195 lines
8.4 KiB
Text
195 lines
8.4 KiB
Text
This is a port of GNU Bison @VERSION@ to MSDOS/DJGPP.
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Copyright (C) 2005-2012 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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1.: DJGPP specific changes.
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=======================
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The DJGPP port of Bison offers LFN and SFN support depending on which
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OS it is running. If LFN support is available or not is determinated at
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run time. If LFN support is available (DOS session under Win9X, Win2K,
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WinXP, etc.) the standard posix file name extensions will be used.
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These are: y.tab.c, y.tab.c++, y.tab.h, y.output, etc. If only SFN
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support is available (plain DOS), then the standard MSDOS short file
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names will be used. These are: y_tab.c, y_tab.h, y.out, etc.
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It should be noticed that this bison version needs the m4 program as
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back end to generate the parser file (y.tab.c etc.) from the skeleton
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files. This implies that m4 must always be installed to get bison
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working. m4 will use a couple of m4 scripts that will be installed in
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/dev/env/DJDIR/share/bison and shall not be removed.
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It should also be noticed that the skeleton files bison.simple and
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bison.hairy are no longer supported. This applies also to the environ-
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ment variables BISON_HAIRY and BISON_SIMPLE. Those variables are *no*
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longer honored at all.
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The kind of skeleton file bison.hairy is no longer supported at all.
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The skeleton file bison.simple is now called yacc.c and is an m4 script.
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The other two skeleton files supported by this bison version are glr.c
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and lalr1.cc. The first one is a generalized LR C parser based on
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Bison's LALR(1) tables and the second one is a experimental C++ parser
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class.
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As has been told before, bison uses m4 to generate the parser file.
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This is done by forking and using pipes for the IPC. MSDOS does not
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support this functionality so this has been reproduced in the usual
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way by redirecting stdin and stdout of bison and m4 to temporary files
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and processing these files in sequence.
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It should be noticed that due to the great amount of file names that do
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not cleanly map to 8.3 file names, you will need an OS with LFN support
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to configure and compile the sources. On Win98 this implies that the
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generation of numeric tails for 8.3 file name aliases must be enabled
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or the compilation will fail.
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Please **read** the docs.
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2.: Installing the binary package.
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==============================
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2.1.: Copy the binary distribution into the top DJGPP installation directory,
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just unzip it preserving the directory structure running *ONE* of the
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following commands:
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unzip32 bsn@PACKAGE_VERSION@b.zip or
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djtarx bsn@PACKAGE_VERSION@b.zip or
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pkunzip -d bsn@PACKAGE_VERSION@b.zip
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3.: Building the binaries from sources.
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===================================
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3.1.: Create a temporary directory and copy the source package into the
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directory. If you download the source distribution from one of the
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DJGPP sites, just unzip it preserving the directory structure
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running *ONE* of the following commands:
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unzip32 bsn@PACKAGE_VERSION@s.zip or
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djtarx bsn@PACKAGE_VERSION@s.zip or
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pkunzip -d bsn@PACKAGE_VERSION@s.zip
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and proceed to the paragraph 3.3, below.
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3.2.: Source distributions downloaded from one of the GNU FTP sites need
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some more work to unpack, if LFN support is not available. If LFN is
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available then you can extract the source files from the archive with
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any unzip program and proceed to the paragraph 3.3, below. Any file
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name issue will be handled by the DJGPP configuration files.
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To unpack the source distribution on SFN systems, first, you MUST use
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the `djunpack' batch file to unzip the package. That is because some
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file names in the official distributions need to be changed to avoid
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problems on the various platforms supported by DJGPP.
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`djunpack' invokes the `djtar' program (that is part of the basic DJGPP
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development kit) to rename these files on the fly given a file with
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name mappings; the distribution includes a file `djgpp/fnchange.lst'
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with the necessary mappings. So you need first to retrieve that batch
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file, and then invoke it to unpack the distribution. Here's how:
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djtar -x -p -o bison-@VERSION@/djgpp/djunpack.bat bison-@VERSION@.tar.gz > djunpack.bat
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djunpack bison-@VERSION@.tar.gz
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(The name of the distribution archive and the leading directory of the
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path to `djunpack.bat' in the distribution will be different for
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versions of Bison other than @VERSION@.)
