configure.in: Use kernel style silent rules starting with automake 1.11

Use the silent rules when they are available. Using make V=1 or a
special configure option the silent rules can be disabled.
1 file changed
tree: 9a89c20c16079a54c001e8cc31dff24b8e05123d
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/