Hi All I created the symbolic link as suggested by Bruce and Luis and still got the error message optional > unable to locate library 'libzint' in my text editor. I use TeXworks. However, I thought I would try running from the Terminal app and it worked. It found libzint and output the pdf with both barcodes and the qrcode. I have no idea why it works in the Terminal and not TexWorks, I'm guessing I have a path issue which I need to investigate. Notes 1) My machine is a mac-mini-M1 with macos Monterey and I'm running the latest ConTeXt version 2) Bruce noted that my Homebrew was installed in a non-standard location so I checked on the Hombrew website and it is installed in opt/homebrew for Apple Silicon i.e the M1 chip. Maybe Bruce's homebrew was installed on an earlier version. Thanks to Luis and Bruce for their suggestions. Best Wishes Keith McKay On 10/04/2022 22:26, Bruce Horrocks wrote:

Hi Keith,

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On 10 Apr 2022, at 14:49, Keith McKay via ntg-context wrote:

Hi All

I have been struggling today trying to setup and use the Barcode module zint in ConTeXt and failed. I have followed the instructions on the wiki (https://wiki.contextgarden.net/Barcodes ) but with some changes as follows. Which maybe why I failed.

1) I downloaded Zint using Homebrew since I'm using macOS, and installed it according to the instructions.

2) Since I'm using LMTX I looked for the file libzint.dylib and found it in /opt/homebrew/Cellar/zint/2.10.0/lib . This is different from the path given on the wiki. The directory contained three files, two of which were aliases, libzint.2.10.dylib and libzint.dylib, and an exe file libzint.2.10.0.0.dylib You have Hombrew installed in a non-standard location. Mine is in /usr/local/Cellar with the executables linked into /usr/local/bin.

But, assuming other Homebrew commands work when run from Terminal then you might still be okay.

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3) I created the path $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex/zint and copied libzint.2.10.0.0.dylib into but replaced dylib with 'so' as suggested on the wiki instructions. So I basically added lib/luametatex/zint to texmf-osx-64/bin . "Yes" to creating the path but "no" to copying. Create a symbolic link instead.

So, in Terminal:

$ cd $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex/zint

# In my case I used the following: $ ln -s /usr/local/Cellar/zint/2.10.0/lib/libzint.dylib libzint.so

# For you with Homebrew in a different location, try: $ ln -s /opt/homebrew/Cellar/zint/2.10.0/lib/libzint.dylib libzint.so

Then steps 4 and 5 as below. I ran the MWE below: the ISBN worked, the ISBNX didn't, the QR code did. This is on Monterey.

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4) I ran mtxrun --generate to update the database.

5) I ran the MWE below but no barcode appeared. The console output shows:

modules > using user prefixed file 'libs-imp-zint' modules > 'zint' is loaded

however further down the output it gives:

optional > unable to locate library 'libzint'

I have tried renaming libzint2.10.0.0.so to libzint.so, but still no barcode. Is their something I am missing? Tips or hints appreciated. Best Wishes Keith McKay

%%%%%%%%%%%%%% MWE %%%%%%%% \usemodule[zint] \starttext \barcode[alternative=isbn,text=9783865419026,width=4cm] \barcode[alternative=isbnx, text=9783865419026, width=4cm] \barcode[alternative=qrcode, text={https://wiki.contextgarden.net}, width=3cm] \stoptext — Bruce Horrocks Hampshire, UK

Hi! I have issues to get this to work With latest LMTX installed on my Monterey intel MacBook Air and Zint version 2.11 This appears in my log entry … optional > using library '/Users/janneman/CTX/tex/texmf-osx-64/bin/lib/luametatex/zint/libzint.so' zint > something went wrong: invalid result vector zint > something went wrong: invalid result vector zint > something went wrong: invalid result vector …

13 apr. 2022 kl. 00:47 skrev Bruce Horrocks via ntg-context :

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On 12 Apr 2022, at 21:04, Keith McKay wrote:

Hi All I created the symbolic link as suggested by Bruce and Luis and still got the error message

optional > unable to locate library 'libzint'

in my text editor. I use TeXworks. However, I thought I would try running from the Terminal app and it worked. It found libzint and output the pdf with both barcodes and the qrcode. I have no idea why it works in the Terminal and not TexWorks, I'm guessing I have a path issue which I need to investigate.

Could be a path issue - or some other environment variable. This link should help you decide what needs to go where: https://unix.stackexchange.com/questions/71253/what-should-shouldnt-go-in-zs...

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Notes 1) My machine is a mac-mini-M1 with macos Monterey and I'm running the latest ConTeXt version 2) Bruce noted that my Homebrew was installed in a non-standard location so I checked on the Hombrew website and it is installed in opt/homebrew for Apple Silicon i.e the M1 chip. Maybe Bruce's homebrew was installed on an earlier version.

Ah, I'm on an Intel Mac which still uses the old approach. Apologies for the red herring.

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Thanks to Luis and Bruce for their suggestions. Best Wishes Keith McKay

— Bruce Horrocks Hampshire, UK

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On Mon May 30, 2022 at 8:19 PM CEST, Jan-Erik Hägglöf via ntg-context wrote:

With latest LMTX installed on my Monterey intel MacBook Air and Zint version 2.11

optional > using library '/Users/janneman/CTX/tex/texmf-osx-64/bin/lib/luametatex/zint/libzint.so' zint > something went wrong: invalid result vector zint > something went wrong: invalid result vector zint > something went wrong: invalid result vector …

Luametatex is still built against zint 2.10, which is on the binary level incompatible with 2.11, so you should try 2.10 in the meantime. Ultimately there are three possibilities for the long run: 1) Everyone sticks with 2.10 (which may be problematic since binaries for this "old" version may gradually cease to be available). 2) Hans updates luametatex to zint 2.11, which would mean that a lot of people would need to update their zint installations now (and possibly in the future for every update). This is what was done last time with the update to 2.10. 3) luametatex gains compatibility with 2.10 *and* 2.11. Not sure what is the best way to proceed, since 3) is the messiest implementation wise, but nicest for the users. Michal Vlasák PS: Previously I also suggested option 4: The optional libraries for selected platforms would be built on the context garden and available for download (perhaps incorporated into the not yet existing module manager?). Building the some of the small libraries is easy, but for the advanced ones one would have to also build transitive dependencies and this gets out of hand quickly with e.g. curl (and in this case the returns are diminishing - curl AFAIK is so stable, that such breakage like with zint shouldn't ever happen). For what it's worth, this is my repository which allows building some of the simple libs on Linux (with the possibility to cross compile to Windows). It will probably also work on Mac. The versions of the libraries are pinned e.g. zint is locked to 2.10, so at least that should work, but I didn't follow closely updates to others in luametatex. https://github.com/vlasakm/context-optional-libraries