Add configuration option for a list of extensions to compile

[rdunklau]

Currently, the configuration file supports various features. It would be great if we could similarly give a list of extensions we would like to compile and install in the current instance.

Those extensions could either:

• be installed via the pgxnclient (simple, but add another dependency)
• be built from an extension directory (to be specified in the config file), where the name of the extension should match the source folder for this extension (more grassroots, but doesn't need any dependency).

[marco44]

Mmm, maybe we should only do that for extensions conforming to the PGXS way of doing this ? This would be trivial...

[rjuju]

+1 for PGXN.

[marco44]

I wrote PGXS :)

[rjuju]

Indeed :) I meant PGXN client, simplest solution but with a dependency.