1 files changed, 34 insertions, 0 deletions
diff --git a/usr.bin/make/unit-tests/modmatch.mk b/usr.bin/make/unit-tests/modmatch.mk
new file mode 100644
index 0000000..4519928
--- /dev/null
+++ b/usr.bin/make/unit-tests/modmatch.mk
@@ -0,0 +1,34 @@
+
+X=a b c d e
+
+.for x in $X
+LIB${x:tu}=/tmp/lib$x.a
+.endfor
+
+X_LIBS= ${LIBA} ${LIBD} ${LIBE}
+
+LIB?=a
+
+var = head
+res = no
+.if !empty(var:M${:Uhead\:tail:C/:.*//})
+res = OK
+.endif
+
+all:	show-libs check-cclass
+
+show-libs:
+	@for x in $X; do ${.MAKE} -f ${MAKEFILE} show LIB=$$x; done
+	@echo "Mscanner=${res}"
+
+show:
+	@echo 'LIB=${LIB} X_LIBS:M$${LIB$${LIB:tu}} is "${X_LIBS:M${LIB${LIB:tu}}}"'
+	@echo 'LIB=${LIB} X_LIBS:M*/lib$${LIB}.a is "${X_LIBS:M*/lib${LIB}.a}"'
+	@echo 'LIB=${LIB} X_LIBS:M*/lib$${LIB}.a:tu is "${X_LIBS:M*/lib${LIB}.a:tu}"'
+
+LIST= One Two Three Four five six seven
+
+check-cclass:
+	@echo Upper=${LIST:M[A-Z]*}
+	@echo Lower=${LIST:M[^A-Z]*}
+	@echo nose=${LIST:M[^s]*[ex]}