bison: Update to version 3.8.2

  - Update from 3.7.6 to 3.8.2
- Update rootfile
- Changelog
   Noteworthy changes in release 3.8.2 (2021-09-25) [stable]
     Fixed portability issues of bison on Cygwin.
     Improvements in glr2.cc: add support for custom error messages (`%define
      parse.error custom`), allow linking several parsers together.
   Noteworthy changes in release 3.8.1 (2021-09-11) [stable]
     The generation of prototypes for yylex and yyerror in Yacc mode is
      breaking existing grammar files.  To avoid breaking too many grammars, the
      prototypes are now generated when `-y/--yacc` is used *and* the
      `POSIXLY_CORRECT` environment variable is defined.
     Avoid using `-y`/`--yacc` simply to comply with Yacc's file name
      conventions, rather, use `-o y.tab.c`.  Autoconf's AC_PROG_YACC macro uses
      `-y`.  Avoid it if possible, for instance by using gnulib's gl_PROG_BISON.
   Noteworthy changes in release 3.8 (2021-09-07) [stable]
    ** Backward incompatible changes
     In conformance with the recommendations of the Graphviz team
      (https://marc.info/?l=graphviz-devel&m=129418103126092), `-g`/`--graph`
      now generates a *.gv file by default, instead of *.dot.  A transition
      started in Bison 3.4.
     To comply with the latest POSIX standard, in Yacc compatibility mode
      (options `-y`/`--yacc`) Bison now generates prototypes for yyerror and
      yylex.  In some situations, this is breaking compatibility: if the user
      has already declared these functions but with some differences (e.g., to
      declare them as static, or to use specific attributes), the generated
      parser will fail to compile.  To disable these prototypes, #define yyerror
      (to `yyerror`), and likewise for yylex.
    ** Deprecated features
     Support for the YYPRINT macro is removed. It worked only with yacc.c and
      only for tokens.  It was obsoleted by %printer, introduced in Bison 1.50
      (November 2002).
     It has always been recommended to prefer `%define api.value.type foo` to
      `#define YYSTYPE foo`.  The latter is supported in C for compatibility
      with Yacc, but not in C++.  Warnings are now issued if `#define YYSTYPE`
      is used in C++, and eventually support will be removed.
     In C++ code, prefer value_type to semantic_type to denote the semantic
      value type, which is specified by the `api.value.type` %define variable.
    ** New features
    *** A skeleton for the D programming language
     The "lalr1.d" skeleton is now officially part of Bison.
     It was originally contributed by Oliver Mangold, based on Paolo Bonzini's
      lalr1.java, and was improved by H. S. Teoh.  Adela Vais then took over
      maintenance and invested a lot of efforts to complete, test and document
      it.
     It now supports all the bells and whistles of the other deterministic
      parsers, which include: pull/push interfaces, verbose and custom error
      messages, lookahead correction, token constructors, internationalization,
      locations, printers, token and symbol prefixes, etc.
     Two examples demonstrate the D parsers: a basic one (examples/d/simple),
      and an advanced one (examples/d/calc).
    *** Option -H, --header and directive %header
     The option `-H`/`--header` supersedes the option `--defines`, and the
      directive %header supersedes %defines.  Both `--defines` and `%defines`
      are, of course, maintained for backward compatibility.
    *** Option --html
     Since version 2.4 Bison can be used to generate HTML reports.  However it
      was a two-step process: first bison must be invoked with option `--xml`,
      and then xsltproc must be run to the convert the XML reports into HTML.
     The new option `--html` combines these steps.  The xsltproc program must
      be available.
    *** A C++ native GLR parser
     A new version of the C++ GLR parser was added: "glr2.cc".  It generates
      "true C++11", instead of a C++ wrapper around a C parser as does the
      existing "glr.cc" parser.  As a first significant consequence, it supports
      `%define api.value.type variant`, contrary to glr.cc.
     It should be upward compatible in terms of interface, feature and
      performance to "glr.cc". To try it out, simply use
      %skeleton "glr2.cc"
     It will eventually replace "glr.cc".  However we need user feedback on
      this skeleton.  _Please_ report your results and comments about it.
    *** Counterexamples
     Counterexamples now show the rule numbers, and always show ε for rules
      with an empty right-hand side.  For instance
        exp
        ↳ 1: e1       e2     "a"
             ↳ 3: ε • ↳ 1: ε
      instead of
        exp
        ↳ e1  e2  "a"
          ↳ • ↳ ε
    *** Lookahead correction in Java
     The Java skeleton (lalr1.java) now supports LAC, via the `parse.lac`
      %define variable.
    *** Abort parsing for memory exhaustion (C)
     User actions may now use `YYNOMEM` (similar to `YYACCEPT` and `YYABORT`)
      to abort the current parse with memory exhaustion.
    *** Printing locations in debug traces (C)
     The `YYLOCATION_PRINT(File, Loc)` macro prints a location.  It is defined
      when (i) locations are enabled, (ii) the default type for locations is
      used, (iii) debug traces are enabled, and (iv) `YYLOCATION_PRINT` is not
      already defined.
     Users may define `YYLOCATION_PRINT` to cover other cases.
    *** GLR traces
     There were no debug traces for deferred calls to user actions.  They are
      logged now.
   Noteworthy changes in release 3.7.6 (2021-03-08) [stable]
    ** Bug fixes
    *** Reused Push Parsers
     When a push-parser state structure is used for multiple parses, it was
      possible for some state to leak from one run into the following one.
    *** Fix Table Generation
     In some very rare conditions, when there are many useless tokens, it was
      possible to generate incorrect parsers.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
---
 config/rootfiles/common/bison | 14 +++++++++++---
 lfs/bison                     |  4 ++--
 2 files changed, 13 insertions(+), 5 deletions(-)

Message ID	20211020202758.3061772-1-adolf.belka@ipfire.org
State	Accepted
Commit	2ae78be0817c9e2f667171cfa7e1c87655a28000
Headers	From: Adolf Belka <adolf.belka@ipfire.org> To: development@lists.ipfire.org Subject: [PATCH] bison: Update to version 3.8.2 Date: Wed, 20 Oct 2021 22:27:58 +0200 Message-Id: <20211020202758.3061772-1-adolf.belka@ipfire.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: list Errors-To: development-bounces@lists.ipfire.org Sender: "Development" <development-bounces@lists.ipfire.org>
Series	bison: Update to version 3.8.2 \| bison: Update to version 3.8.2

bison: Update to version 3.8.2

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