• Andre Przywara's avatar
    tools/Makefile: suppress "which swig" error output · d0fc6dc5
    Andre Przywara authored
    The Makefile in tools/ tries to find the "swig" utility by calling "which".
    If nothing is found in the path, some versions of which will print an error
    message:
    $ make clean
    which: no swig in (/usr/local/bin:/usr/bin:/bin)
    
    This does not apply to all version of "which", though:
    $ echo $0
    bash
    $ type which
    which is aliased to `type -path'
    $ which foo				<== this version is OK
    $ /usr/bin/which foo			<== this one is chatty
    /usr/bin/which: no foo in (/usr/local/bin:/usr/bin:/bin)
    $ sh					<== make uses /bin/sh
    sh-4.3$ which foo			<== no alias here
    which: no foo in (/usr/local/bin:/usr/bin:/bin)
    
    This error message is rather pointless in our case, since we just have
    this very check to care for this. So add stderr redirection to suppress
    the message.
    Signed-off-by: 's avatarAndre Przywara <andre.przywara@arm.com>
    Reviewed-by: 's avatarSimon Glass <sjg@chromium.org>
    d0fc6dc5
Makefile 7.71 KB