Re: Proposal: Reduce *-devel packages dependencies on other unneeded *-devel packages

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I've submitted https://fedoraproject.org/wiki/Changes/Stop_pulling_dependencies_for_static_libraries to improve the situation.

On Sun, Aug 12, 2018 at 9:57 PM Igor Gnatenko <ignatenkobrain@xxxxxxxxxxxxxxxxx> wrote:
On Sun, Aug 12, 2018 at 9:19 PM Robert Marcano <robert@xxxxxxxxxxxxxxxxx> wrote:
On 08/12/2018 02:07 PM, JD wrote:
> What about dependencies of dependencies? Have you thought of that?

Sorry, I don't get the question, these are devel packages, not runtime
libraries, these dependencies of dependencies are already pulled if I
install gtk3, but code that only links with GTK3, only needs gtk3-devel
to be built, the others devel packages are only needed if my code links
to them directly.

You intentionally (or not) didn't reply to my comment on this. Just look into gtk+-3.0.pc:
Requires: gdk-3.0 atk >= 2.15.1 cairo >= 1.14.0 cairo-gobject >= 1.14.0 gdk-pixbuf-2.0 >= 2.30.0 gio-2.0 >= 2.49.4
Requires.private: atk atk-bridge-2.0 wayland-client >= 1.9.91 wayland-protocols >= 1.12 xkbcommon >= 0.2.0 wayland-cursor >= 1.9.91 wayland-egl  epoxy >= 1.0 pangoft2 gio-unix-2.0 >= 2.49.4


All those wayland and xkb stuff is needed only if you link to gtk statically. But since we don't ship static library, no one can use it anyway → those requirements are useless.

The problem here is that they are auto-generated and I've proposed to improve that.
 
