Issue after upgrading to macOS Ventura

[netw0rkf10w]

Issue after upgrading to macOS Ventura

[netw0rkf10w]

@mgieseki I see, thanks. I've just tried converting EPS to DVI using

# create test.ps from test.dvi
dvips test
# convert test.ps to test.svg
dvisvgm --eps test.ps

and it worked. Does this mean that my installation of dvisvgm is fully working now?

---

For those future users who will come across this discussion and who don't want to install Homebrew, there is an alternative solution: just install the following package that already includes mutool: Ghostscript-10.01.1-Extras.pkg.

[mgieseki]

Unfortunately, I can't really help here because I don't have access to a Mac. It seems, dvisvgm can't find or doesn't get access to the Ghostscript library any longer. Maybe it's now located in a different folder or there are some security measures in place that prevent dvisvgm from accessing the library. I suggest to contact the MacTeX team to have a look at this.

[netw0rkf10w]

@mgieseki Thanks. The Ghostscript library is present and is at the same place at before: /usr/local/share/ghostscript/10.00.0/lib/libgs.dylib.10.00. I tried passing the lib directly to dvisvgm but nothing has changed:

$ dvisvgm --libgs=/usr/local/share/ghostscript/10.00.0/lib/libgs.dylib.10.00 --pdf test.pdf
ERROR: can't retrieve number of pages from file test.pdf

The output of dvisvgm -h is as follows:

$ dvisvgm -h
dvisvgm 3.0.3

This program converts DVI files, as created by TeX/LaTeX, as well as
EPS and PDF files to the XML-based scalable vector graphics format SVG.

Usage: dvisvgm [options] dvifile
       dvisvgm --eps [options] epsfile
       dvisvgm --pdf [options] pdffile

Input options:
  -p, --page=ranges             choose page(s) to convert [1]
  -m, --fontmap=filenames       evaluate (additional) font map files
  -E, --eps                     convert EPS file to SVG
  -P, --pdf                     convert PDF file to SVG
      --stdin                   read input file from stdin

SVG output options:
  -b, --bbox=size               set size of bounding box [min]
  -B, --bitmap-format=fmt       set format used to embed PS/EPS bitmaps [jpeg]
  -j, --clipjoin                compute intersection of clipping paths
      --colornames              prefer color names to RGB values if possible
      --comments                add comments with additional information
      --embed-bitmaps           prevent references to external bitmap files
  -f, --font-format=format      set file format of embedded fonts [svg]
      --grad-overlap            create overlapping color gradient segments
      --grad-segments=number    number of color gradient segments per row [20]
      --grad-simplify=delta     reduce level of detail for small segments [0.05]
  -L, --linkmark=style          select how to mark hyperlinked areas [box]
  -O, --optimize[=modules]      perform several SVG optimizations [all]
  -o, --output=pattern          set name pattern of output files
  -d, --precision=number        set number of decimal points (0-6) [0]
  -R, --relative                create relative path commands
  -s, --stdout                  write SVG output to stdout
      --tmpdir[=path]           set/print the directory for temporary files
  -n, --no-fonts[=variant]      draw glyphs by using path elements [0]
      --no-merge                don't merge adjacent text elements
      --no-styles               don't use CSS styles to reference fonts
  -z, --zip[=level]             create compressed .svgz file [9]

SVG transformations:
  -r, --rotate=angle            rotate page content clockwise [0]
  -c, --scale=sx[,sy]           scale page content
  -t, --translate=tx[,ty]       shift page content
  -T, --transform=commands      transform page content
  -Z, --zoom=factor             zoom page content [1]

Processing options:
  -C, --cache[=dir]             set/print path of cache directory
  -e, --exact-bbox              compute exact glyph bounding boxes
      --keep                    keep temporary files
      --libgs=filename          set name of Ghostscript shared library
  -M, --mag=factor              magnification of Metafont output [4]
      --no-mktexmf              don't try to create missing fonts
  -S, --no-specials[=prefixes]  don't process [selected] specials
  -H, --page-hashes[=params]    activate usage of page hashes [xxh64]
  -a, --trace-all[=retrace]     trace all glyphs of bitmap fonts [no]

Message options:
      --color                   colorize messages
  -h, --help[=mode]             print this summary of options and exit [0]
  -l, --list-specials           print supported special sets and exit
      --progress[=delay]        enable progress indicator [0.5]
  -v, --verbosity=level         set verbosity level (0-7) [7]
  -V, --version[=extended]      print version and exit [no]

Copyright (C) 2005-2023 Martin Gieseking <[email protected]>

I also tried re-installing Ghostscript from here: https://www.tug.org/mactex/morepackages.html but that didn't help either.

I wonder whether dvisvgm has other dependencies that Ghostscript...