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If the argument to `djunpack.bat' include leading directories, it MUST
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be given with the DOS-style backslashes; Unix-style forward slashes
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will NOT work.
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If the distribution comes as a .tar.bz2 archive, and your version of
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`djtar' doesn't support bzip2 decompression, you need to unpack it as
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follows:
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bnzip2 bison-@VERSION@.tar.bz2
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djtar -x -p -o bison-@VERSION@/djgpp/djunpack.bat bison-@VERSION@.tar > djunpack.bat
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djunpack bison-@VERSION@.tar
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3.3.: To build the binaries you will need the following binary packages:
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djdev203.zip (or a later but NOT a prior version)
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bsh204b.zip (or a later but NOT a prior version)
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gccNNNb.zip, gppNNN.zip, bnuNNNb.zip, makNNNb.zip, filNNNb.zip,
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perlNNNb.zip, shlNNNb.zip, txtNNNb.zip, txiNNNb.zip, grepNNNb.zip,
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sedNNNb.zip and m4NNN.zip
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If you want to run the check you will need also:
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difNNNb.zip
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NNN represents the latest version number of the binary packages. All
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this packages can be found in the /v2gnu directory of any
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ftp.delorie.com mirror.
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You will need bsh204b.zip or later and *NOT* a prior version or
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the build will fail. The same applies to djdev203.zip. Please note
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that Bison requires m4-144b.zip or later to work properly.
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3.4.: If for some reason you want to reconfigure the package cd into the top
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srcdir (bison-@TREE_VERSION@) and run the following commands:
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del djgpp\config.cache
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make clean
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djgpp\config
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Please note that you *MUST* delete the config.cache file in the djgpp
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subdir or you will not really reconfigure the sources because the
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configuration informations will be read from the cache file instead
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of being newly computed.
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To build the programs in a directory other than where the sources are,
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you must add the parameter that specifies the source directory,
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e.g:
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x:\src\gnu\bison-@TREE_VERSION@\djgpp\config x:/src/gnu/bison-@TREE_VERSION@
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Lets assume you want to build the binaries in a directory placed on a
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different drive (z:\build in this case) from where the sources are,
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then you will run the following commands:
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z:
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md \build
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cd \build
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x:\src\gnu\bison-@TREE_VERSION@\djgpp\config x:/src/gnu/bison-@TREE_VERSION@
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The order of the options and the srcdir option does not matter. You
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*MUST* use forward slashes to specify the source directory.
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The batch file will set same environment variables, make MSDOS specific
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modifications to the Makefile.in's and supply all other needed options
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to the configure script.
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3.5.: To compile the package run from the top srcdir the command:
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make
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3.6.: Now you can run the tests if you like. From the top srcdir run the
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command:
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make check
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No test should fail but the tests #131 (Doxygen Public Documentation)
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and #132 (Doxygen Private Documentation) will be skipped. Please note
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that the testsuite only works with LFN available. On plain DOS, most
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of the tests will fail due to invalid DOS names.
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3.7.: To install the binaries, header, library, catalogs, and info docs
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run the following command from the top srcdir:
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make install
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This will install the products into your DJGPP installation tree given
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by the default prefix "/dev/env/DJDIR". If you prefer to install them
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into some other directory you will have to set prefix to the appropriate
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value:
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make install prefix=z:/some/other/place
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Send GNU bison specific bug reports to <bug-bison@gnu.org>.
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Send suggestions and bug reports concerning the DJGPP port to
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comp.os.msdos.djgpp or <djgpp@delorie.com>.
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Enjoy.
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Guerrero, Juan Manuel <juan.guerrero@gmx.de>
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