[Nix-dev] Postgis issues

[Marc Weber]

postgis was added by me many years ago, I guess nobody since then looked
at it. That time it was neccessary to prepare a databse before you were
able to use postgis - to simplify I added helper scripts like this:
pg_db_postgis_enable

Things might have changed a lot.

> Rebuilding OS works fine. Postgis appears to install (I can see 
> postgis-1.5.so), but i'm missing `postgis.control` and presumably one 
> extra step?
Eventually add use such installPhase:

installPhase = ''
  unset installPhase
  installPhase
  fail
'';

and use the -K flag when building, then you can have a look at the build
directory as well.

=> Neither the source nor the build nor the install directory contain
any .control files

> 'CREATE EXTENSION postgis; ERROR:  could not open extension control file 
> "/nix/store/[...]-postgresql-and-plugins-9.2.9/share/extension/postgis.control"'

Looking at http://postgis.net/source it looks like there are newer
versions as well:
  postgis-2.1.4.tar.gz pdf html (Release Notes)
  postgis-2.0.6.tar.gz pdf html (Release Notes)
  postgis-1.5.8.tar.gz pdf html (Release Notes)

Thus which ones do you care about?

This file (replace the postgis file) makes 1_5_8 build providing the
shell script, probably it still just works: http://mawercer.de/tmp/default.nix

The newer versions I added as well don't build yet for this reason:
  gcc: error: ../liblwgeom/.libs/liblwgeom.a: No such file or directory

there is a liblwgeom.la file, however replacing the .a version with the
.la version in Makefile.in makes gcc not know the file.

Does any C guru just know what's going wrong?

. o O (Yes - I know that I should rewrite composobaleDerivation ...)

Marc Weber