Re: [Gimp-user] MacOS


On Mon, May 18, 2020 at 6:37 PM Tres Finocchiaro <tres finocchiaro gmail com>

I see some new patches arriving which suggests there's some new activity
on the Mac port (SDK 10.9 -> 10.10), etc.  I'll jump on the developer list
as suggested although from what I'm seeing there's -- what appears to be --
progress so it'll be more for the purposes of familiarizing with the
build system in the event my assistance is needed.

The patches you see are only in a single test branch which I created for
someone who also wants to get familiarized with the build system, just like
you. This being in a branch of the official repo (not master yet though)
allows to get real builds on the CI service (which is otherwise a paid

You are still very welcome to help, and I can even make you a test branch
if you want as well (or you can work on the same test branch with this
other contributor). If you come on the IRC channel (#gimp on,
you can also discuss with this new contributor (nickname "Benitoite", and
"Jehan" for me). The more people the better. This brings redundancy if ever
any of us needs to get a bit off-record for a bit (which is perfectly ok,
people have lives) so that we don't end up again in the same situation with
no package maintainer for months.


- Tres Finocchiaro gmail com

On Sat, Apr 25, 2020 at 3:14 PM Jehan Pagès <jehan marmottard gmail com>


On Fri, Apr 24, 2020 at 10:09 PM Tres Finocchiaro <
tres finocchiaro gmail com> wrote:

Thanks for the info.  I'll comb the CI in the next week looking for the
download.  Circle-CI recently changed it's retention policy so if I need to
re-fire a build, I'll jump on IRC and introduce myself.

Note, I only use IRC as-needed since it requires an always-on connection
or cralwing service to read backlogs, but I'm not afraid to jump on.

Also, I'm a pretty big fan of Gimp.  Switched to it exclusively for
raster about 12 years ago, I'm also the one that whistleblew Sourceforge on
their BS, getting this junkware removed:

Anyway, I'll start diving into the CI this next week and post any
high-level progress here.  I realize I'm on the user's list (and that's OK)
but I'll try to be kind as to not overwhelm it with dev-related convo. :D

Didn't realize this was the user list. Maybe we can continue the
discussion in the developer list instead (to subscribe, if not already: and/or IRC
of course.



- Tres Finocchiaro gmail com

On Fri, Apr 24, 2020 at 3:52 PM Jehan Pagès <jehan marmottard gmail com>


On Fri, Apr 24, 2020 at 9:19 PM Tres Finocchiaro <
tres finocchiaro gmail com> wrote:

he had issues with the new "hardening" rules of macOS

Although I'm very familiar with notarization and stapling
<>, the hardened runtimes
require a much deeper understanding of C++, so my efforts would likely be

Normally our builds now are notarized, signed and whatnot (I understand
there are several security layers?) nowadays. We use the Apple ID of GNOME
(contact Neil McGovern). If needed at some point, we can put you in contact.

I see the build system is 10.9+ (notarization requires a minimum of
10.9, so this is good) however in my experience, the dependencies are a
nightmare when targeting older macOSs.  My strategy has been to chain a
bunch of custom steps
<> although
I'm curious how this is done using Gimp.  At a glance, it appears (perhaps)
the dependency listing is simpler.  I see a macos-specific gtk script, that
must be doing a lot of the work.

Yeah it's based on:
Alex had a GIMP-specific fork:
But it's all written in the README, so you probably read it already.

As for the minimum system, initially we were targetting 10.10+ (we try
to not support OS even unsupported by their developers, i.e. here Apple.
And actually even 10.10 is not supported anymore by now, according to
Wikipedia). Cf.
But (if I recall) Alex was saying that supporting 10.9 was not much
more difficult so we kept as-is at least until things ended up impossible
(in which case we'd bump up the requirement).

There is also the fact that each time we drop support for an older
Windows or macOS, we get a lot of hate from people. Of course this doesn't
stop us but still. Let's say that if we have no reason to break support
(i.e. doesn't make our life harder), why do it? 🙂
This being said, if our macOS contributor(s) consider that we have to
drop support of old version X or Y of macOS for whatever good reason, we'll
just do it. The doers are basically maintainers of their own part. 😉

I spot some similarities, such as upstream bugs with otool tools
<>, leveraging a 3rd
party dmg creator <> (I've
used app-dmg instead) but at a glance, the build system appears to be
completely automated including signing and notarizing.

I think it is, since I can see steps "Importing signing certificate", "Creating
DMG package" and "Notarizing DMG package" in the CI.

If testing the installer is the next steps before publishing, I can
offer that by fetching the URL from the CI logs.

I indeed know the DMG is made available on CircleCI and can be
downloaded in the "Artifacts" tab of builds. Maybe you'd need an account to
see this, no idea. Do you see the DMG link?

