1
2.SECONDEXPANSION:
3.PHONY: bye_%_%.1 bye_%_%.2 bye_%_%.3 bye_%_%.4
4all: bye.x
5bye.x: %.x: $$(wordlist 1, 99, %_%_%.1 %_%_%.2) $$(wordlist 1, 99, %_%_%.3 %_%_%.4); $(info $@ from $^)