fix eglibc-2.16 manual build

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Message-Id: <20121022133228.GA16536@sig21.net>
Patchwork-Id: 193156

 #!/bin/sh

 set -e

 printf "Running autoconf...\n"

 autoconf -Wall --force

 printf "Done. You may now run:\n    ./configure\n"