File go-1.5-build-dont-reinstall-stdlibs.patch of Package go1.9

Index: go/src/cmd/go/internal/work/build.go
===================================================================
--- go.orig/src/cmd/go/internal/work/build.go
+++ go/src/cmd/go/internal/work/build.go
@@ -203,6 +203,8 @@ func init() {
 // addBuildFlags adds the flags common to the build, clean, get,
 // install, list, run, and test commands.
 func AddBuildFlags(cmd *base.Command) {
+	// OPENSUSE                                        
+	cmd.Flag.BoolVar(&cfg.BuildS, "s", false, "")
 	cmd.Flag.BoolVar(&cfg.BuildA, "a", false, "")
 	cmd.Flag.BoolVar(&cfg.BuildN, "n", false, "")
 	cmd.Flag.IntVar(&cfg.BuildP, "p", cfg.BuildP, "")
@@ -1571,6 +1573,11 @@ func (b *Builder) linkShared(a *Action)
 
 // BuildInstallFunc is the action for installing a single package or executable.
 func BuildInstallFunc(b *Builder, a *Action) (err error) {
+	// OPENSUSE                                        
+	if cfg.BuildS && (a.Package.Standard || a.Package.ImportPath == "cmd/cgo") {
+		return nil
+	}
+
 	defer func() {
 		if err != nil && err != errPrintedOutput {
 			err = fmt.Errorf("go install %s: %v", a.Package.ImportPath, err)
Index: go/src/cmd/go/internal/cfg/cfg.go
===================================================================
--- go.orig/src/cmd/go/internal/cfg/cfg.go
+++ go/src/cmd/go/internal/cfg/cfg.go
@@ -18,6 +18,7 @@ import (
 
 // These are general "build flags" used by build and other commands.
 var (
+	BuildS                 bool               // OPENSUSE -s (for packaging only)
 	BuildA                 bool   // -a flag
 	BuildBuildmode         string // -buildmode flag
 	BuildContext           = build.Default