Commit
594e2f992ac3f1bab85ab7c590c7dcb26201b311
by Pau Espin Pedrolconfigure.ac: Add arpa/inet.h to AC_CHECK_HEADERS
We use arpa/inet.h in several places in the code, so it's good to look
up for presence even if it's only to debug toolchain compatibility.
Change-Id: Ib2d1fb3efb1dcb429b511698691249c257e00720
