shithub: libvpx

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configure: update script headers

The libvpx build system was influenced by the clever design of the
FFmpeg configure script. Say so in the script header, and provide a
little introduction.

Change-Id: I4d134c77f9032d1dde72b852b444e98676b85326

--- a/build/make/configure.sh

+++ b/build/make/configure.sh

@@ -1,13 +1,13 @@

 #!/bin/bash

 ##

-##  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.

+##  configure.sh

 ##

-##  Use of this source code is governed by a BSD-style license and patent

-##  grant that can be found in the LICENSE file in the root of the source

-##  tree. All contributing project authors may be found in the AUTHORS

-##  file in the root of the source tree.

+##  This script is sourced by the main configure script and contains

+##  utility functions and other common bits that aren't strictly libvpx

+##  related.

 ##

-

+##  This build system is based in part on the FFmpeg configure script.

+##

 #

--- a/configure

+++ b/configure

@@ -1,11 +1,15 @@

 #!/bin/bash

 ##

-##  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.

+##  configure

 ##

-##  Use of this source code is governed by a BSD-style license and patent

-##  grant that can be found in the LICENSE file in the root of the source

-##  tree. All contributing project authors may be found in the AUTHORS

-##  file in the root of the source tree.

+##  This script is the front-end to the build system. It provides a similar

+##  interface to standard configure scripts with some extra bits for dealing

+##  with toolchains that differ from the standard POSIX interface and

+##  for extracting subsets of the source tree. In theory, reusable parts

+##  of this script were intended to live in build/make/configure.sh,

+##  but in practice, the line is pretty blurry.

+##

+##  This build system is based in part on the FFmpeg configure script.

 ##

 #source_path="`dirname \"$0\"`"