diff --git a/cc/x86_darwin_host.go b/cc/x86_darwin_host.go
index bd164e3..f3cf1c9 100644
--- a/cc/x86_darwin_host.go
+++ b/cc/x86_darwin_host.go
@@ -84,6 +84,12 @@
 		"10.10",
 		"10.11",
 	}
+
+	darwinAvailableLibraries = addPrefix([]string{
+		"c",
+		"m",
+		"pthread",
+	}, "-l")
 )
 
 const (
@@ -258,6 +264,10 @@
 	return "${darwinSystemCppLdflags}"
 }
 
+func (t *toolchainDarwin) AvailableLibraries() []string {
+	return darwinAvailableLibraries
+}
+
 var toolchainDarwinX86Singleton Toolchain = &toolchainDarwinX86{}
 var toolchainDarwinX8664Singleton Toolchain = &toolchainDarwinX8664{}