Re: problems building on OSF1

[Eli Zaretskii]

> Date: Sun, 29 Oct 2006 18:12:30 +0100
> From: Anselm Helbig <address@hidden>
> Cc: address@hidden,
>       Chong Yidong <address@hidden>
> > > 
> > > 124 /* Disable IPv6 support for w32 until someone figures out how to do it
> > > 125    properly.  */
> > > 126 #ifdef WINDOWSNT
> > > 127 # ifdef AF_INET6
> > > 128 #  undef AF_INET6
> > > 129 # endif
> > > 130 #endif
> > 
> > No, Emacs doesn't assume that.  Rather, the configure script probes
> > for the IPv6 support and defines AF_INET6 accordingly.  Could you
> > please look into config.log and see where that test misbehaves, and why?
> 
> I don't see IPv6 mentioned during the configure process. The checks
> that are closest are these:  
> 
>   checking for socket... yes
>   checking netinet/in.h usability... yes
>   checking netinet/in.h presence... yes
>   checking for netinet/in.h... yes
>   checking arpa/inet.h usability... yes
>   checking arpa/inet.h presence... yes
>   checking for arpa/inet.h... yes
> 
> and that's all. I grepped the source tree for AF_INET6 and found it
> only in src/process.c and src/Changelog. Frankly, I don't know what
> else to look for. I hope I did mention that the code snippet I pasted
> before was from src/process.c? 

Oops, sorry, my faulty memory tricked me.  You are right, the
configure script doesn't test for the IPv6 support, it assumes that
any system that has AF_INET6 defined in its system headers support v6,
with the single exception of Windows.  Are you saying that OSF1 is
another exception?

> Thanks for your instructions. I tried to follow them but was not able
> to set a breakpoint at "Ferror" (Fsignal worked fine, gdb version is
> 5.2.1). I am not able to find Ferror in the sources as well.

Yep, my bad: I misremembered the function name.  Sorry.

> And breaking at Fsignal does not seem to be sufficient, temacs just
> terminates with an error without reaching the breakpoint at Fsignal.

That's strange.  Can you tell what exactly did you type, starting with
the GDB invocation?