[postgis-devel] RE: pgxs

[strk at refractions.net]

Mark, your Makefile.pgxs was done in 0.9 branch times.
It looks like it was intended to be a single Makefile to
use when choosing pgxs mode. This can still be a good
layout, but things got complicated lately.

We now have a top Makefile.config and Version.in which
is included by about all subdirs.

Moreover, the pgxs does not tell anything about manual
pages and the like, and IMO does not give enough space
for module's data (talks about "random module data",
which would be dropped all in a single dir).

Are we sure we want to jump aboard ?
I'm not even sure we want to "mimic" this behaviour...

PostGIS might be grown enough for this.

--strk;

On Tue, Apr 26, 2005 at 08:38:03PM +0200, strk at refractions.net wrote:
> On Tue, Apr 26, 2005 at 03:43:06PM +0100, Mark Cave-Ayland wrote:
> (cuts)
> > So in brief, what I was suggesting was:
> > 
> > 	1) Keep the existing --with-pgsql-src=/ptr/to/pgsql configure option
> > for PG < 8.0.
> > 	This would still require a configure'd source tree as we do at the
> > moment,
> > 	however everyone who uses PostGIS already has one ready and so I
> > can't see this
> > 	being too much of a problem.
> > 
> > 	2) Add another --with-pgxs=/ptr/to/pg_config configure option for PG
> > >= 8.0 which
> > 	would allow PostGIS to build without a configure'd source tree.
> > These two options
> > 	are mutually exclusive.
> > 
> > The compromise here was to not support building PostGIS *without* a
> > configure'd source tree for PG versions < 8.0 in order to prevent us from
> > having to maintain our own modified copies of Makefiles within the project
> > (in particular to gain access to linker and compiler flags). The pgxs
> > Makefile is an actual fact a modified version of the contrib/ Makefile and
> > so building PostGIS shouldn't be a problem :)
> 
> Sounds good to me. Automatic configuration could use pg_config
> to detect wheter pgxs is available and use it or fall back to
> pgsql sources, which could be detected again (does ../../Makefile.global
> exists?) or require explicit --with-pgsql-src flag.
> 
> I'll make some tests tomorrow.
> 
> --strk;
> 
> > 
> > 
> > Kind regards,
> > 
> > Mark.
> > 
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