diff --git a/src/cmd/dist/util_gccgo.go b/src/cmd/dist/util_gccgo.go
index f680e7b649..14ac70bca5 100644
--- a/src/cmd/dist/util_gccgo.go
+++ b/src/cmd/dist/util_gccgo.go
@@ -6,4 +6,15 @@
 
 package main
 
-func cansse2() bool { return false }
+/*
+int supports_sse2() {
+#if defined(__i386__) || defined(__x86_64__)
+	return __builtin_cpu_supports("sse2");
+#else
+	return 0;
+#endif
+}
+*/
+import "C"
+
+func cansse2() bool { return C.supports_sse2() != 0 }