diff --git a/unum/vendor/golang.org/x/sys/unix/gccgo_linux_sparc64.go b/unum/vendor/golang.org/x/sys/unix/gccgo_linux_sparc64.go
new file mode 100644
index 0000000..5633269
--- /dev/null
+++ b/unum/vendor/golang.org/x/sys/unix/gccgo_linux_sparc64.go
@@ -0,0 +1,20 @@
+// Copyright 2016 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.
+
+// +build gccgo,linux,sparc64
+
+package unix
+
+import "syscall"
+
+//extern sysconf
+func realSysconf(name int) int64
+
+func sysconf(name int) (n int64, err syscall.Errno) {
+	r := realSysconf(name)
+	if r < 0 {
+		return 0, syscall.GetErrno()
+	}
+	return r, 0
+}