patch 9.0.1336: functions without arguments are not always declared properly Commit: https://github.com/vim/vim/commit/a23a11b5bf03454b71fdb5deac0d5f641e222160 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Tue Feb 21 14:27:41 2023 +0000 patch 9.0.1336: functions without arguments are not always declared properly Problem: Functions without arguments are not always declared properly. Solution: Use "(void)" instead of "()". (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/12031)

# The most simplistic Makefile

xxd: xxd.c
	$(CC) $(CFLAGS) $(LDFLAGS) -DUNIX -o xxd xxd.c

clean:
	rm -f xxd xxd.o