version 3.0

* NEWS: Record release date.

.prev-version

@@ -1 +1 @@
-2.7.90
+2.7.91

NEWS

@@ -1,13 +1,6 @@
 GNU Bison NEWS
 
-* Noteworthy changes in release 2.7.91 (2013-06-24) [beta]
-
-** Java skeleton improvements
-
-  The Java skeleton now supports push parsing.
-  Contributed by Dennis Heimbigner.
-
-* Noteworthy changes in release 2.7.90 (2013-05-30) [beta]
+* Noteworthy changes in release 3.0 (2013-07-25) [stable]
 
 ** WARNING: Future backward-incompatibilities!
 
@@ -528,6 +521,9 @@ GNU Bison NEWS
   and "%define init_throws".
   Contributed by Paolo Bonzini.
 
+  The Java skeleton now supports push parsing.
+  Contributed by Dennis Heimbigner.
+
 ** C++ skeletons improvements
 
 *** The parser header is no longer mandatory (lalr1.cc, glr.cc)

bootstrap

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2013-05-08.20; # UTC
+scriptversion=2013-07-03.20; # UTC
 
 # Bootstrap this package from checked-out sources.
 
@@ -256,12 +256,12 @@ esac
 # Extra files from gnulib, which override files from other sources.
 test -z "${gnulib_extra_files}" && \
   gnulib_extra_files="
-        $build_aux/install-sh
-        $build_aux/mdate-sh
-        $build_aux/texinfo.tex
-        $build_aux/depcomp
-        $build_aux/config.guess
-        $build_aux/config.sub
+        build-aux/install-sh
+        build-aux/mdate-sh
+        build-aux/texinfo.tex
+        build-aux/depcomp
+        build-aux/config.guess
+        build-aux/config.sub
         doc/INSTALL
 "
 
@@ -551,7 +551,7 @@ fi
 echo "$0: Bootstrapping from checked-out $package sources..."
 
 # See if we can use gnulib's git-merge-changelog merge driver.
-if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
+if $use_git && test -d .git && (git --version) >/dev/null 2>/dev/null ; then
   if git config merge.merge-changelog.driver >/dev/null ; then
     :
   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
@@ -574,13 +574,17 @@ git_modules_config () {
   test -f .gitmodules && git config --file .gitmodules "$@"
 }
 
-gnulib_path=$(git_modules_config submodule.gnulib.path)
-test -z "$gnulib_path" && gnulib_path=gnulib
+if $use_git; then
+  gnulib_path=$(git_modules_config submodule.gnulib.path)
+  test -z "$gnulib_path" && gnulib_path=gnulib
+fi
 
-# Get gnulib files.
+# Get gnulib files.  Populate $GNULIB_SRCDIR, possibly updating a
+# submodule, for use in the rest of the script.
 
 case ${GNULIB_SRCDIR--} in
 -)
+  # Note that $use_git is necessarily true in this case.
   if git_modules_config submodule.gnulib.url >/dev/null; then
     echo "$0: getting gnulib files..."
     git submodule init || exit $?
@@ -601,8 +605,8 @@ case ${GNULIB_SRCDIR--} in
   GNULIB_SRCDIR=$gnulib_path
   ;;
 *)
-  # Use GNULIB_SRCDIR as a reference.
-  if test -d "$GNULIB_SRCDIR"/.git && \
+  # Use GNULIB_SRCDIR directly or as a reference.
+  if $use_git && test -d "$GNULIB_SRCDIR"/.git && \
         git_modules_config submodule.gnulib.url >/dev/null; then
     echo "$0: getting gnulib files..."
     if git submodule -h|grep -- --reference > /dev/null; then
@@ -628,6 +632,9 @@ case ${GNULIB_SRCDIR--} in
   ;;
 esac
 
+# $GNULIB_SRCDIR now points to the version of gnulib to use, and
+# we no longer need to use git or $gnulib_path below here.
+
 if $bootstrap_sync; then
   cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
     echo "$0: updating bootstrap and restarting..."

data/c.m4

@@ -221,6 +221,25 @@ m4_define([b4_attribute_define],
 #else
 # define YYUSE(E) /* empty */
 #endif
+
+#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
+/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
+    _Pragma ("GCC diagnostic push") \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
+    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
+    _Pragma ("GCC diagnostic pop")
+#else
+# define YY_INITIAL_VALUE(Value) Value
+#endif
+#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END
+#endif
+#ifndef YY_INITIAL_VALUE
+# define YY_INITIAL_VALUE(Value) /* Nothing. */
+#endif
 ])
 
