Makefile.am (check-go-tool): Only chmod check-go-dir if it exists.

	* Makefile.am (check-go-tool): Only chmod check-go-dir if it
	exists.
	* Makefile.in: Regenerate.

From-SVN: r271669

gotools/ChangeLog

+2019-05-27  Ian Lance Taylor  <iant@golang.org>
+
+	* Makefile.am (check-go-tool): Only chmod check-go-dir if it
+	exists.
+	* Makefile.in: Regenerate.
+
 2019-02-28  Ian Lance Taylor  <iant@golang.org>
 
 	PR go/89406

gotools/Makefile.am

@@ -207,7 +207,7 @@ ECHO_ENV = PATH=`echo $(abs_builddir):$${PATH} | sed 's,::*,:,g;s,^:*,,;s,:*$$,,
 
 # check-go-tool runs `go test cmd/go` in our environment.
 check-go-tool: go$(EXEEXT) $(noinst_PROGRAMS) check-head check-gccgo check-gcc
-	-chmod -R u+w check-go-dir
+	if test -d check-go-dir; then chmod -R u+w check-go-dir; fi
 	rm -rf check-go-dir cmd_go-testlog
 	$(MKDIR_P) check-go-dir/src/cmd/go
 	cp $(cmdsrcdir)/go/*.go check-go-dir/src/cmd/go/

gotools/Makefile.in

@@ -878,7 +878,7 @@ mostlyclean-local:
 
 # check-go-tool runs `go test cmd/go` in our environment.
 @NATIVE_TRUE@check-go-tool: go$(EXEEXT) $(noinst_PROGRAMS) check-head check-gccgo check-gcc
-@NATIVE_TRUE@	-chmod -R u+w check-go-dir
+@NATIVE_TRUE@	if test -d check-go-dir; then chmod -R u+w check-go-dir; fi
 @NATIVE_TRUE@	rm -rf check-go-dir cmd_go-testlog
 @NATIVE_TRUE@	$(MKDIR_P) check-go-dir/src/cmd/go
 @NATIVE_TRUE@	cp $(cmdsrcdir)/go/*.go check-go-dir/src/cmd/go/