Xapian discuss - May 2023 - LIttle problem when installing xapian-bindings-1.4.22

Dear Olly,
Thank you so much for the prompt and candid reply to my query; Appreciated very
much.
I have installed Xapian-core-1.4.22 already. But I did not know about this early
before I started to configure xapian-bindings-1.4.22.  I would love to bind
Java, Ruby, Perl, TCL/TK, Python3, PHP,Lau:
 
       --with-csharp	    enable CSharp bindings
       --with-java	    enable Java bindings
       --with-lua	    enable Lua bindings
       --with-perl	    enable Perl bindings
       --with-php	    enable PHP bindings
       --with-python	    enable Python 2 bindings
       --with-python3	    enable Python 3 bindings
       --with-ruby	    enable Ruby bindings
       --with-tcl	    enable Tcl bindings

But now I am stuck with this problem. Does it mean that 

 You said, " Generally xapian-bindings with a newer xapian-core (within the
same
> stable release series) should work."  But it is the newer
xapian-core-1.4.22 which is installed in my system already that is having Xapian
library version 1.4.18,  So the xapian-bindings-1.4.22 is saying the core an
older library.
The thing is I wanted to install GTK 4.0 and others and this is one of the
chains of dependencies I am led into to install GTK.

 What do you advise me more ?

  With my best regards

Mike

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------- Original Message -------
On Monday, May 22nd, 2023 at 10:33 PM, Olly Betts <olly at survex.com>
wrote:

> On Mon, May 22, 2023 at 10:35:25PM +0000, nebulaaksum wrote:
> 
> > I was just installing xapian-bindings-1.4.22 on Ubuntu 22.04, but I
> > got the following warning message:
> > 
> > configure: WARNING: Xapian library is version 1.4.18 but the bindings
> > are version 1.4.22 - we strongly recommend using matching versions.
> 
> 
> The issue here is mostly that xapian-bindings wraps almost the entire
> C++ API (the main exception if the Unicode stuff like
> Xapian::Utf8Iterator as other languages generally have their own
> Unicode support which is a better option) so it's more tightly coupled
> to the xapian-core API than an application typically is.
> 
> In your case, xapian-core 1.4.19 added a new
> `Xapian::QueryParser::FLAG_NO_POSITIONS` flag and xapian-bindings 1.4.19
> and later will try to wrap this, so I expect you'll get a compilation
> failure as the headers from xapian-core 1.4.18 won't provide this flag.
> 
> Generally xapian-bindings with a newer xapian-core (within the same
> stable release series) should work. We don't do regular testing
> of mismatched combinations in either direction though.
> 
> > I tried to check my xapian core-1.4.22 for the library, but could not
> > find that library. How do I fix this?
> 
> 
> Install xapian-core-1.4.22 from source too.
> 
> Or you could use the packages of xapian-bindings from Ubuntu 22.04 if
> you're using Java, Python3, Ruby or Tcl and are happy with using
1.4.18:
> 
> https://packages.ubuntu.com/source/jammy/xapian-bindings
> 
> There is also a PPA with backported packages (of the same languages
> as Ubuntu 22.04 has packages for), but I've not updated that since
> 1.4.18, so that doesn't currently help if you want newer:
> 
> https://launchpad.net/~xapian/+archive/ubuntu/backports
> 
> Updating it is on my todo list.
> 
> Cheers,
> Olly

On Tue, May 23, 2023 at 03:06:50AM +0000, nebulaaksum
wrote:
> You said, " Generally xapian-bindings with a newer xapian-core (within
> the same stable release series) should work." 
> But it is the newer xapian-core-1.4.22 which is installed in my system
> already that is having Xapian library version 1.4.18,  So the
> xapian-bindings-1.4.22 is saying the core an older library.  
I suspect you have the Ubuntu libxapian-dev package installed (which is
version 1.4.18 in the version you're using) and that's what
xapian-bindings's configure is finding and trying to use (by default it
looks in $PATH to find the xapian-config script which xapian-core
installs).

If you've built and installed xapian-core 1.4.22 from source, by default
it will install in prefix /usr/local in which case you can tell
xapian-bindings to use that:

./configure XAPIAN_CONFIG=/usr/local/bin/xapian-config

If you specified --prefix when you ran configure for xapian-core, then
adjust the path here appropriately.
> The thing is I wanted to install GTK 4.0 and others and this is one of
> the chains of dependencies I am led into to install GTK. 
> 
>  What do you advise me more ?
Unless I had a good reason to be building GTK 4.0 from source, I'd
just install the packaged version from the Ubuntu repos:

sudo apt install libgtk-4-dev

You may not get the very latest version, but it's a lot less work.

Cheers,
    Olly