* Philip Race: > There is more code in the newer version but not 4 times as much ! > Harfbuzz now requires c++11 features (-std=c++11) > Possibly the C++ compiler you are using (you don't mention platform) is > slower in this mode.
It's GCC 8 on Debian buster, which defaults to C++14. And it's possible to write slow-to-compile C++ in all language modes. Is the Harfbuzz build parallelized?
