From 0aad4a7f96851b06b7407e975d2cd23190e57ab9 Mon Sep 17 00:00:00 2001
From: jmallett <jmallett@FreeBSD.org>
Date: Wed, 19 Jun 2002 18:57:04 +0000
Subject: Add a test for what was fixed in revision 1.27 and 1.28 of make(1)'s
 var.c, expansion of embedded variables in the left-hand-side of an assignment
 expression, using the simplest case - hiding recursion using nil-expanded
 variables.

---
 tools/build/make_check/Makefile        | 17 +++++++++++++++++
 tools/regression/usr.bin/make/Makefile | 17 +++++++++++++++++
 2 files changed, 34 insertions(+)

(limited to 'tools')

diff --git a/tools/build/make_check/Makefile b/tools/build/make_check/Makefile
index 14708b3..f92febc 100644
--- a/tools/build/make_check/Makefile
+++ b/tools/build/make_check/Makefile
@@ -1,5 +1,13 @@
 # $FreeBSD$
 
+# Test for broken LHS expansion.
+# This *must* case make(1) to detect a recursive variable, and fail as such.
+.if make(lhs_expn)
+FOO=		${BAR}
+BAR${NIL}=	${FOO}
+FOO${BAR}=	${FOO}
+.endif
+
 DATA1=	helllo
 DATA2:=	${DATA1}
 DATA3=	${DATA2:S/ll/rr/g}
@@ -21,6 +29,9 @@ all:
 	@echo "Running test sysvmatch"
 	@${MAKE} sysvmatch || ${MAKE} failure
 	@echo "PASS: Test sysvmatch detected no regression."
+	@echo "Running test lhs_expn"
+	@${MAKE} lhs_expn || ${MAKE} failure
+	@echo "PASS: Test lhs_expn detected no regression."
 
 # Doubly-defined targets.  NetBSD make(1) will warn, ours will silently use the
 # ``right'' one.
@@ -35,6 +46,12 @@ sysvmatch:
 	@echo EMPTY ${NIL:=foo} LHS | \
 		diff -u ${.CURDIR}/regress.sysvmatch.out - || false
 
+# A bogus target for the lhs_expn test;  If this is reached, then the make(1)
+# program has not errored out because of the recursion caused by not expanding
+# the left-hand-side's embedded variables above.
+lhs_expn:
+	@false
+
 failure:
 	@echo "FAIL: Test failed: regression detected.  See above."
 	@false
diff --git a/tools/regression/usr.bin/make/Makefile b/tools/regression/usr.bin/make/Makefile
index 14708b3..f92febc 100644
--- a/tools/regression/usr.bin/make/Makefile
+++ b/tools/regression/usr.bin/make/Makefile
@@ -1,5 +1,13 @@
 # $FreeBSD$
 
+# Test for broken LHS expansion.
+# This *must* case make(1) to detect a recursive variable, and fail as such.
+.if make(lhs_expn)
+FOO=		${BAR}
+BAR${NIL}=	${FOO}
+FOO${BAR}=	${FOO}
+.endif
+
 DATA1=	helllo
 DATA2:=	${DATA1}
 DATA3=	${DATA2:S/ll/rr/g}
@@ -21,6 +29,9 @@ all:
 	@echo "Running test sysvmatch"
 	@${MAKE} sysvmatch || ${MAKE} failure
 	@echo "PASS: Test sysvmatch detected no regression."
+	@echo "Running test lhs_expn"
+	@${MAKE} lhs_expn || ${MAKE} failure
+	@echo "PASS: Test lhs_expn detected no regression."
 
 # Doubly-defined targets.  NetBSD make(1) will warn, ours will silently use the
 # ``right'' one.
@@ -35,6 +46,12 @@ sysvmatch:
 	@echo EMPTY ${NIL:=foo} LHS | \
 		diff -u ${.CURDIR}/regress.sysvmatch.out - || false
 
+# A bogus target for the lhs_expn test;  If this is reached, then the make(1)
+# program has not errored out because of the recursion caused by not expanding
+# the left-hand-side's embedded variables above.
+lhs_expn:
+	@false
+
 failure:
 	@echo "FAIL: Test failed: regression detected.  See above."
 	@false
-- 
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