--- third_party/systemlibs/syslibs_configure.bzl.orig	2019-07-11 15:43:32.713320000 +0100
+++ third_party/systemlibs/syslibs_configure.bzl	2019-07-11 15:43:54.448882000 +0100
@@ -21,6 +21,7 @@
     "curl",
     "cython",
     "double_conversion",
+    "enum34_archive",
     "flatbuffers",
     "gast_archive",
     "gif_archive",