Makefile revision 105907 
1# $FreeBSD: head/tools/build/make_check/Makefile 105907 2002-10-25 06:17:44Z jmallett $
2
3# Test for broken LHS expansion.
4# This *must* case make(1) to detect a recursive variable, and fail as such.
5.if make(lhs_expn)
6FOO=		${BAR}
7BAR${NIL}=	${FOO}
8FOO${BAR}=	${FOO}
9.endif
10
11DATA1=	helllo
12DATA2:=	${DATA1}
13DATA3=	${DATA2:S/ll/rr/g}
14DATA4:=	${DATA2:S/ll/rr/g}
15DATA2?=	allo
16DATA5:= ${DATA2:S/ll/ii/g} ${DATA1:S/ll/rr/g}
17DATA2=	yello
18DATA1:=	${DATA5:S/l/r/g}
19NIL=
20
21all:
22	@echo "Running test variables"
23	@echo 1:${DATA1} 2:${DATA2} 3:${DATA3} 4:${DATA4} 5:${DATA5} | \
24		diff -u ${.CURDIR}/regress.variables.out - || ${MAKE} failure
25	@echo "PASS: Test variables detected no regression, output matches."
26	@echo "Running test targets"
27	@${MAKE} double || ${MAKE} failure
28	@echo "PASS: Test targets detected no regression."
29	@echo "Running test sysvmatch"
30	@${MAKE} sysvmatch || ${MAKE} failure
31	@echo "PASS: Test sysvmatch detected no regression."
32	@echo "Running test lhs_expn"
33	@! ${MAKE} lhs_expn && true || ${MAKE} failure
34	@echo "PASS: Test lhs_expn detected no regression."
35
36.if make(double)
37# Doubly-defined targets.  make(1) will warn, but use the "right" one.  If it
38# switches to using the "non-right" one, it breaks things worse than a little
39# regression test.
40double:
41	@true
42
43double:
44	@false
45.endif
46
47.if make(sysvmatch)
48# Some versions of FreeBSD make(1) do not handle a nil LHS in sysvsubst.
49sysvmatch:
50	@echo EMPTY ${NIL:=foo} LHS | \
51		diff -u ${.CURDIR}/regress.sysvmatch.out - || false
52.endif
53
54# A bogus target for the lhs_expn test;  If this is reached, then the make(1)
55# program has not errored out because of the recursion caused by not expanding
56# the left-hand-side's embedded variables above.
57lhs_expn:
58	@true
59
60failure:
61	@echo "FAIL: Test failed: regression detected.  See above."
62	@false
63