Replace bison 3.4.2 with bison 3.6.4

steps/bison-3.6.4/import-gnulib.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+# SPDX-FileCopyrightText: 2021 Samuel Tyler <samuel@samuelt.me>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+../gnulib-ffbb0ce/gnulib-tool --import --local-dir=gl \
+ --lib=libbison \
+ --source-base=lib \
+ --m4-base=m4 \
+ --po-base=gnulib-po \
+ --doc-base=doc \
+ --tests-base=tests \
+ --aux-dir=build-aux \
+ --makefile-name=gnulib.mk \
+ --conditional-dependencies \
+ --no-libtool \
+ --macro-prefix=gl \
+ --po-domain=bison \
+ argmatch \
+ array-list \
+ assert \
+ assure \
+ bitsetv \
+ c-strcase \
+ calloc-posix \
+ close \
+ closeout \
+ config-h \
+ configmake \
+ dirname \
+ error \
+ extensions \
+ fdl \
+ fopen-safer \
+ fprintf-posix \
+ fstrcmp \
+ getopt-gnu \
+ gettext-h \
+ git-version-gen \
+ gitlog-to-changelog \
+ gpl-3.0 \
+ intprops \
+ inttypes \
+ isnan \
+ javacomp-script \
+ javaexec-script \
+ ldexpl \
+ libtextstyle-optional \
+ malloc-gnu \
+ mbfile \
+ mbswidth \
+ non-recursive-gnulib-prefix-hack \
+ obstack \
+ obstack-printf \
+ perror \
+ printf-posix \
+ progname \
+ quote \
+ quotearg \
+ readline \
+ readme-release \
+ realloc-posix \
+ relocatable-prog \
+ relocatable-script \
+ rename \
+ snprintf-posix \
+ spawn-pipe \
+ sprintf-posix \
+ stdbool \
+ stpcpy \
+ strdup-posix \
+ strerror \
+ strverscmp \
+ timevar \
+ unistd \
+ unistd-safer \
+ unlink \
+ unlocked-io \
+ unsetenv \
+ update-copyright \
+ verify \
+ vsnprintf-posix \
+ vsprintf-posix \
+ warnings \
+ winsz-ioctl \
+ winsz-termios \
+ xalloc \
+ xalloc-die \
+ xconcat-filename \
+ xhash \
+ xlist \
+ xmemdup0 \
+ xstrndup
+
+build-aux/prefix-gnulib-mk --lib-name=libbison lib/gnulib.mk

steps/bison-3.6.4/pass1.sh

@@ -0,0 +1,47 @@
+# SPDX-FileCopyrightText: 2021-22 Samuel Tyler <samuel@samuelt.me>
+# SPDX-FileCopyrightText: 2022 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    default
+
+    # GRAM_error was added after Bison 3.4, and doesn't add anything
+    # other than some sanity checks.
+    sed -i '/GRAM_error/d' src/scan-gram.l
+
+    # Remove pre-generated flex/bison files
+    rm src/parse-gram.c src/parse-gram.h
+    rm src/scan-code.c
+    rm src/scan-gram.c
+    rm src/scan-skel.c
+
+    # Remove pregenerated info files
+    rm doc/bison.info*
+
+    # Remove gettext files
+    rm runtime-po/*.gmo
+
+    ../../import-gnulib.sh
+
+    # pregenerated gperf files
+    for f in lib/iconv_open-*.gperf; do
+        touch "$(basename "$f" .gperf).h"
+    done
+
+    AUTOPOINT=true AUTOMAKE=automake-1.15 ACLOCAL=aclocal-1.15 autoreconf-2.69 -fi
+}
+
+src_configure() {
+    ./configure --prefix="${PREFIX}" \
+        --libdir="${LIBDIR}" \
+        --disable-nls
+}
+
+src_compile() {
+    make -j1 MAKEINFO=true
+}
+
+src_install() {
+    make MAKEINFO=true DESTDIR="${DESTDIR}" install
+}

steps/bison-3.6.4/patches/0001-Revert-diagnostics-translate-bison-s-own-tokens.patch

