Arch Linux User Repository

Hi, I'm tackling the problem with the add-ons installation, where the installer can't write to /usr/local/MATLAB/R2022b. I think we should avoid manual chmods or chowns, as it would be easy to mess up with the permissions, so I created a matlab group with rwx permissions, which owns the tree starting at /usr/local/MATLAB/R2022b. The PKGBUILD sets up the correct permissions, so after installing MATLAB, you should just add yourself to that group, re-login and then you should be able to install add-ons. So far I'm able to start the installer, download the add-on archive, but when I get to Performing post-installation tasks. This may take a few minutes..., an error occurs, and the installer logs End - Unsuccessful Exception: java.lang.InterruptedException without further information.

If anyone wants to help me resolve this issue, here is the repo: https://github.com/Rubo3/matlab-aur/tree/addons.

I updated the PKGBUILD to MATLAB R2022b. Sorry it took so long. Here are the main changes:

• The dependencies have been updated according to namcap (thanks @sukanka), and are now managed via the matlab-meta meta package, now it's really easy to play around with them, as you don't have to rebuild the entire MATLAB package (thanks @bbaserdem). I still don't know the exact dependencies needed by MATLAB, as I don't use all its toolkits and whatnots. As always, please tell me if you find something.
• The MATLAB installer now outputs its logs in install.log, under the same directory of the PKGBUILD, so that you can check whether something went wrong even if it didn't fail (e.g. when you need a new license or installation key because the major version changed).
• I moved python-matlabengine to its own repo, which is built from upstream and works for the latest MATLAB versions. Currently it supports Python 3.9 and 3.10. If you have other needs, you can find the installation instructions here. Since the source files are still provided in your local MATLAB installation under $_instdir/extern/engines/python, building it and packaging it here was really just a convenience. I would like to know how many users of this PKGBUILD really need to spoof their Python version, so that we can reason about putting back that extra logic in the other PKGBUILD.
• I also removed the Mesa workaround and the optional compilers, are they still needed?

READ THE README FILE IN THE REPO. NO AUR HELPERS SUPPORTED. ONLY ARCHLINUX AS OS IS SUPPORTED. YOU SHOULD BE BUILDING THIS PACKAGE USING MAKEPKG, NOTHING ELSE WILL BE SUPPORTED. Please only post issues here AFTER you followed the README.md. located at the root of this repo: https://aur.archlinux.org/cgit/aur.git/tree/README.md?h=matlab Due to a lot of comments; my spam filter is removing AUR notifications which keeps me from responding timely to issues in packaging, please don't post if you don't do some troubleshooting yourself. If your skill level is not up to troubleshooting (or following simple instructions as laid out by the readme), just install matlab locally, without using this package.

• This PKGBUILD is NOT a minimal installation; as it has (hard) dependencies to gcc8 to force MATLAB to use system libraries. While generally not required; this PKGBUILD is trying to make MATLAB work with the system rather than with the mathworks-provided binaries. Currently it also does the python integration so that jupyter can be used with it.
• This will only work with 2020b version; and will not work with earlier (or later) versions.
• This PKGBUILD DOES NOT DOWNLOAD MATLAB FOR YOU. The EULA prevents redistribution of the software. Read the README.md file contained in the PKGBUILD repo. This is essentially a script to integrate an existing matlab installer with your archlinux system; it does NOT come with any software from Mathworks. You most likely cannot build this package using an AUR helper; you NEED to manually provide files; and to get the files you need a valid MATLAB licence. The process of fetching the files is described in detail in the README.md in the repo. (You can use any valid credentials to install the package using this PKGBUILD; including a licence file that does not match the machine; but you will need to reactivate matlab by using activate_matlab.sh with root privileges.)
• Current users; please help me test and trim the dependencies list, and submit your personal fixes for issues if you have them so they can be added to the PKGBUILD. (Cuda related contributions; if needed would be good as I don't have nvidia GPU's to test compatibility.)
• To use jupyter with matlab; you also need jupyter-matlab_kernel(-git).

