[Interest] Problems with Qt5's build form git (release branch) due to qtjsondb and a nasty build setup

[Thiago Macieira]

On quarta-feira, 11 de dezembro de 2013 03:04:22, Jan Kundrát wrote:
> Hi, I tried compiling Qt5 from git (release branch) again tonight on my
> Linux machine (64bit Gentoo). The last time I did it was with Qt 5.1, so I
> had plenty of old stuff around.
> 
> TL;DR version -- despite the fact that I restored git modules as documented
> on the wiki, I still got hard to debug errors and wasted hours of time
> (both human and CPU) on this. A couple of questions/suggestions:
> 
> - If a submodule is known [1] to be broken, why is is linked to from the
> release branch of the top-level repo?

qtjsondb should be removed, indeed. We removed qtphonon.

Note that qt5.git contains modules that aren't part of the release, though.

> - Why is `make first` the default target instead of `make all`?

Because, as its name says, "first" is the first target.

But it doesn't make a difference, does it? Both targets should do the same.

> - How comes that running `make` does not report an error at the very end of
> the process?

It does. Maybe your make program is broken?

[snip]
> But if one looks closely enough, the process surely failed:
> 
>   $ echo $?
>   2

No, looks like it isn't. It reported an error.

> ...except that any indication about the failure is now five minutes deep in
> the scrollback (this is a SandyBridge i5 with 16 GB of RAM). There is *no*
> user-friendly error message which might possibly tell me that there was an
> error. I have to go actively looking for it via the exit status. This is
> not sane.

	http://savannah.gnu.org/projects/make/

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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