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Port ASMALIGN preprocessor macro for .align handling from FFmpeg.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19377 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego 2006-08-12 23:58:26 +00:00
parent 9481172438
commit 992379a376
1 changed files with 21 additions and 0 deletions
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21
configure vendored
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@ -1698,6 +1698,7 @@ _vstream=auto
_pthreads=yes _pthreads=yes
_ass=auto _ass=auto
_rpath=no _rpath=no
_asmalign_pot=auto
for ac_option do for ac_option do
case "$ac_option" in case "$ac_option" in
# Skip 1st pass # Skip 1st pass
@ -2217,7 +2218,24 @@ if x86 ; then
echores "failed" echores "failed"
die "obsolete binutils version" die "obsolete binutils version"
fi fi
echocheck ".align is a power of two"
if test "$_asmalign_pot" = auto ; then
_asmalign_pot=no
cat > $TMPC << EOF
asm (".align 3");
EOF
cc_check && _asmalign_pot=yes
fi fi
if test "$_asmalign_pot" = "yes" ; then
_def_asmalign_pot='#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\n\t"'
else
_def_asmalign_pot='#define ASMALIGN(ZEROBITS) ".align 1<<" #ZEROBITS "\n\t"'
fi
echores $_asmalign_pot
fi #if x86
#FIXME: This should happen before the check for CFLAGS.. #FIXME: This should happen before the check for CFLAGS..
if ppc ; then if ppc ; then
@ -7642,6 +7660,9 @@ $_def_memalign
$_def_map_memalign $_def_map_memalign
$_def_memalign_hack $_def_memalign_hack
/* assembler handling of .align */
$_def_asmalign_pot
/* Define this if your system has the "alloca.h" header file */ /* Define this if your system has the "alloca.h" header file */
$_def_alloca $_def_alloca