Squashed 'third_party/google-glog/' content from commit 5d46e1b

Change-Id: I4d7d0b2759aa01069e6990109ae0f5f9897512c4
git-subtree-dir: third_party/google-glog
git-subtree-split: 5d46e1bcfc92bf06a9ca3b3f1c5bb1dc024d9ecd
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 0000000..08b6590
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+set -eu
+
+autoreconf -i