Re: [Mingw-cross-env-list] gtk3 and gtkmm3

[Nagaev Boris]

On Mon, Aug 31, 2015 at 12:05 AM, Nagaev Boris <address@hidden> wrote:
> On Sun, Aug 30, 2015 at 11:37 PM, Gerardo Ballabio
> <address@hidden> wrote:
>> Nobody has bothered to build gtk3 for years, and now we're two in the same
>> week. That's great :-)
>>
>> The pull request adds a higher version of gtk3 than mine. If it works, you
>> should pull it. I'll try building it and will let you know.
>>
>> It doesn't include a test program though, so you can add mine. And it
>> doesn't include gtkmm3. You may add my files for that, or we may upgrade the
>> files to build a version aligned with gtk3. I'll try that too.
>
> I'll try to build the pull request. I start with system without
> gdk-pixbuf installed to make sure it is needed. Then I'll try to add
> your test program and gtkmm3.
>
>> I could not reproduce the Pango issue. It has always built fine for me.
>> Today I tried building from a clean install of MXE and again it worked. I
>> can't debug an issue that I can't reproduce.
>>
>> Since you now managed to build gtk3 and gtkmm3, you must have built pango as
>> well, so I suppose your failed attempts had been caused by the missing
>> dependency. That's unrelated to the reported issue, which is a linker error
>> on some missing symbols from libfontconfig. Have you actually reproduced the
>> linker error? Has anyone else? If not, I suspect the problem may be caused
>> by a broken build of libfontconfig on the reporter's system. My first
>> suggestion then would be to ask the reporter to restart from a clean install
>> and try again.
>
> The reporter is me :)
>
> The error is not reproduced on clean MXE with "make pango".
>
> This error happened when I built all the packages from scratch with
> tools/build-pkg.lua . It took more than 24 hours to complete, that is
> why I have not reproduced it yet. All build-pkg does is calling "make
> xxx" where xxx is one of packages. It builds packages one by one. So
> the issue is related to the order in which packages are built by
> build-pkg and Makefile itself.
>
> To reproduce the issue apply the following patch to clean MXE:
>
> diff --git a/tools/build-pkg.lua b/tools/build-pkg.lua
> index e0434e1..3e9deab 100755
> --- a/tools/build-pkg.lua
> +++ b/tools/build-pkg.lua
> @@ -340,6 +340,9 @@ local function buildPackages(pkgs, pkg2deps)
>              local msg = 'Package %s depends on broken %s'
>              log(msg:format(pkg, brokenDep(pkg)))
>          end
> +        if pkg == 'pango' then
> +            os.exit()
> +        end
>      end
>      return unbroken
>  end
>
> and run
>
>     lua tools/build-pkg.lua
>
> It would build all packages until pango is tried to build. Then you
> are expected to get broken pango. Of course, you need lua installed
> for this.
>
> I'll try to do it myself soon.

I have reproduced this bug on another machine (Jessie) with clean MXE

Log: https://gist.github.com/starius/26d279601204a12dc4a2
Archive with MXE tree: http://elric.ga/files/mxe-pango-broken.tar.gz
To reproduce the bug, download the archive and run "make pango"


>
>> Regarding your suggestion to build native gdk-pixbuf, I don't think we
>> should do that. In order to build it we must first build all its
>> dependencies (and instruct the dependent packages to find them, as they
>> would be installed in a nonstandard place). So that means patching many
>> packages, with patches that we'd have to maintain forever, and that haven't
>> any actual purpose except to avoid installing gdk-pixbuf, which many people
>> will have installed already. It's so much cleaner and easier to just add the
>> needed requirement. I understand the desire to keep the list of requirements
>> to a minimum, but if a package is indeed required, it is a requirement.
>> There are already other requirements that are only needed by specific sets
>> of packages, for example I don't think that every package needs python, ruby
>> and cmake. If you wish, you may add a note to the list of requirements that
>> gdk-pixbuf is only needed if you want to build gtk packages.
>>
>> Gerardo
>>
>> 2015-08-30 17:07 GMT+02:00 Nagaev Boris <address@hidden>:
>>>
>>> On Sat, Aug 29, 2015 at 12:10 AM, Nagaev Boris <address@hidden> wrote:
>>> > On Fri, Aug 28, 2015 at 9:57 PM, Gerardo Ballabio
>>> > <address@hidden> wrote:
>>> >> 2015-08-28 9:18 GMT+02:00 Nagaev Boris <address@hidden>:
>>> >>> I will help you with git and github
>>> >>
>>> >> Thank you very much.
>>> >>
>>> >>> It worth finding all these packages and adding them to MXE
>>> >> requirements
>>> >>
>>> >> The Debian devel package for gdk-pixbuf is libgdk-pixbuf2.0-dev. I'd
>>> >> suggest
>>> >> that you install that to begin with. Hope that's enough, if not let me
>>> >> know.
>>> >
>>> > I have installed libgdk-pixbuf2.0-dev and gtk3 and gtkmm3 build now!
>>> >
>>> > The following remains to be done:
>>> >
>>> >  * find names of similar package (gdk-pixbuf) in other distributions
>>> > (Fedora, FreeBSD, Frugalware, Gentoo, Mac OS X, openSUSE) and add it
>>> > to corresponding sections of index.html
>>> >  * alternative way of getting native gdk-pixbuf is building it in
>>> > src/gdk-pixbuf.mk . Is it possible to build "own" native gdk-pixbuf
>>> > and use it in gtk3? It would be better to avoid new external
>>> > dependency (Debian package libgdk-pixbuf2.0-dev)
>>> >  * split this patch to: (1) pango, (2) glib and (3) gtk3/gtkmm3. For
>>> > (1) and (2) more details about goals are needed
>>> >  * make sure pango is fixed. See linking error
>>> > https://github.com/mxe/mxe/issues/804
>>> >
>>> >>
>>> >> Gerardo
>>> >>
>>> >
>>>
>>> Gerardo,
>>>
>>> there is another pull request [1] adding gtk3 to MXE, Can you revise
>>> it? Your files differs from the files from the pull request. Probably
>>> better package can be produced by incorporating your changes and
>>> changes from the pull request.
>>>
>>> And the problem of unstable build of pango remains [2]. Probably
>>> whether pango builds successfully depends on which packages are
>>> already built. If this is the case, these packages should be
>>> identified and added to pango's dependencies.
>>>
>>> [1] https://github.com/mxe/mxe/pull/795
>>> [2] https://github.com/mxe/mxe/issues/804
>>>
>>>
>>>
>>> --
>>>
>>>
>>> Best regards,
>>> Boris Nagaev
>>
>>
>
>
>
> --
>
>
> Best regards,
> Boris Nagaev



-- 


Best regards,
Boris Nagaev