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Re: [toplevel bootstrap PATCH] Add profiledbootstrap

From: Ian Lance Taylor <ian at wasabisystems dot com>
To: Daniel Jacobowitz <drow at false dot org>
Cc: Nathanael Nerode <neroden at twcny dot rr dot com>, Paolo Bonzini <bonzini at gnu dot org>, gcc-patches at gcc dot gnu dot org
Date: 09 Jun 2004 00:03:22 -0400
Subject: Re: [toplevel bootstrap PATCH] Add profiledbootstrap
References: <40BEEB10.6010903@gnu.org> <40C67425.4000001@twcny.rr.com><20040609040014.GA28274@nevyn.them.org>

Daniel Jacobowitz <drow@false.org> writes:

> > The top level isn't allowed to use GNU make, IIRC -- aren't double-colon 
> > rules a GNU makeism?  :-P  Or are they portable?
> > 
> > (And isn't this a nightmare?  Thanks for your work.)
> 
> Even if they are a GNU makeism, the question is whether they'll cause
> parse errors in other Make implementations - the bootstrap rules belong
> to GCC.
> 
> The GNU make manual does not list them as an extension, so I assume
> they are at least a little portable...

Double colon rules in Makefiles are portable.  To be portable, a
particular target must have either only single colon rules or only
double colon rules.

(Not that I know what this is about.)

Ian

References:
- [toplevel bootstrap PATCH] Add profiledbootstrap
  - From: Paolo Bonzini
- Re: [toplevel bootstrap PATCH] Add profiledbootstrap
  - From: Nathanael Nerode
- Re: [toplevel bootstrap PATCH] Add profiledbootstrap
  - From: Daniel Jacobowitz

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