Xapian discuss - Jul 2009 - xapian-compact 'undefined symbol' error

hi,

I'm attempting to merge two xapian databases using the xapian-compact
command.  I've tried with some different combinations of -n and -b options
and also with no options at all.  I keep getting the same error:

postlist ...xapian-compact: symbol lookup error: xapian-compact: undefined
symbol: _ZN10FlintTableC1ESsSsbib

has anyone else seen this?  I searched the archives first and couldn't find
any reference to it.

Thanks,
Paul

On Thu, Jul 30, 2009 at 03:43:23PM -0400, Paul Williamson
wrote:
> I'm attempting to merge two xapian databases using the xapian-compact
> command.  I've tried with some different combinations of -n and -b
options
> and also with no options at all.  I keep getting the same error:
> 
> postlist ...xapian-compact: symbol lookup error: xapian-compact: undefined
> symbol: _ZN10FlintTableC1ESsSsbib
This is a dynamic linking error, so command line options won't make much
difference.

It looks like I managed to break the library ABI in 1.0.13, but only for
a symbol used by xapian-compact (so this won't affect users of the
public API).

I think you'll only see this if you run xapian-compact from < 1.0.13 and
use libxapian15.so (or whatever it is named on your platform) from >1.0.13,
or vice versa.  That would explain why nobody has noticed
before.  If that's not your situation, please say.

It's pretty easy to fix - I just need to undo this change, but leave a
copy of the new constructor in place so xapian-compact from 1.0.13 and
1.0.14 will still work with libxapian15.so 1.0.15 and later.

For anyone maintaining binary packages of Xapian, I'd recommend holding
off packaging 1.0.13 and 1.0.14 if you haven't already.

Cheers,
    Olly