1# $NetBSD: suff-rebuild.mk,v 1.2 2020/10/18 16:12:39 rillig Exp $ 2# 3# Demonstrates what happens to transformation rules (called inference rules 4# by POSIX) when all suffixes are deleted. 5 6all: suff-rebuild-example 7 8.SUFFIXES: 9 10.SUFFIXES: .a .b .c 11 12suff-rebuild-example.a: 13 : from nothing to a 14 15.a.b: 16 : from a to b 17.b.c: 18 : from b to c 19.c: 20 : from c to nothing 21 22# XXX: At a quick glance, the code in SuffScanTargets looks as if it were 23# possible to delete the suffixes in the middle of the makefile, add back 24# the suffixes from before, and have the transformation rules preserved. 25# 26# As of 2020-09-25, uncommenting the following line results in the error 27# message "don't know how to make suff-rebuild-example" though. 28# 29#.SUFFIXES: 30 31# Add the suffixes back. It should not matter that the order of the suffixes 32# is different from before. 33.SUFFIXES: .c .b .a 34