I'm only a casual Gimp user though, so I'd be weary of passing a build
as good on instinct alone.  Do you have a QC spreadsheet or is it more of a
best-effort basis?

To be clear, we have no idea. If this is not in the repository, it
means that either Alex had not documented it (yet?) or it was just in his
head. He has been the only one working on GIMP on macOS for like the last 2
years (and before him, we had another contributor who was also alone for
many years; it seems we never manage to get more than 1 macOS dev at a
time! 😕).

I guess you could start creating a QC steps howto and contribute it to
the repo once you are done. :-)

Sorry to not be of much help, but this is just how much we know nothing

Alex's notes are stellar btw.

Nice to read. He did put a lot of time and effort on this. We are
extremely thankful to him (and to any contributor for that matter!).

Note, I use Gimp on macOS Catalina Developer Beta so I'll know right
away if the app or a particular feature is blocked and I'm more likely to
have stricter (beta) hardening as Apple makes changes to the OS.

Cool. :-)



- Tres Finocchiaro gmail com

On Fri, Apr 24, 2020 at 2:55 PM Jehan Pagès <
jehan marmottard gmail com> wrote:

Hi Tres,

On Fri, Apr 24, 2020 at 7:34 PM Tres Finocchiaro <
tres finocchiaro gmail com> wrote:


I'm the macOS packager for LMMS.  I might be able to help out in his
absence.  LMMS is written in Qt, so the dependency stack is much
different than Gimp which is Gtk, but if there's a documented build process
via MacPorts or Homebrew, I can take a swing at it.

I know there are non-official MacPorts and Homebrew because it's
written on our website. So these can be good references indeed.

Ideally we want the build scripts to be public and the build itself
to also be public (not happen on someone's computer for obvious reasons).
This is why Alex (our macOS contributor) has done a lot of work on the
build repository:
It would be nice if continuing work were to happen on this same

As for the build itself, it was happening on some CI service called
CircleCI (because macOS builds can be done there, unlike the GNOME Gitlab
CI machines). Builds are there:

Note: you'll notice that there are builds for GIMP 2.10.18 there,
which was from last time Alex was working on it. We don't really know the
state and in particular if these builds done 2 months ago work well and
safely, since none of us (but Alex) even has an Apple machine so we cannot
test and won't recklessly make public completely untested DMG packages.

Last we heard from Alex, he had issues with the new "hardening" rules
of macOS. Basically it made it impossible to run a debugger (lldb), which
is what GIMP tries to do to self-debug when it crashes or encounter
critical errors (a debug feature introduced in GIMP 2.10).
I'm not sure he actually fixed it before going off-radar. If he
didn't and the solution is too complicated, a possibility is to not care
about this self-debugging feature of course. It's annoying if it doesn't
work (because it makes reporting/fixing bugs easier), but it is better to
have a package without the feature than none obviously. :-)

In any case, we will definitely welcome the help. Feel free to look
at the scripts and propose patches/merge requests. I'm not sure if an
access is needed to CircleCI project to see the build details (artifacts,
logs and whatnot). Maybe just connecting with a github account is enough.
If not, we'll try to figure this out.

Oh and last thing, if you have questions, the #gimp IRC channel on is a good place where you can find most developers.




- Tres Finocchiaro gmail com

On Fri, Apr 24, 2020 at 1:11 PM Jehan Pagès via gimp-user-list <
gimp-user-list gnome org> wrote:


On Fri, Apr 24, 2020 at 8:16 AM Maurizio Loreti via gimp-user-list <
gimp-user-list gnome org> wrote:

Any foresight for an implementation of GIMP 2.10.18 for MacOS?
[I mean
official, not MacPorts (that uses XQuartz) nor Partha's].

Isn't it you who already asked at least twice the same thing? The
answer is
still the same as we told you several times already. Our (unique!)
contributor has not been available for like more than a month. And
to be
fair, I don't care as much about the macOS version of GIMP as I am
about this contributor and hoping he (and his family) is still fine
as we
get no news.

Since you knew already about the situation, a bit of compassion
would not
be a bad thing.

If GIMP has problems with MacOS, what are these problems?

Isn't *no contributor* enough of a problem by itself? The problem
is that
nobody seem to care enough to help this package happen (only enough
**ask** for it apparently). We have called for contributors so many
over the years (and again recently, so much there has even been a
specialized mac-news website who relayed the call a few weeks ago!).
This contributor could be you if you want to help packaging!
The current version of scripts are there:

There are only 3 possible outcomes:
1/ This contributor finally comes back and he continues *alone* 😢
to do
all the mac packaging.
2/ Other people finally show they care by contributing.
3/ A mix of 1/ and 2/ which is the best outcome!

In none of these scenarios just asking without contributing helps
in any
Thanks for either helping or understanding. 🙂


Maurizio Loreti  --  Maurizio Loreti gmail com
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