Download patch
ref: 5168bc0b8701ce9f48427e4bceb36097e424c60f parent: 78758aa22afd4f923b8641acff0e4cb19b2820a2 author: Sigrid Haflínudóttir <ftrvxmtrx@gmail.com> date: Tue Dec 31 23:25:16 EST 2019
gen.sh: print an error if can't figure out class name