1 files changed, 25 insertions, 0 deletions
diff --git a/src/crypto/sha1/boring.go b/src/crypto/sha1/boring.go
new file mode 100644
index 0000000..b5786d1
--- /dev/null
+++ b/src/crypto/sha1/boring.go
@@ -0,0 +1,25 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Extra indirection here so that when building go_bootstrap
+// cmd/internal/boring is not even imported, so that we don't
+// have to maintain changes to cmd/dist's deps graph.
+
+//go:build !cmd_go_bootstrap && cgo
+// +build !cmd_go_bootstrap,cgo
+
+package sha1
+
+import (
+	"crypto/internal/boring"
+	"hash"
+)
+
+const boringEnabled = boring.Enabled
+
+func boringNewSHA1() hash.Hash { return boring.NewSHA1() }
+
+func boringUnreachable() { boring.Unreachable() }
+
+func boringSHA1(p []byte) [20]byte { return boring.SHA1(p) }