make: add nuke target for C commands and libs

Also, clean *.out files for commands written in Go.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4535051

src/Make.ccmd

@@ -18,6 +18,9 @@ CLEANFILES+=y.tab.[ch]
 clean:
 	rm -f *.$(HOST_O) $(TARG) $(CLEANFILES)
 
+nuke: clean
+	rm -f "$(GOBIN)/$(TARG)"
+
 ifneq ($(NOINSTALL),1)
 install: $(QUOTED_GOBIN)/$(TARG)
 endif

src/Make.clib

@@ -26,6 +26,8 @@ CLEANFILES+=y.tab.[ch] y.output a.out $(LIB)
 clean:
 	rm -f *.$(HOST_O) $(CLEANFILES)
 
+nuke: clean
+	rm -f "$(GOROOT)/lib/$(LIB)"
 
 y.tab.h: $(YFILES)
 	LANG=C LANGUAGE="en_US.UTF8" bison -v -y $(HOST_YFLAGS) $(YFILES)

src/Make.cmd

@@ -27,7 +27,7 @@ install: $(TARGDIR)/$(TARG)
 $(TARGDIR)/$(TARG): $(TARG)
 	mkdir -p $(TARGDIR) && cp -f $(TARG) $(TARGDIR)
 
-CLEANFILES+=$(TARG) _test _testmain.go
+CLEANFILES+=$(TARG) _test _testmain.go test.out build.out
 
 nuke: clean
 	rm -f $(TARGDIR)/$(TARG)