Hi Trevor, I can confirm the same behaviour on Mac OS X 10.11.6.
Running struss semi-equivalent dtruss seems like a nightmare on the mac - all sorts of system restrictions prevent it. Not being a Mac developer I am clueless as to how one runs a simple trace on the mac. Anybody who knows Mac development out there? Andrew _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel