PATCH: generic-build-script

[Charles Wilson]

Dario Alcocer wrote:

> The attached patch adds the following to the generic-build-script:
> 
>  * automatically determines the correct decompression option for tar
>    from the original source tarball
> 
>  * 'mkdirs' removes the .build, .inst, and .sinst directories, to
>    increase the likelihood that 'mkpatch' will generate a 'clean' patch
>    (i.e. no extraneous files.)
> 
>  * added COPYING to the list of files copied to the binary package by
>    the 'install' option
> 
>  * 'strip' option avoids returning an error if no DLLs or EXEs are found
>    to contain symbolic debugging information

Fine by me.

--Chuck