AC_DEFUN([AC_TRY_EVAL2],
[{ (eval echo configure:__oline__: \"[$]$1\") 1>&AS_MESSAGE_LOG_FD; (eval [$]$1) 2>&AS_MESSAGE_LOG_FD; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
AC_DEFUN([AC_TRY_COMPILE2],
[cat > conftest.$ac_ext <<EOF
[[$1]
int main(void) {
[$2]
; return 0; }
EOF
if AC_TRY_EVAL2(ac_compile); then
ifelse([$3], , :, [rm -rf conftest*
$3])
else
echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
ifelse([$4], , , [ rm -rf conftest*
$4
])fi
rm -f conftest*])