Re: Error compiling libobjc2 - unwind.h not found

[Christopher Armstrong]

Hi David

Thanks for tracking this down so quickly.

I realised that I forgot to mention that I'm using clang (r82855) to  
compile it with (I presume that you need clang to compile code that  
uses libobjc2?). If I search the headers included with llvm, its not  
present. I didn't assume I should use GCC to compile libobjc2, because  
as suggested by Matt Rice, and now by yourself, its included with gcc  
(on my system at /usr/lib/gcc/i486-linux-gnu/4.3/include/unwind.h).

I've tried with your fix, but because its not included with llvm,  
obviously I'm going to have to either use GCC or include this header  
somehow.

Cheers
Chris

On 04/10/2009, at 4:57 PM, David Chisnall wrote:

> Ah, well spotted.  I've fixed that now.  Libobjc was originally  
> intended to be built as part of gcc (modularity is not something  
> that gcc team are big fans of) and so used "unwind.h" to make sure  
> it picked up the version of the header provided by GCC, not the one  
> provided by the system, which is the exact opposite of what we want.
>
> David
>
> On 4 Oct 2009, at 15:52, Matt Rice wrote:
>
> > On Sun, Oct 4, 2009 at 7:30 AM, David Chisnall <address@hidden>  
> > wrote:
> > > Hi Chris,
> > >
> > > It's a private GCC header which, unfortunately, varies a little  
> > > bit between
> > > platforms.  I'm a bit surprised it isn't found for you; it has  
> > > been on all
> > > of the platforms that I've tried so far, but in some uleb128 is  
> > > defined and
> > > in others it isn't.  I plan on removing this dependency soon,  
> > > because the
> > > unwind headers just contain copies of the functions from the ABI
> > > specification (which doesn't seem to stop the FSF from slapping a  
> > > GPL header
> > > on them).
> >
> > Yeah, i thought it referred to that unwind.h,
> > the use of "unwind.h" made me wonder though, why not <unwind.h>?
> >
> > http://packages.debian.org/lenny/gcc-3.4
> > http://packages.debian.org/lenny/gcc-4.1
> > http://packages.debian.org/lenny/gcc-4.2
> > http://packages.debian.org/lenny/gcc-4.3
> >
> > all of the 'list of files' links i've followed from those contain  
> > the header.
> > e.g.
> > http://packages.debian.org/lenny/sparc/gcc-4.3/filelist
> > http://packages.debian.org/sid/mips/gcc-4.1/filelist
> > http://packages.debian.org/squeeze/mipsel/gcc-4.1/filelist
> >
> >
> > _______________________________________________
> > Gnustep-dev mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/gnustep-dev
>
>
> -- Sent from my brain

--------
Christopher Armstrong
address@hidden