Make Nix builds work

1 files changed, 43 insertions, 0 deletions

diff --git a/vendor/golang.org/x/sys/cpu/parse.go b/vendor/golang.org/x/sys/cpu/parse.go
new file mode 100644
index 0000000..762b63d
--- /dev/null
+++ b/vendor/golang.org/x/sys/cpu/parse.go
@@ -0,0 +1,43 @@
+// Copyright 2022 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.
+
+package cpu
+
+import "strconv"
+
+// parseRelease parses a dot-separated version number. It follows the semver
+// syntax, but allows the minor and patch versions to be elided.
+//
+// This is a copy of the Go runtime's parseRelease from
+// https://golang.org/cl/209597.
+func parseRelease(rel string) (major, minor, patch int, ok bool) {
+        // Strip anything after a dash or plus.
+        for i := 0; i < len(rel); i++ {
+                if rel[i] == '-' || rel[i] == '+' {
+                        rel = rel[:i]
+                        break
+                }
+        }
+
+        next := func() (int, bool) {
+                for i := 0; i < len(rel); i++ {
+                        if rel[i] == '.' {
+                                ver, err := strconv.Atoi(rel[:i])
+                                rel = rel[i+1:]
+                                return ver, err == nil
+                        }
+                }
+                ver, err := strconv.Atoi(rel)
+                rel = ""
+                return ver, err == nil
+        }
+        if major, ok = next(); !ok || rel == "" {
+                return
+        }
+        if minor, ok = next(); !ok || rel == "" {
+                return
+        }
+        patch, ok = next()
+        return
+}