1
 2.PHONY: all
 3all: ;@:
 4
 5# "special" target
 6.BOGUS: ;@:
 7
 8# Check various forms of suffix rule
 9.SUFFIXES: .q
10.q: ;@:
11.c.o: ;@:
12
13# Not a suffix rule
14.x.z: ;@:
15
16# Verify included files aren't built / don't fail
17
18include badfile
19include goodfile
20
21submake: ; $(MAKE) all
22always: ; +echo always
23goodfile: ; touch goodfile