This is a port of Library MPEG2 0.5.1 to MSDOS/DJGPP.

1.:     DJGPP specific changes.
        =======================

      - This port has been configured to be build in the "0build" directory.
      - The port has been configured and compiled on WinXP SP3, Win98SE and
        MSDOS 6.22 and DOSLFN v0.41f.  There is absolute no guarantee that
        this may be possible with any other DOS-like OS.  Due to the use of
        long file names it will not be possible to configure and compile
        without LFN support.
      - The reading/writing stream is switched into O_BINARY mode.  If the
        stream is connected to stdin/stdout/TTY, then Ctrl-C and Ctrl-Break
        are re-enabled so the user can interrupt the program.
      - Because the name of the two libraries: libmpeg2 and libmpeg2convert
        map both to the same SFN, the original LFN have been renamed to SFN
        like this:
          libmpeg2convert -> libmpg2convert
        To avoid any inconveniences, a new version of libnames.tab with that
        mapping has been included in this port.  It is stored in the "djgpp"
        directory and needs to be moved into the "lib" directory of the DJGPP
        installation.  With this new version of libnames.tab the linker will
        know how to map the expected LFN to the corresponding SFN.
      - This version of the port has been compiled using gcc346 and bnu2351b.

        As usual, all djgpp specific files (config.bat, diffs, readme files,
        etc.) are located in the "djgpp" directory.


        Please *read* the docs stored in /contrib/libmpeg2.051/doc.


2.:     Installing the binary package.
        ==============================

2.1.:   Copy the binary distribution into the top DJGPP installation directory,
        just unzip it preserving the directory structure running *ONE* of the
        following commands:
          unzip32 lmpg051b.zip      or
          djtarx lmpg051b.zip       or
          pkunzip -d lmpg051b.zip



3.:     Building the binaries from sources.
        ===================================

3.1.:   Create a temporary directory and copy the source package into the
        directory and just unzip it preserving the directory structure running
        *ONE* of the following commands:
          unzip32 lmpg051s.zip      or
          djtarx lmpg051s.zip       or
          pkunzip -d lmpg051s.zip

3.2.:   To build the binaries you will need the following binary packages:
          djdev205.zip (or a later but NOT a prior version)
          bsh4253b.zip (or a later but NOT a prior version)
          gccNNNb.zip, gppNNN.zip, bnuNNNb.zip, makNNNb.zip, filNNNb.zip,
          shlNNNb.zip, txtNNNb.zip, txiNNNb.zip, grepNNNb.zip, sedNNNb.zip.

        If you want to run the check you will need also:
          gwkNNNb.zip

        NNN represents the latest version number of the binary packages. All
        this packages can be found in the /v2gnu directory of any
        ftp.delorie.com mirror.
        You will need bsh4253b.zip or later and *NOT* a prior version or
        the build will fail.  The same applies to djdev205.zip.

3.3.:   If for some reason you want to reconfigure the package cd into the top
        srcdir (libmpeg2.051) and run the following commands:
          del djgpp\config.cache
          make clean
          djgpp\config

        Please note that you *MUST* delete the config.cache file in the djgpp
        subdir or you will not really reconfigure the sources because the
        configuration informations will be read from the cache file instead
        of being newly computed.
        To build the programs in a directory other than where the sources are,
        you must add the parameter that specifies the source directory,
        e.g:
          x:\src\gnu\libmpeg2.051\djgpp\config x:/src/gnu/libmpeg2.051

        Lets assume you want to build the binaries in a directory placed on a
        different drive (z:\build in this case) from where the sources are,
        then you will run the following commands:
          z:
          md \build
          cd \build
          x:\src\gnu\libmpeg2.051\djgpp\config x:/src/gnu/libmpeg2.051

        The order of the options and the srcdir option does not matter.  You
        *MUST* use forward slashes to specify the source directory.

        The batch file will set same environment variables, make MSDOS specific
        modifications to the Makefile.in's and supply all other needed options
        to the configure script.

3.4.:   To compile the package run from the top srcdir the command:
          make

3.5.:   Now you can run the tests if you like.  From the top srcdir run the
        command:
          make check

        Actually only one test will be run and the other two will be skipped.

3.6.:   To install the binaries, header, library, catalogs, and man pages
        run the following command from the top srcdir:
          make install

        This will install the products into your DJGPP installation tree given
        by the default prefix "/dev/env/DJDIR".  If you prefer to install them
        into some other directory you will have to set prefix to the appropiate
        value:
          make install prefix=z:/some/other/place



        Send mpeg2dec specific bug reports to libmpeg2-devel after having
        subscribed to the list at <http://libmpeg2.sourceforge.net/lists.html>
        Send suggestions and bug reports concerning the DJGPP port to
        comp.os.msdos.djgpp or <djgpp@delorie.com>.


Enjoy.

        Guerrero, Juan Manuel <juan.guerrero@gmx.de>
