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Use .p2align in ASMALIGN() macro

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The test for .align syntax was apparently unreliable with some compilers.
Using the .p2align directive instead avoids the need for this test.

Originally committed as revision 23428 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-06-02 18:55:17 +00:00
parent a76eec3b78
commit 42719e2051
1 changed files with 1 additions and 7 deletions
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8
configure vendored
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@ -2794,9 +2794,6 @@ if enabled gprof; then
add_ldflags -p
fi
# Find out if the .align argument is a power of two or not.
check_asm asmalign_pot '".align 3"'
enabled_any $THREADS_LIST && enable threads
check_deps $CONFIG_LIST \
@ -2819,7 +2816,6 @@ enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
echo "install prefix $prefix"
echo "source path $source_path"
echo "C compiler $cc"
echo ".align is power-of-two $asmalign_pot"
echo "ARCH $arch ($cpu)"
if test "$build_suffix" != ""; then
echo "build suffix $build_suffix"
@ -3051,8 +3047,6 @@ get_version LIBAVFORMAT libavformat/avformat.h
get_version LIBAVUTIL libavutil/avutil.h
get_version LIBAVFILTER libavfilter/avfilter.h
enabled asmalign_pot || align_shift="1 <<"
cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */
#ifndef FFMPEG_CONFIG_H
@ -3063,7 +3057,7 @@ cat > $TMPH <<EOF
#define CC_TYPE "$cc_type"
#define CC_VERSION $cc_version
#define restrict $_restrict
#define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
#define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
#define EXTERN_PREFIX "${extern_prefix}"
#define EXTERN_ASM ${extern_prefix}
EOF