compiling bootstrap 3.1.1?

[pgee70]

Hi. don't know if it is me or not, but using lessphp i get the error:

Fatal Error: parse error: failed at `&:extend(.clearfix all);
/bootstrap/mixins.less on line 643

but recess is giving the same error as well. so who knows?

/ Centered container element
.container-fixed() {
margin-right: auto;
margin-left: auto;
padding-left: (@grid-gutter-width / 2);
padding-right: (@grid-gutter-width / 2);
&:extend(.clearfix all);
}

:643 is &:extend(.clearfix all);

[Krinkle]

See issue #503.