[blfs-dev] Dependencies in X chapter

Bruce Dubbs bruce.dubbs at gmail.com
Fri Dec 27 09:36:55 PST 2013

Armin K. wrote:
> On 12/27/2013 01:26 PM, Pierre Labastie wrote:
>> Hi,
>> As you may have seen, I have added xorg-env as a dependency of xbitmaps. But
>> since xbitmaps is required by Xorg applications, which also requires mesalib,
>> which requires xcb-proto and the like, it may be not necessary. However,
>> theoretically, a user following the dependencies for X server backward may end
>> up building xbitmaps as the first package in the X chapter (I agree that the
>> probability is small). Furthermore xscreensaver requires only Xorg
>> applications (well, that is king of weird to me, but Armin has arguments about
>> the server running remotely). In this case, the probability is slightly higher.
> Well, if not anything, please just seperate runtime from build time deps
> as done with everything else. For example, I don't install anything
> after Xorg Drivers (where I install 5 driver packages, 2 gpus, 2 input
> and wacom driver for GNOME), and I skip  xcursor-themes and xorg fonts
> since I much prefer using ttf-fonts and dmz-cursor-theme (from debian).
> As Bruce mentioned, the X-Window-System dependency might be interpreted
> as everything from Introduction to Testing in the chapter or shortly the
> entire chapter.
> You could create a "virtual package" (the kind of packages that
> "provide" something in distros out there) where it would depend on a
> Xorg Server, a window manager and a terminal emulator, where you could
> choose a window manager/desktop environment and terminal emulator from
> any of the available in the book.
> Furthermore, I'd like to suggest adding same "virtual" package runtime
> dependency for Xorg Server, one should be for an input driver, where
> other should be for a DDX driver (xf86-video-*). One example of a
> "virtual package" I am proposing is "a MTA" dependency, where it lists
> all of the packages which provide sendmail command.

The MTA could be done easily enough with an entity.

> It is just a thought, and might be worth to implement but it's something
> worth mentioning. After all, it should be our purpose to teach people
> how something works together if I recall correctly.

For first time users, I recommend building everything in Xorg except 
those drivers not needed.  I have no problem with adding a note or a 
descriptive paragraph to packages like twm, xterm, xcursor, and fonts 
saying that these are only needed for testing (or exploring).  OTOH, I 
like to build these because it makes the testing easier at the end of 
the section.  It doesn't take that much time or resources.

   -- Bruce

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