[patch+7.9] compile: Filter out -fpreprocessed

[Jan Kratochvil]

On Tue, 03 Feb 2015 19:50:40 +0100, Doug Evans wrote:
> On Fri, Jan 16, 2015 at 2:42 PM, Jan Kratochvil
> <jan.kratochvil@redhat.com> wrote:
> > [...]
> > It is wrong that gcc puts -fpreprocessed into DW_AT_producer - I may post a gcc
> > patch for it.
> 
> Hi.
> I wasn't aware there are now rules for what can and cannot go in DW_AT_producer.
> DW_AT_producer has gone from being informational to having a formal
> spec (in the sense that something will break if, for example, a
> particular option is mentioned).
> Is this spec written down somewhere? [At least guidelines for what
> things may lead to breakage?]

No. Do you have a suggestion where to put it? Should it be only a GNU
extension or should it be even DWARF-standardized?


Jan