 
@@ -446,7 +465,9 @@ m4_ifset([b4_parse_param], [, b4_parse_param]))[
     yymsg = "Deleting";
   YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
 
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
   ]b4_symbol_actions([destructor])[
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
 }]dnl
 ])
 
@@ -456,9 +477,9 @@ m4_ifset([b4_parse_param], [, b4_parse_param]))[
 # Define the "yy_symbol_print" function.
 m4_define_default([b4_yy_symbol_print_define],
 [[
-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
+/*----------------------------------------.
+| Print this symbol's value on YYOUTPUT.  |
+`----------------------------------------*/
 
 ]b4_function_define([yy_symbol_value_print],
     [static void],

data/yacc.c

@@ -175,36 +175,19 @@ m4_define([b4_declare_scanner_communication_variables], [[
 int yychar;
 
 ]b4_pure_if([[
-#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
-/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
-    _Pragma ("GCC diagnostic push") \
-    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
-    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
-    _Pragma ("GCC diagnostic pop")
-#else
+/* The semantic value of the lookahead symbol.  */
 /* Default value used for initialization, for pacifying older GCCs
    or non-GCC compilers.  */
-static YYSTYPE yyval_default;
-# define YY_INITIAL_VALUE(Value) = Value
-#endif]b4_locations_if([[
-static YYLTYPE yyloc_default][]b4_yyloc_default[;]])])[
-#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
-# define YY_IGNORE_MAYBE_UNINITIALIZED_END
-#endif
-#ifndef YY_INITIAL_VALUE
-# define YY_INITIAL_VALUE(Value) /* Nothing. */
-#endif
-
-/* The semantic value of the lookahead symbol.  */
-YYSTYPE yylval YY_INITIAL_VALUE (yyval_default);]b4_locations_if([[
+YY_INITIAL_VALUE (static YYSTYPE yyval_default;)
+YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default);]b4_locations_if([[
 
 /* Location data for the lookahead symbol.  */
-YYLTYPE yylloc]b4_pure_if([ = yyloc_default], [b4_yyloc_default])[;
-]])b4_pure_if([], [[
-
+static YYLTYPE yyloc_default]b4_yyloc_default[;
+YYLTYPE yylloc = yyloc_default;]])],
+[[/* The semantic value of the lookahead symbol.  */
+YYSTYPE yylval;]b4_locations_if([[
+/* Location data for the lookahead symbol.  */
+YYLTYPE yylloc]b4_yyloc_default[;]])[
 /* Number of syntax errors so far.  */
 int yynerrs;]])])
 

src/parse-gram.h

@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 2.7.90.  */
+/* A Bison parser, made by GNU Bison 3.0.  */
 
 /* Bison interface for Yacc-like parsers in C
 
@@ -48,11 +48,11 @@
 extern int gram_debug;
 #endif
 /* "%code requires" blocks.  */
-#line 21 "src/parse-gram.y" /* yacc.c:1926  */
+#line 21 "src/parse-gram.y" /* yacc.c:1909  */
 
   #include "symlist.h"
   #include "symtab.h"
-#line 221 "src/parse-gram.y" /* yacc.c:1926  */
+#line 221 "src/parse-gram.y" /* yacc.c:1909  */
 
   typedef enum
   {
@@ -61,10 +61,10 @@ extern int gram_debug;
     param_parse  = 1 << 1,
     param_both   = param_lex | param_parse
   } param_type;
-#line 645 "src/parse-gram.y" /* yacc.c:1926  */
+#line 645 "src/parse-gram.y" /* yacc.c:1909  */
 #include "muscle-tab.h"
 
-#line 68 "src/parse-gram.h" /* yacc.c:1926  */
+#line 68 "src/parse-gram.h" /* yacc.c:1909  */
 