@@ -0,0 +1,118 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Revert "diagnostics: translate bison's own tokens"
+
+This reverts commit 2cc361387c9790b387d205f5d862f493c148e424.
+
+This format is not suppported by Bison 3.4.
+---
+ src/parse-gram.y | 71 ++++++++++++++++++++++++++----------------------
+ 1 file changed, 39 insertions(+), 32 deletions(-)
+
+diff --git bison-3.6.4/src/parse-gram.y bison-3.6.1/src/parse-gram.y
+index d09f49a7..0879ca41 100644
+--- bison-3.6.4/src/parse-gram.y
++++ bison-3.6.4/src/parse-gram.y
+@@ -140,26 +140,32 @@
+   boundary_set (&@$.end, grammar_file, 1, 1, 1);
+ }
+ 
+-%token
+-  STRING              _("string")
+-  TSTRING             _("translatable string")
++/* Define the tokens together with their human representation.  */
++%token GRAM_EOF 0 "end of file"
++%token STRING     "string"
++       TSTRING    "translatable string"
++
++%token PERCENT_TOKEN       "%token"
++%token PERCENT_NTERM       "%nterm"
+ 
+-  PERCENT_TOKEN       "%token"
+-  PERCENT_NTERM       "%nterm"
++%token PERCENT_TYPE        "%type"
++%token PERCENT_DESTRUCTOR  "%destructor"
++%token PERCENT_PRINTER     "%printer"
+ 
+-  PERCENT_TYPE        "%type"
+-  PERCENT_DESTRUCTOR  "%destructor"
+-  PERCENT_PRINTER     "%printer"
++%token PERCENT_LEFT        "%left"
++%token PERCENT_RIGHT       "%right"
++%token PERCENT_NONASSOC    "%nonassoc"
++%token PERCENT_PRECEDENCE  "%precedence"
+ 
+-  PERCENT_LEFT        "%left"
+-  PERCENT_RIGHT       "%right"
+-  PERCENT_NONASSOC    "%nonassoc"
+-  PERCENT_PRECEDENCE  "%precedence"
++%token PERCENT_PREC          "%prec"
++%token PERCENT_DPREC         "%dprec"
++%token PERCENT_MERGE         "%merge"
+ 
+-  PERCENT_PREC        "%prec"
+-  PERCENT_DPREC       "%dprec"
+-  PERCENT_MERGE       "%merge"
++/*----------------------.
++| Global Declarations.  |
++`----------------------*/
+ 
++%token
+   PERCENT_CODE            "%code"
+   PERCENT_DEFAULT_PREC    "%default-prec"
+   PERCENT_DEFINE          "%define"
+@@ -185,23 +191,24 @@
+   PERCENT_TOKEN_TABLE     "%token-table"
+   PERCENT_VERBOSE         "%verbose"
+   PERCENT_YACC            "%yacc"
++;
+ 
+-  BRACED_CODE       "{...}"
+-  BRACED_PREDICATE  "%?{...}"
+-  BRACKETED_ID      _("[identifier]")
+-  CHAR              _("character literal")
+-  COLON             ":"
+-  EPILOGUE          _("epilogue")
+-  EQUAL             "="
+-  ID                _("identifier")
+-  ID_COLON          _("identifier:")
+-  PERCENT_PERCENT   "%%"
+-  PIPE              "|"
+-  PROLOGUE          "%{...%}"
+-  SEMICOLON         ";"
+-  TAG               _("<tag>")
+-  TAG_ANY           "<*>"
+-  TAG_NONE          "<>"
++%token BRACED_CODE     "{...}"
++%token BRACED_PREDICATE "%?{...}"
++%token BRACKETED_ID    "[identifier]"
++%token CHAR            "character literal"
++%token COLON           ":"
++%token EPILOGUE        "epilogue"
++%token EQUAL           "="
++%token ID              "identifier"
++%token ID_COLON        "identifier:"
++%token PERCENT_PERCENT "%%"
++%token PIPE            "|"
++%token PROLOGUE        "%{...%}"
++%token SEMICOLON       ";"
++%token TAG             "<tag>"
++%token TAG_ANY         "<*>"
++%token TAG_NONE        "<>"
+ 
+  /* Experimental feature, don't rely on it.  */
+ %code pre-printer  {tron (yyo);}
+@@ -224,7 +231,7 @@
+ %printer { fprintf (yyo, "%%%s", $$); } PERCENT_FLAG
+ %printer { fprintf (yyo, "<%s>", $$); } TAG tag
+ 
+-%token <int> INT _("integer literal")
++%token <int> INT "integer"
+ %printer { fprintf (yyo, "%d", $$); } <int>
+ 
+ %type <symbol*> id id_colon string_as_id symbol token_decl token_decl_for_prec
+-- 
+2.52.0
+

