From https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239814
(hsn@sanatana:pts/2):myports/qtractor% make 14:02 /!\ qtractor-0.9.9: Makefile errors /!\ /bin/sh: Syntax error: "(" unexpected *** Error code 2 Stop. make: stopped in /home/hsn/gitports/myports/qtractor