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Re: AC_PROG_LEX broken on IRIX with MIPSpro Compilers

From: Peter O'Gorman
Subject: Re: AC_PROG_LEX broken on IRIX with MIPSpro Compilers
Date: Sat, 29 Dec 2007 12:55:37 -0600
User-agent: Thunderbird (X11/20071115)

Paul Eggert wrote:
> "Peter O'Gorman" <address@hidden> writes:
>> I see no reason why autoconf should not work with flex-2.5.4 though.
> I suppose it depends on what one means by "work".  My own suggestion
> would be for Autoconf to reject a "lex" implementation that does not
> implement yyless correctly, as apparently was the case with flex
> 2.5.4.  The intent of that section of Autoconf, as far as I can tell
> (Akim hasn't weighed in), is to check that an acceptable version of
> "lex" is available.
> Any fix in this area would be fairly low priority, I would think.
> flex 2.5.4 dates back to when? 1997?  And flex 2.5.31 has been out
> since 2003.  As a general rule, lex and yacc should be invoked only by
> installers who have modified the source code; we can expect these guys
> to be a bit more up-to-date than usual.

Hmm. Maybe. Note that Mac OS X 10.4 has flex-2.5.4, as does, as far as I
know, *BSD (I looked at OpenBSD-4.1 and FreeBSD-6.2).

I'm happy enough to wait for  Akim to chime in though.

Peter O'Gorman

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