This is a DJGPP port of byacc 1.9


1. DJGPP specific changes.
   -----------------------
   This version of byacc handles the file name creation a little
   bit different than the prior versions of this port.
   On plain DOS and Win9X, if LFN support is *NOT* available the
   usual short file names will be used:
        y_tab.c, y_tab.h, y_code.c and y.out

   On Win9X with available LFN support, you can control the file
   name used by specifying or not the new command-line option `-s'.
   This option controls if `.tab' or `_tab' is used as an extension.
   The following file names are used depending on if the option has
   been specified or not:

   1. If `-s' has *NOT* been specified then the following names will
      be used:
        y.tab.c, y.tab.h, y.code.c and y.output

   2. If `-s' has been specified then the same names as on plain DOS
      will be used:
        y_tab.c, y_tab.h, y_code.c and y.out

   On plain DOS and Win9X without LFN support the `-s' option is
   ignored. With this new command-line option you should be able
   to write makefiles that run unmodified on plain DOS and Win95,
   if the `-s' option is specified. If you run a posix makefile
   on Win9X with LFN support available and you omit the `-s' option
   the makefile should also run unmodified. Of course, "unmodified"
   refers only to the grammar file targets in the makefile.


2. Installation.
   -------------

 - Unzip the binary package byacc19br2.zip preserving the directory
   structure (-d switch to PKUNZIP) from the top DJGPP directory.


3. Building byacc.
   ---------------

 - In addition to the standard DJGPP tools, this are v2/djdev205.zip
   v2gnu/bnu225br2.zip and v2gnu/gcc510b.zip or any later version, you
   will need Make and Install from the Fileutils. They are available
   as v2gnu/makNNNb.zip and v2gnu/filNNNb.zip, accordingly, from the
   usual DJGPP sites.

 - Unzip the source package byacc19sr2.zip preserving the directory
   structure (-d switch to PKUNZIP).
   This creates a directory contrib/byacc-1.9.

 - Chdir to the byacc directory and type the following command to
   compile and link yacc and byacc (yacc is a sym link to byacc):

      make

 - To install the products (yacc.exe, byacc.exe and yacc.1) type
   the following command:

      make install                    or
      make install DEST=c:/djgpp      respectively.

   If ${DJDIR} is set DEST will default to this value, else replace
   DEST=c:/djgpp by the appropiate prefix for your DJGPP installation.
    
 - The file diffs in the djgpp directory describes the changes that
   I've done relative to the original byacc distribution.

Enjoy.

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