1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/bmake/unit-tests/suff.mk b/contrib/bmake/unit-tests/suff.mk
new file mode 100644
index 000000000000..53f6eb82b224
--- /dev/null
+++ b/contrib/bmake/unit-tests/suff.mk
@@ -0,0 +1,41 @@
+# $NetBSD: suff.mk,v 1.3 2025/01/14 21:39:25 rillig Exp $
+#
+# Demonstrate suffix rules and dependency resolution.
+
+
+# Circumvent the file system cache.
+.if !make(init) && !make(step*)
+all:
+	@${MAKE} -f ${MAKEFILE} init
+	@${MAKE} -f ${MAKEFILE} step1
+.endif
+
+
+.if make(init)
+init:
+.  if ${.PARSEDIR:tA} != ${.CURDIR:tA}
+${:U}!=		cd ${MAKEFILE:H} && cp a*.mk ${.CURDIR}
+.  endif
+.endif
+
+
+.if make(step1)
+step1: .PHONY edge-case.to everything
+
+.MAKEFLAGS: -dsv
+
+.SUFFIXES: .from .to
+
+.from.to:
+	: Making ${.TARGET} from ${.ALLSRC}.
+
+# When making this target, ${.ARCHIVE} is undefined, but there's no warning.
+# expect: Var_Parse: ${.ARCHIVE}.additional (eval)
+edge-case.to: ${.PREFIX}${.ARCHIVE}.additional
+
+edge-case.from edge-case.additional:
+	: Making ${.TARGET} out of nothing.
+
+everything: .PHONY a*.mk
+	: Making ${.TARGET} from ${.ALLSRC}.
+.endif