Re: cross-building dtrace from Mac OS X - echo vs. \n

[christos%astron.com@localhost (Christos Zoulas)]

In article <20100328044750.GA21566%panix.com@localhost>,
Thor Lancelot Simon  <tls%coyotepoint.com@localhost> wrote:
>On Sun, Mar 28, 2010 at 06:24:46AM +0200, Hubert Feyrer wrote:
>>
>> Trying to cross-build -current with dtrace on OS X Snow Leopard fails.
>> src/external/cddl/osnet/lib/libdtrace/Makefile creates a dt_errtags.c 
>> file that has (literally):
>>
>>      /*\n * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.\n
>* Use is subject to license terms.\n */\n\n#pragma
>ident\t"%Z%%M%\t%I%\t%E% SMI"\n\n#include <dt_errtags.h>
>>      \nstatic const char *const _dt_errtags[] = {
>>      ...
>>
>> The problem here is that  
>> src/external/cddl/osnet/dist/lib/libdtrace/common/mkerrtags.sh tries to 
>> be smart about "echo", but fails. On OS X, it runs plain "echo", but as 
>> Sonw Leopard's echo apparently prints out "\n" literally, the above 
>> output results. IIRC this was different with Mac OS X Leopard.
>
>I think we fixed this in our local tree.  We might have missed a couple
>of these fixes when contributing the work back to NetBSD-current.
>
>I believe Darran's away for a few days.  I like fix #2, personally but I
>wonder if all likely build platforms have a printf executable these days.

Easier to make that a tool, rather than shell itself or making sure that
all shells don't use the built-in echo.

christos