[mgieseki]

What's the output of dvisvgm -V1? Is Ghostscript listed there? If not, dvisvgm can't find or access the Ghostscript library for some reason. Since the upgrade to Ventura broke the functionality and even --libgs doesn't work now, I presume that macOS prevents using the library. This really needs to be investigated by a Mac developer.

[netw0rkf10w]

Indeed, dvisvgm -V1 doesn't list Ghostscript:

$ dvisvgm -V1
dvisvgm 3.0.3 (x86_64-apple-darwin18.7.0)
-----------------------------------------
brotli:   1.0.9
clipper:  6.2.1
freetype: 2.13.0
kpathsea: 6.3.5
potrace:  1.16
xxhash:   0.8.1
zlib:     1.2.13

I guess I should report a bug to the MacTeX team then... In the mean time I'll try to build dvisvgm from source.
Thanks!

[netw0rkf10w]

I tried using the dvisvgm binary from the backup of my computer before the upgrade (actually it was not un upgrade but an installation from scratch of Ventura), and it turns out that dvisvgm -V1 gives the same results:

$ dvisvgm -V1
dvisvgm 3.0.3 (x86_64-apple-darwin18.7.0)
-----------------------------------------
brotli:   1.0.9
clipper:  6.2.1
freetype: 2.13.0
kpathsea: 6.3.5
potrace:  1.16
xxhash:   0.8.1
zlib:     1.2.13

Yet this same binary was working before.

In my backup I also have TeXLive 2019, and its dvisvgm -V1 gives

$ dvisvgm -V1
dvisvgm 2.6.3
-------------
brotli:    1.0.7
clipper:   6.2.1
fontforge: 20160721
freetype:  2.9.1
kpathsea:  6.3.1
potrace:   1.15
xxhash:    0.6.5
zlib:      1.2.11

These lead me to believe that, the fact that dvisvgm -V1 doesn't show Ghostscript is an expected behaviour, and thus the issue seem to lie elsewhere.

[netw0rkf10w]

Also, when running the 2019 dvisvgm, I got a different error message:

$ dvisvgm_2.6.3 --pdf test.pdf 
ERROR: Ghostscript is required to process PDF files

which seems to indicate that the 2023 version does have access to Ghostscript.

[mgieseki]

which seems to indicate that the 2023 version does have access to Ghostscript.

No, there were many changes in dvisvgm 3 regarding the processing of PDF files. Hence, the error messages might differ as well. If dvisvgm -V1 doesn't list Ghostscript, dvisvgm definitely has no access to the Ghostscript library.

[netw0rkf10w]

@mgieseki I see, thanks. Trying to install Ghostscript via Homebrew. The latest version is 10.01.1 and is not supported by dvisvgm:

$ dvisvgm --pdf test.pdf
ERROR: To process PDF files, either Ghostscript < 10.1 or mutool is required.
The installed Ghostscript version 10.1.1 isn't supported.

(Not sure why it was dented as 10.1.1 while it's only 10.01.1).

Trying to downgrade to 10.00.0 now...

[muzimuzhi]

(Not sure why it was dented as 10.1.1 while it's only 10.01.1).

see #226

[netw0rkf10w]

@muzimuzhi Thanks a lot! I've installed mutool and now every thing works like a charm!!! Even dvisvgm --pdf works without any warning (which is something I don't really understand, because according to #226, mutool should involve only DVI -> SVG).

[mgieseki]

(which is something I don't really understand, because according to #226, mutool should involve only DVI -> SVG)

The mutool-based PDF handler was introduced with dvisvgm 3.0 because GS replaced its PDF interpreter with a new one that can't be used as the previous one. You can find some information about this in the manual page. PDF files can be referenced from within DVI files so that mutool is used there as well but not exclusively. It's main purpose is to process PDF files.

[netw0rkf10w]

@mgieseki Thanks for the clarification. I guess that means Ghostscript is no longer needed as a dependency, starting from dvisvgm 3.0?

[mgieseki]

Ghostscript is still required for processing PostScript code, e.g. if you want to convert EPS files or DVI files that contain PS fragments as created by PSTricks for example. This functionality is not available if you build or run dvisvgm without access to the Ghostscript library.

[mgieseki]

Yes, it seems it's fully working now. In this case, Ghostscript should also be shown in the output of dvisvgm -V1.

[netw0rkf10w]

Oh, indeed:

$ dvisvgm -V1
dvisvgm 3.0.3 (x86_64-apple-darwin18.7.0)
-----------------------------------------
brotli:      1.0.9
clipper:     6.2.1
freetype:    2.13.0
Ghostscript: 10.1.1
kpathsea:    6.3.5
mutool:      1.22.0
potrace:     1.16
xxhash:      0.8.1
zlib:        1.2.13

I'm not really sure what happened, but I'm glad it's working :D

[mgieseki]

Great, glad to hear you finally got it working again.