Use a configure check for bswap16 instead of gcc version #ifdefs.

Fixes a build problem on apple clang.

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
This commit is contained in:
Ralph Giles 2014-11-04 11:58:45 -08:00 committed by Erik de Castro Lopo
parent 1f30b3e711
commit 7a671e7c41
2 changed files with 2 additions and 1 deletions

View File

@ -67,6 +67,7 @@ AC_CHECK_HEADERS([stdint.h inttypes.h byteswap.h sys/param.h termios.h x86intrin
AC_HEADER_TIOCGWINSZ
XIPH_C_BSWAP32
XIPH_C_BSWAP16
ac_cv_c_big_endian=0
ac_cv_c_little_endian=0

View File

@ -34,7 +34,7 @@
#if HAVE_BSWAP32 /* GCC and Clang */
/* GCC prior to 4.8 didn't provide bswap16 on x86_64 */
#if __GNUC__ <= 4 && __GNUC_MINOR__ < 8
#ifndef HAVE_BSWAP16
static inline unsigned short __builtin_bswap16(unsigned short a)
{
return (a<<8)|(a>>8);