Thanks for all the great work! Sadly I am stuck with the same log as this comment. I have downloaded the latest PKGBUILD 'pkgrel=5', 'pkgver=9.12.0.1903524' and Matlab <version>9.12.0.1927505</version> which sets pkgrel and pkgver correctly. Still building gets stuck at the non-existent folder ${srcdir}/build/extern/engines/python. Do you have any guidance for me?

Thanks for the update, partial install works now.

@sukanka thank you, I left a comment on your pull request and I have enabled the Issues tab. I don't know why it was disabled.

@Rubo, I ran namcap for the built package to check dependencies, and here is the output. https://fars.ee/53NB

Dependencies should be updated according to the output. Some are in depends and some should go into optdepends (for example java-runtime) and some should be removed(libselinux)

BTW, I cannot open an issue in that github repo.

@sukanka I'm glad to hear you built it successfully. As mentioned in this comment, there is a repo here. I guess the choice of links being grey near black text is a little unfortunate...

@Rubo, thanks for your reply, I now use the latest PKGBUILD, still, the problem is

==> Starting pkgver()...
==> Removing existing $pkgdir/ directory...
==> Starting build()...
  -> Running original installer...
  -> Building Python API...
/home/sukanka/Downloads/matlab/PKGBUILD: line 160: cd: /tmp/makepkg/matlab/src/build/extern/engines/python: No such file or directory
==> ERROR: A failure occurred in build().
    Aborting...

But I notice another thing that may help. My matlab version is different from yours.

<version>9.12.0.1884302</version>
<release>R2022a</release>

I'm now redownloading 9.12.0.1927505 Update: I build this version successfully.

BTW, maybe you can setup a github repo for discussing this problem.

@sukanka sure, I re-package it every time I edit the PKGBUILD, to see if it works, and the current one works following the standard procedure, with or without the install.sh script. Maybe you meant /tmp/makepkg/matlab/src/build/extern/, since the problematic directory is ${srcdir}/build/extern/engines/python?

I bumped the release of the PKGBUILD to 4. Nothing has changed since the previous one, just pkgrel, please update it so that we are all on the same track.

With the Python MATLAB engine, it seems to me two problems can occur:

1. Right after -> Building Python API.... If you are doing a partial installation, when the MATLAB off-line installer is ran at line 156, ${srcdir}/build is empty, so surely ${srcdir}/build/extern/engines/python can't be there! I'm thinking of splitting the building and the packaging of the Python engine from MATLAB itself. Please, let me know what do you think.
2. Right after -> Packaging Python API.... If you are using an old PKGBUILD, where you have pkgname=('python-matlabengine' 'matlab') instead of pkgname=('matlab' 'python-matlabengine'), the package_python-matlabengine function is ran after package_matlab. As you can see at line 274 of the current PKGBUILD, package_matlab moves ${srcdir}/build into ${pkgdir}/${instdir}. Then, at line 192, package_python-matlabengine changes the current directory to ${srcdir}/build/extern/engines/python, and an error is thrown, because ${srcdir}/build isn't there anymore, now it's in ${pkgdir}/${instdir}! That was a problem in one of the previous PKGBUILDs, which I fixed, and that's why I added the comment at lines 5-6.

I hope those are the only two problems, but please let me know if that's not the case.

@Rubo, did you build the package yourself? Could you please have a look at the downloaded files? I notice in /tmp/makepkg/matlab/src/matlab/extern/, there is only include/, no engines/python. I used the latest PKGBUILD, and matlab R2022a downloaded from matlab installer.

@tornado99 are you using the latest PKGBUILD? Are you doing a partial installation? Please check the comments below.

-> Building Python API... /var/tmp/pamac-build-[user]/matlab/PKGBUILD: line 162: cd: /var/tmp/pamac-build-[user]/matlab/src/build/extern/engines/python: No such file or directory ==> ERROR: A failure occurred in build().