>
> On 08/12/2018 11:07 AM, Robert Marcano wrote:
>> On 08/12/2018 12:46 PM, Rex Dieter wrote:
>>> Robert Marcano wrote:
>>>
>>>> And thinking about it, a lot *-devel packages interdependencies should
>>>> be Recommends and not Requires
>>>
>>> You keep saying this, I'd like to see some evidence to support that.
>>
>> Example below. why do I need all these dependencies, when I only link
>> directly with gtk3 widgets? some of those are only there because gtk
>> links against them and maybe I will link with them too, but some are
>> so low level that doesn't make sense.
>>
>> I should be able, for example, to build a very small container image
>> that only contains the devel packages I really link with, to use on my
>> builders (using install_weak_deps=False or any other solution).
>>
>> But anyways, these are only ideas to help reduce the chance of people
>> overlinking. Maybe I am wrong on liking less implicit dependencies
>> when installing devel packages.
>>
>>> # dnf install gtk3-devel
>>> Last metadata expiration check: 0:42:52 ago on Sun 12 Aug 2018
>>> 12:11:09 PM -04.
>>> Dependencies resolved.
>>> ========================================================================================================
>>>
>>>  Package                        Arch
>>> Version                              Repository      Size
>>> ========================================================================================================
>>>
>>> Installing:
>>>  gtk3-devel                     x86_64
>>> 3.22.30-1.fc28                       fedora         4.4 M
>>> Installing dependencies:
>>>  at-spi2-atk-devel              x86_64
>>> 2.26.2-1.fc28                        fedora          18 k
>>>  at-spi2-core-devel             x86_64
>>> 2.28.0-1.fc28                        fedora         142 k
>>>  atk-devel                      x86_64
>>> 2.28.1-1.fc28                        fedora         191 k
>>>  bzip2-devel                    x86_64
>>> 1.0.6-26.fc28                        fedora         223 k
>>>  cairo-devel                    x86_64
>>> 1.15.12-2.fc28                       updates        271 k
>>>  cairo-gobject-devel            x86_64
>>> 1.15.12-2.fc28                       updates         24 k
>>>  cmake-filesystem               x86_64
>>> 3.11.2-1.fc28                        updates         38 k
>>>  dbus-devel                     x86_64
>>> 1:1.12.10-1.fc28                     updates         65 k
>>>  expat-devel                    x86_64
>>> 2.2.5-3.fc28                         fedora          54 k
>>>  fontconfig-devel               x86_64
>>> 2.13.0-4.fc28                        updates        144 k
>>>  freetype-devel                 x86_64
>>> 2.8-10.fc28                          fedora         453 k
>>>  fribidi-devel                  x86_64
>>> 1.0.2-1.fc28                         updates         30 k
>>>  gdk-pixbuf2-devel              x86_64
>>> 2.36.12-1.fc28                       fedora         221 k
>>>  graphite2-devel                x86_64
>>> 1.3.10-5.fc28                        fedora          44 k
>>>  harfbuzz-devel                 x86_64
>>> 1.7.5-3.fc28                         fedora         180 k
>>>  libX11-devel                   x86_64
>>> 1.6.5-7.fc28                         fedora         985 k
>>>  libXau-devel                   x86_64
>>> 1.0.8-11.fc28                        fedora          19 k
>>>  libXcomposite-devel            x86_64
>>> 0.4.4-12.fc28                        fedora          21 k
>>>  libXcursor-devel               x86_64
>>> 1.1.15-1.fc28                        fedora          28 k
>>>  libXdamage-devel               x86_64
>>> 1.1.4-12.fc28                        fedora          14 k
>>>  libXext-devel                  x86_64
>>> 1.3.3-8.fc28                         fedora          79 k
>>>  libXfixes-devel                x86_64
>>> 5.0.3-5.fc28                         fedora          18 k
>>>  libXft-devel                   x86_64
>>> 2.3.2-8.fc28                         fedora          24 k
>>>  libXi-devel                    x86_64
>>> 1.7.9-6.fc28                         fedora         110 k
>>>  libXinerama-devel              x86_64
>>> 1.1.3-10.fc28                        fedora          18 k
>>>  libXrandr-devel                x86_64
>>> 1.5.1-5.fc28                         fedora          25 k
>>>  libXrender-devel               x86_64
>>> 0.9.10-5.fc28                        fedora          21 k
>>>  libXxf86vm-devel               x86_64
>>> 1.1.4-7.fc28                         fedora          23 k
>>>  libdrm-devel                   x86_64
>>> 2.4.93-1.fc28                        updates        142 k
>>>  libepoxy-devel                 x86_64
>>> 1.5.2-1.fc28                         updates        141 k
>>>  libglvnd-core-devel            x86_64
>>> 1:1.0.1-0.7.git5baa1e5.fc28          updates         23 k
>>>  libglvnd-devel                 x86_64
>>> 1:1.0.1-0.7.git5baa1e5.fc28          updates         15 k
>>>  libglvnd-opengl                x86_64
>>> 1:1.0.1-0.7.git5baa1e5.fc28          updates         47 k
>>>  libicu-devel                   x86_64
>>> 60.2-2.fc28                          fedora         920 k
>>>  libpng-devel                   x86_64
>>> 2:1.6.34-6.fc28                      updates        326 k
>>>  libuuid-devel                  x86_64
>>> 2.32.1-1.fc28                        updates         91 k
>>>  libxcb-devel                   x86_64
>>> 1.13-1.fc28                          fedora         1.1 M
>>>  libxkbcommon-devel             x86_64
>>> 0.8.0-5.fc28                         updates         59 k
>>>  mesa-libEGL-devel              x86_64
>>> 18.0.5-3.fc28                        updates         47 k
>>>  mesa-libGL-devel               x86_64
>>> 18.0.5-3.fc28                        updates        173 k
>>>  pango-devel                    x86_64
>>> 1.42.3-1.fc28                        updates        320 k
>>>  pixman-devel                   x86_64
>>> 0.34.0-8.fc28                        updates         19 k
>>>  wayland-devel                  x86_64
>>> 1.15.0-1.fc28                        fedora         145 k
>>>  wayland-protocols-devel        noarch
>>> 1.14-1.fc28                          updates         69 k
>>>  xorg-x11-proto-devel           noarch
>>> 2018.4-1.fc28                        fedora         282 k
>>>
>>> Transaction Summary
>>> ========================================================================================================
>>>
>>> Install  46 Packages
>>
>>
>>>
>>> -- Rex
>>> _______________________________________________
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>>>
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>
>
>
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--

-Igor Gnatenko

--

-Igor Gnatenko

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