RE: [Plantool-developer] Flex errors and warnings

[Lomwel, Alexander-v. <ale...@mi...>]

Reinout;
has a good approach here. Lets stick to it. 

The root couse analysis is flawed however. flex creates from the tokeniser
files a flex.c file. Herein some defines steer the compilation like
YY_NO_UNPUT, and some useless cose is automaticly inserted like the command
yy_flex_realloc. (read BUG) These result in compiler warnings, which I
sought to surpress, but which cause problems with older versions of flex,
which don't seem to have the BUG, but also not know what to do with the
define.

	greetings;
		Alexander

PS Overal conclusion:
we live with the warnings.
Get rid of #define YY_NO_UNPUT, and the function CatchSillyWarnings().
	As MvR already did for the most part.



> -----Original Message-----
> From: Reinout van Rees [mailto:re...@va...]
> Sent: vrijdag 28 november 2003 13:22
> To: pla...@li...
> Subject: Re: [Plantool-developer] Flex errors and warnings
> 
> 
> On Fri, 28 Nov 2003, Maurits van Rees wrote:
> 
> > Lomwel, Alexander-van wrote:
> > > Hello Maurits;
> > >
> > > The lowest flex version I use is:
> > > 	flex version 2.5.4
> > >
> > > please upgrade.
> >
> > I am now updating my Debian system. flex 2.5.31 (which I 
> now have) is
> > the newest I can find... :(
> 
> It would be nice to use debian-stable as a kind of minimum. Upgrading
> something like flex beyond what's normally available also means adding
> a new gcc, a new libc and basically replacing half your system...
> 
> Unless there is something *really* wrong with the old version or if
> something big is missing: make sure it compiles/parses/whatever with
> the older version. From what I saw till now it was mostly syntax
> errors which the newer one allowed, undefined variables in C for which
> the declaration had to be moved upwards, etc. Hardly too
> inconveniencing.
> 
> And if something slips through, Maurits (or me) catches it.
> 
> Reinout
> 
> -- 
> Reinout van Rees - re...@va...
> http://vanrees.org/
> "I bet that's a real nice ship now that the rats have left."
> 
> 
> 
> 
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