Re: Merging PCH to mainline

["Gareth Pearce" <tilps at hotmail dot com>]

> Geoffrey Keating <gkeating@apple.com> writes:
>
> > Now that the new C++ parser seems to have stabilised, I plan to merge
> > pch-branch to mainline later today.  I'd appreciate it if people could
> > avoid committing changes during this time.
>
> Is it supposed to work right now ? I just did a bootstrap/check with a 
> mainline
> updated half an hour ago and most/all pch tests in the test suite are 
> failing.
>
> Simple test cases fail too.
>
> Also -Winvalid-pch doesn't appear in gcc -v --help output.
>
> It has a single big PCH merge in the ChangeLog.
>
> Platform is i686-linux (SuSE 8.1)
>
> -Andi
On same platform myself (well debian instead of suse but anyway), finding 
pch somewhat different to i expected (heh i hadnt looked into it before), 
but trying to get it to work anyway.

Thought it seemed to be working - then i discovered -Winvalid-pch ... I 
would of thought that kind of warning would of been in -Wall ... and 
ofcourse I discovered that my pch file was invalid (differing optomisation 
flags)

I then got a ton of assembler errors - and all the errors go away if i use 
--save-temps!
Is save-temps disabling pch? - if so I assume a warning similar to the pipe 
disable warning will turn up at somepoint.
If not, is there some specific assembler version requirements ? - as -v 
gives

GNU assembler version 2.13.90.0.16 (i386-linux) using BFD version 
2.13.90.0.16 20021126 Debian GNU/Linux

other thing which i'm trying to learn is ... I try to use -include and it 
thinks i'm trying to pre-compile the argument i pass to -include. (or at 
least thats what it seems like...
g++ -c --include="blah.h" blah.cc (where blah.h and blah.cc are just empty 
files) - gives
<command line>:138977397:41144: -xc++-header: No such file or directory
<command line>:139764257:41576: -xc++-header: No such file or directory
and i get an a.out and a blah.h.pch!


Gareth - wishes he could reduce some of these multiple ICE's the new parser 
causes  down to submitable form.

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