This is a port of GNU M4 1.4.2 to MSDOS/DJGPP.

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

        This port is based on Eli Zaretskii's and Richard Dawe's port, so the
        DJGPP specific changes are almost the same than for those previous
        version of m4. The djgpp specific files (config.bat, readme files, etc.)
        are located in the /djgpp subdir.


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

2.1.:   Copy the binary distribution into the top DJGPP installation directory
        and unzip it running *ONE* of the following commands:
          unzip32 m4-142b.zip      or
          djtarx m4-142b.zip       or
          pkunzip -d m4-142b.zip

        For futher information about GNU libmatheval please read the info docs.


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

3.1.:   To build the binaries you will need the following binary packages:
          djdev203.zip (patch level 2, see the djdev203.dsm)
          bsh204b.zip, gcc342b.zip, bnu215b.zip, mak3791b.zip,
          fil41b.zip, shl2011b.zip, txt20b.zip, txi47b.zip,
          grep24b.zip, sed412b.zip and dif281b.zip.
        For the testsuite gwk311b.zip will be needed.

        All this packages can be found in the v2gnu directory of ftp.delorie.com
        and any mirror. The above cited packages are those ones I have used to
        build the binaries from this sources. Previuos versions of those packages
        may do the job as well but I have not tested this.

3.2.:   Create a temporary directory. Copy the source package: m4-142s.zip
        into the directory and unzip it runnig ONE of the following commands:
          unzip32 m4-142s.zip      or
          djtarx m4-142s.zip       or
          pkunzip -d m4-142s.zip

3.3.:   If for some reason you want to reconfigure the package cd into the top
        srcdir (m4-1.4-2) and run the following commands:
          del djgpp\config.cache
          make distclean
          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\m4-1.4-2\djgpp\config x:/src/gnu/m4-1.4-2

        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\m4-1.4-2\djgpp\config x:/src/gnu/m4-1.4-2

        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.ins 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 testsuite by issuing the command:
          make check
        from the top srcdir. If LFN support is available then the tests
        30.include and 51.eval will fail. If only SFN is available then
        tests 30.include, 51.eval, 56.errprint and 57.m4exit will fail.
        Note that tests which check M4 diagnostics will always fail,
        because they make too many assumptions about how the error
        messages printed to stderr look like.

3.6.:   To install the binary, info docs 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.
        Example:
          make install prefix=z:/some/other/dir




        Send m4 specific bug reports to <bug-m4@gnu.org>.
        Send suggestions and bug reports concerning the DJGPP port
        to comp.os.msdos.djgpp or <djgpp@delorie.com>.

Enjoy.

          Guerrero, Juan Manuel <st001906@hrz1.hrz.tu-darmstadt.de>
