PATCH: gengtype-lex.l warning
Joseph S. Myers
joseph@codesourcery.com
Wed Jan 7 02:11:00 GMT 2009
On Tue, 6 Jan 2009, Kaveh R. Ghazi wrote:
> From: "Joseph S. Myers" <joseph@codesourcery.com>
>
> > Have the flex maintainers fixed the general class of problems with the
> > recent flex release series I described in
> > <http://gcc.gnu.org/ml/gcc/2007-01/msg00884.html>?
>
> I don't know. However I've successfully built GCC from svn on cfarm boxes
> containing flex-2.5.31 and 2.5.33. So regardless of whether the m4 mangling
> issue is fixed in general, it doesn't seem to affect *our* lex files.
Not affecting GCC's lex files simply means users of those flex versions
can build GCC with them. Affecting non-GCC lex files means requiring a
newer version for GCC would potentially require some users to maintain
multiple versions of flex for different purposes, which is rather
different from a normal increase in minimum required version (although
there are various cases where *exact* versions need to be required for GCC
and multiple versions are unavoidable).
--
Joseph S. Myers
joseph@codesourcery.com
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