steps/bison-3.6.4/patches/dangling-alias.patch

@@ -0,0 +1,17 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Our version of bison does not have dangling-alias.
+
+--- bison-3.6.4/Makefile.am	2025-12-15 22:03:53.093822507 +1100
++++ bison-3.6.4/Makefile.am	2025-12-15 22:04:07.336823714 +1100
+@@ -42,7 +42,7 @@
+ BISON = $(top_builddir)/tests/bison
+ BISON_IN = $(top_srcdir)/tests/bison.in
+ YACC = $(BISON) -o y.tab.c
+-AM_YFLAGS_WITH_LINES = --defines -Werror -Wall,dangling-alias --report=all
++AM_YFLAGS_WITH_LINES = --defines -Wall --report=all
+ AM_YFLAGS = $(AM_YFLAGS_WITH_LINES) --no-lines
+ 
+ # Initialization before completion by local.mk's.

steps/bison-3.6.4/patches/iconv-autoconf.patch

@@ -0,0 +1,29 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+It is unclear _why_ this is necessary. Something gets broken with
+iconv detection for this version.
+
+--- bison-3.6.4/m4/gettext.m4	2025-12-15 23:14:05.683179597 +1100
++++ bison-3.6.4/m4/gettext.m4	2025-12-15 23:14:18.450180679 +1100
+@@ -93,9 +93,6 @@
+   dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
+   dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
+   dnl documented, we avoid it.
+-  ifelse(gt_included_intl, yes, , [
+-    AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
+-  ])
+ 
+   dnl Sometimes, on Mac OS X, libintl requires linking with CoreFoundation.
+   gt_INTL_MACOSX
+@@ -174,9 +171,6 @@
+ 
+         if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then
+           dnl Sometimes libintl requires libiconv, so first search for libiconv.
+-          ifelse(gt_included_intl, yes, , [
+-            AM_ICONV_LINK
+-          ])
+           dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
+           dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
+           dnl because that would add "-liconv" to LIBINTL and LTLIBINTL

steps/bison-3.6.4/patches/our-bison.patch

@@ -0,0 +1,18 @@
+SPDX-FileCopyrightText: 2021 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Why do they insist on using themselves to bootstrap themselves? It doesn't
+exist...
+
+--- bison-3.6.4/Makefile.am	2021-04-15 21:29:36.596205032 +1000
++++ bison-3.6.4/Makefile.am	2021-04-15 21:30:00.367365897 +1000
+@@ -39,7 +39,7 @@
+ ## Running the bison from this tarball.  To generate our own parser,
+ ## but also to run the tests.  Of course, you ought to keep a sane
+ ## version of Bison nearby...
+-BISON = $(top_builddir)/tests/bison
++BISON = /usr/bin/bison
+ BISON_IN = $(top_srcdir)/tests/bison.in
+ YACC = $(BISON) -o y.tab.c
+ AM_YFLAGS_WITH_LINES = --defines -Werror -Wall --report=all

