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configure: check asm support using $as

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Originally committed as revision 17828 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2009-03-05 21:20:04 +00:00
parent 313c46a610
commit f65883c812
1 changed files with 11 additions and 2 deletions
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13
configure vendored
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@ -525,12 +525,19 @@ check_cpp(){
check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
}
check_as(){
log check_as "$@"
cat > $TMPC
log_file $TMPC
check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
}
check_asm(){
log check_asm "$@"
name="$1"
asm="$2"
shift 2
check_cc "$@" <<EOF && enable $name || disable $name
check_as "$@" <<EOF && enable $name || disable $name
void foo(void){ __asm__ volatile($asm); }
EOF
}
@ -1798,7 +1805,9 @@ EOF
sym=$($nm -P -g $TMPO | grep ff_extern)
extern_prefix=${sym%%ff_extern*}
check_asm inline_asm '""'
check_cc <<EOF && enable inline_asm
void foo(void) { __asm__ volatile ("" ::); }
EOF
if enabled x86; then
# check whether EBP is available on x86