FWIW, there is a workaround that has the desired effect (at least in my context); it's attached in case somebody finds it useful.
2015-08-19 10:58 GMT+02:00 Christoph Pfister <christophpfis...@gmail.com>: > 2015-08-19 2:23 GMT+02:00 Norbert Preining <prein...@logic.at>: > <snip> >> Could you please: >> * check whether the mwe *plus* loading calc.sty works in older >> version? > > Yes, that combination works in the older version. > >> * check whether your real world example works when loading calc.sty? > > No, it also fails with "\pgfmath@dimen@ ...men@@ #1=0.0pt\relax \pgfmath@". > >> Thanks >> >> Norbert > > Christoph
workaround.tex
Description: TeX document