steps/bison-3.6.4/patches/parse-error.patch

@@ -0,0 +1,21 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+These are directives that don't exist for Bison 3.4.
+
+diff --git bison-3.6.4/src/parse-gram.y bison-3.6.4/src/parse-gram.y
+index d09f49a7..01b8dda9 100644
+--- bison-3.6.4/src/parse-gram.y
++++ bison-3.6.4/src/parse-gram.y
+@@ -122,10 +122,8 @@
+ %define api.header.include {"parse-gram.h"}
+ %define api.prefix {gram_}
+ %define api.pure full
+-%define api.token.raw
+ %define api.value.type union
+ %define locations
+-%define parse.error custom
+ %define parse.lac full
+ %define parse.trace
+ %defines

steps/bison-3.6.4/patches/po-files.patch

@@ -0,0 +1,25 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Can't fetch PO files, no network access.
+
+--- gnulib-ffbb0ce/gnulib-tool	2025-12-15 21:17:35.808587084 +1100
++++ gnulib-ffbb0ce/gnulib-tool	2025-12-15 21:17:55.399588744 +1100
+@@ -5598,16 +5598,6 @@
+       fi
+       func_append added_files "$pobase/POTFILES.in$nl"
+     fi
+-    # Fetch PO files.
+-    TP_URL="https://translationproject.org/latest/"
+-    if $doit; then
+-      echo "Fetching gnulib PO files from $TP_URL"
+-      (cd "$destdir"/$pobase \
+-       && wget --no-verbose --mirror --level=1 -nd -A.po -P . "${TP_URL}gnulib/"
+-      )
+-    else
+-      echo "Fetch gnulib PO files from $TP_URL"
+-    fi
+     # Create po/LINGUAS.
+     if $doit; then
+       func_dest_tmpfilename $pobase/LINGUAS

steps/bison-3.6.4/patches/yycontext-remove.patch

@@ -0,0 +1,42 @@
+SPDX-FileCopyrightText: 2025 Samuel Tyler <samuel@samuelt.me>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This was added with the addition of yypcontext_t -- it's the only use,
+remove it. (Bison 3.4 doesn't know about yypcontext_t.)
+
+diff --git bison-3.6.4/src/parse-gram.y bison-3.5.90/src/parse-gram.y
+index d09f49a7..cf1a5bf4 100644
+--- bison-3.6.4/src/parse-gram.y
++++ bison-3.6.4/src/parse-gram.y
+@@ -798,28 +798,9 @@ epilogue.opt:
+ %%
+ 
+ int
+-yyreport_syntax_error (const yypcontext_t *ctx)
++yyreport_syntax_error (const void *ctx)
+ {
+-  int res = 0;
+-  /* Arguments of format: reported tokens (one for the "unexpected",
+-     one per "expected"). */
+-  enum { ARGS_MAX = 5 };
+-  const char *argv[ARGS_MAX];
+-  int argc = 0;
+-  yysymbol_kind_t unexpected = yypcontext_token (ctx);
+-  if (unexpected != YYSYMBOL_YYEMPTY)
+-    {
+-      argv[argc++] = yysymbol_name (unexpected);
+-      yysymbol_kind_t expected[ARGS_MAX - 1];
+-      int nexpected = yypcontext_expected_tokens (ctx, expected, ARGS_MAX - 1);
+-      if (nexpected < 0)
+-        res = nexpected;
+-      else
+-        for (int i = 0; i < nexpected; ++i)
+-          argv[argc++] = yysymbol_name (expected[i]);
+-    }
+-  syntax_error (*yypcontext_location (ctx), argc, argv);
+-  return res;
++  return 0;
+ }
+ 
+ 

steps/bison-3.6.4/sources

@@ -0,0 +1,2 @@
+f http://mirrors.kernel.org/gnu/bison/bison-3.6.4.tar.xz 8b13473b31ca7fcf65e5e8a74224368ffd5df19275602a9c9567ba393f18577d
+g https://https.git.savannah.gnu.org/git/gnulib.git~ffbb0ce _ 4c14c95b301e74804dd82d3993176b03cffedc18221bf573db35d21f2f8a930e gnulib-ffbb0ce.tar.gz