The __builtin_bswap* functions were introduced in gcc-4.3, not gcc-4.2. Fix the __GNUC_PREREQ tests to reflect this. Otherwise trying to compile code with gcc-4.2 falls down: In file included from /usr/include/endian.h:60, from /usr/include/ctype.h:40, /usr/include/bits/byteswap.h: In function 'unsigned int __bswap_32(unsigned int)': /usr/include/bits/byteswap.h:46: error: '__builtin_bswap32' was not declared in this scope /usr/include/bits/byteswap.h: In function 'long long unsigned int __bswap_64(long long unsigned int)': /usr/include/bits/byteswap.h:110: error: '__builtin_bswap64' was not declared in this scope Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'bits/byteswap.h')
-rw-r--r--bits/byteswap.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/bits/byteswap.h b/bits/byteswap.h
index e19e91ada7..7e5daedb83 100644
--- a/bits/byteswap.h
+++ b/bits/byteswap.h
@@ -39,7 +39,7 @@
(((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24))
#ifdef __GNUC__
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
static __inline unsigned int
__bswap_32 (unsigned int __bsx)
{
@@ -70,7 +70,7 @@ __bswap_32 (unsigned int __bsx)
| (((x) & 0x000000000000ff00ull) << 40) \
| (((x) & 0x00000000000000ffull) << 56)))
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
static __inline __uint64_t
__bswap_64 (__uint64_t __bsx)
{