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From: Andreas Schwab <schwab@linux-m68k.org>
To: Charles Wilson <cygwin@cwilson.fastmail.fm>
Cc: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>,  Nick Clifton <nickc@redhat.com>,  gcc-patches@gcc.gnu.org,  gdb-patches@sourceware.org,  binutils@sourceware.org
Subject: Re: RFA/RFC: Pass --cache-file=/dev/null on to subconfigures
References: <m3ljk31fwr.fsf@redhat.com> 	<20090925110629.GA25946__23064.0259491794$1253876825$gmane$org@ins.uni-bonn.de> 	<4ABCD858.3030400__7010.59009084037$1253890491$gmane$org@cwilson.fastmail.fm>
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Date: Fri, 25 Sep 2009 17:13:00 -0000
In-Reply-To: <4ABCD858.3030400__7010.59009084037$1253890491$gmane$org@cwilson.fastmail.fm> 	(Charles Wilson's message of "Fri, 25 Sep 2009 10:48:56 -0400")
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Charles Wilson <cygwin@cwilson.fastmail.fm> writes:

> I've seen it happen -- building gdb/insight which is part of the src
> tree if not gcc specfically -- when a precious variable contained a
> leading space. I think it was because the top-level configure
> automatically augmented it as follows, when the var was originally empty:
>
>   X="$X --some-new-flag"
>
> For some reason, the sub-configure had the variable without the leading
> space, so it complained of a mismatch.

That should no longer be an issue with the switch to autoconf 2.64.
Such whitespace differences are now ignored.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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"And now for something completely different."