dvisvgm needs rebuild to support ghostscript 10

[Karl Berry]

Sergio - lacking any other solution, maybe the simplest way for you to
be able to proceed with your work is to build a patched dvisvgm from the
TL source.  https://tug.org/texinfohtml/tlbuild.html#Build-one-package

Patch the dvisvgm source as needed after downloading, before doing the
build, naturally. -k

P.S. There's a typo "buil" in a comment on that web page, which will be
fixed in due time.