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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 /sysdeps/x86
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 'sysdeps/x86')
-rw-r--r--sysdeps/x86/bits/byteswap.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86/bits/byteswap.h b/sysdeps/x86/bits/byteswap.h
index babe567432..581687c7f2 100644
--- a/sysdeps/x86/bits/byteswap.h
+++ b/sysdeps/x86/bits/byteswap.h
@@ -40,7 +40,7 @@
       (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
 
 #ifdef __GNUC__
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
 static __inline unsigned int
 __bswap_32 (unsigned int __bsx)
 {
@@ -104,7 +104,7 @@ __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)
 {