[Xapian-devel] Xapian core build failure under gcc 2.95

[Olly Betts]

On Thu, Jan 15, 2009 at 04:53:52PM +1300, David Sainty wrote:
> David Sainty wrote:
> >Under gcc 2.95 Xapian fails to build like so:
> 
> I can confirm that the attached patch fixes the build under gcc 2.95 
> (after an automake).

Thanks for the patch.

But it seems there's something odd going on, as other subdirectories
also include headers from the same directory without an explicit -I.
The files here are generated, but that shouldn't make a difference as
they are shipped in the tarball and it appears you're building from the
1.0.10 source tarball.

Perhaps the issue is the "#line" directives with full paths in
queryparser_internal.cc - if GCC 2.95 resolves header includes relative
to the filename given by "#line" then that would cause this problem.

Could you try:

perl -pi -e 's/^#line.*//' queryparser/queryparser_internal.cc

And then building without your patch.

(Unfortunately I no longer have access to GCC 2.95 to test this myself).

Another question - what's the reason for using GCC 2.95?

We came quite closing to dropping support for GCC < 3 a while back (but
instead we ended up requiring 2.95.3 which added <sstream>).  But I'd
assumed that 2.95 was probably no longer used by now, and there are a
few minor issues we currently work around to keep support for it, so if
there are still people using it I'm interested as to why.

Cheers,
    Olly