This is a port of Libmpeg2 0.5.1 to MSDOS/DJGPP. 1.: DJGPP specific changes. ======================= All DJGPP specific changes to the sources are documentated in the diffs file stored in the /djgpp directory. To avoid a 8.3 file name collision between libmpeg2.[a|la] and libmpeg2convert.[a|la] the later has been renamed to libmpg2convert.[a|la]. As for all binaries and libraries that handle images of any kind, it should be noticed that files (streams) are *always* openend in binary mode with all the well known implications on a DOS/WINDOWS OS if the stream is connected to STDIN and/or STDOUT when these are still connected to the console. To configure and compile the sources you will need LFN support. This means that you can only unzip and build the binaries on an OS that offers LFN support like Win9X, WinXP, etc. There will be no support for the building on plain DOS by me. IMHO this is not worth to be done nowadays if the amount of work exceeds certain limit. Of course, the distributed and/or build binaries and libraries will *always* work on plain DOS. 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: djdev203.zip (or a later but NOT a prior version) bsh205b.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 bsh204b.zip or later and *NOT* a prior version or the build will fail. The same applies to djdev203.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 Send suggestions and bug reports concerning the DJGPP port to comp.os.msdos.djgpp or . Enjoy. Guerrero, Juan Manuel