dzen2: add the dzen2 application

[sergei-mironov]

Support for xinerama and xpm are enabled

[7c6f434c]

Do you really need a fully hand-written builder here?

[sergei-mironov]

I've reviewed the expression. Looks like it is one of the first I've ever wrote. Certainly, some things could be simpler: config file may be generated with writeText instead of sedding the patch. Still, the hand-written builder seems to be necessary because we have to build and install not only the main directory, but the gadgets directory as well (see sergei-mironov@5d396d8#diff-4014cccf7f97c40e7a4d27bf3a3c253aR27).

[7c6f434c]

I would:

— use sed -i with multiple files to edit config.mk in both places and call it "configurePhase"

— run make -C gadgets in postBuild

— run ``make -C gadgets install` in postInstall

And set these actions inside the main expression. I think it would make the expression simpler…

[drvirgilio]

Unaware of this pull request, I made my own expression and pull request here: #1386
This issue should be closed.

[sergei-mironov]

Thanks! Looks like I'm rather slow in maintaining this one ;)