 /* Token type.  */
 #ifndef GRAM_TOKENTYPE
@@ -135,27 +135,27 @@ extern int gram_debug;
 typedef union GRAM_STYPE GRAM_STYPE;
 union GRAM_STYPE
 {
-#line 182 "src/parse-gram.y" /* yacc.c:1926  */
+#line 182 "src/parse-gram.y" /* yacc.c:1909  */
 unsigned char character;
-#line 186 "src/parse-gram.y" /* yacc.c:1926  */
+#line 186 "src/parse-gram.y" /* yacc.c:1909  */
 char *code;
-#line 191 "src/parse-gram.y" /* yacc.c:1926  */
+#line 191 "src/parse-gram.y" /* yacc.c:1909  */
 uniqstr uniqstr;
-#line 199 "src/parse-gram.y" /* yacc.c:1926  */
+#line 199 "src/parse-gram.y" /* yacc.c:1909  */
 int integer;
-#line 203 "src/parse-gram.y" /* yacc.c:1926  */
+#line 203 "src/parse-gram.y" /* yacc.c:1909  */
 symbol *symbol;
-#line 208 "src/parse-gram.y" /* yacc.c:1926  */
+#line 208 "src/parse-gram.y" /* yacc.c:1909  */
 assoc assoc;
-#line 211 "src/parse-gram.y" /* yacc.c:1926  */
+#line 211 "src/parse-gram.y" /* yacc.c:1909  */
 symbol_list *list;
-#line 214 "src/parse-gram.y" /* yacc.c:1926  */
+#line 214 "src/parse-gram.y" /* yacc.c:1909  */
 named_ref *named_ref;
-#line 241 "src/parse-gram.y" /* yacc.c:1926  */
+#line 241 "src/parse-gram.y" /* yacc.c:1909  */
 param_type param;
-#line 409 "src/parse-gram.y" /* yacc.c:1926  */
+#line 409 "src/parse-gram.y" /* yacc.c:1909  */
 code_props_type code_type;
-#line 647 "src/parse-gram.y" /* yacc.c:1926  */
+#line 647 "src/parse-gram.y" /* yacc.c:1909  */
 
   struct
   {
@@ -163,7 +163,7 @@ code_props_type code_type;
     muscle_kind kind;
   } value;
 
-#line 167 "src/parse-gram.h" /* yacc.c:1926  */
+#line 167 "src/parse-gram.h" /* yacc.c:1909  */
 };
 # define GRAM_STYPE_IS_TRIVIAL 1
 # define GRAM_STYPE_IS_DECLARED 1

tests/atlocal.in

@@ -50,6 +50,37 @@ CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@"
 # If 'exit 77'; skip all C++ tests; otherwise ':'.
 BISON_CXX_WORKS='@BISON_CXX_WORKS@'
 
+# Be sure that the C++ compiler is not broken because of gnulib.  This
+# cannot be checked in configure (gnulib is not parameterized yet),
+# and checking this in every C++ test in AC_COMPILE_CXX is too costly.
+#
+# http://lists.gnu.org/archive/html/bug-bison/2013-06/msg00001.html
+#
+# FIXME: Check (say 2014) whether this is still needed.
+if $BISON_CXX_WORKS; then
+  # See AT_DATA_SOURCE_PROLOGUE.
+  cat >conftest.cc <<EOF
+#include <config.h>
+/* We don't need perfect functions for these tests. */
+#undef malloc
+#undef memcmp
+#undef realloc
+#include <iostream>
+
+int main ()
+{
+  std::cout << "Works" << std::endl;
+}
+EOF
+  ls
+  $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS $LIBS -o conftest conftest.cc
+  case $? in
+   0);;
+   *) BISON_CXX_WORKS="as_fn_error 77 cannot-compile-simple-program";;
+  esac
+  rm -f conftest*
+fi
+
 # Whether the compiler supports POSIXLY_CORRECT defined.
 : ${C_COMPILER_POSIXLY_CORRECT='@C_COMPILER_POSIXLY_CORRECT@'}
 : ${CXX_COMPILER_POSIXLY_CORRECT='@CXX_COMPILER_POSIXLY_CORRECT@'}

tests/c++.at

@@ -795,11 +795,11 @@ item:
 // Not just 'E', otherwise we reduce when 'E' is the lookahead, and
 // then the stack is emptied, defeating the point of the test.
 | 'E' 'a' { YYUSE($][1); $][$ = $][2; }
-| 'R'     { $][$ = YY_NULL; ]AT_VARIANT_IF([], [delete $][1]; )[YYERROR; }
+| 'R'     { ]AT_VARIANT_IF([], [$][$ = YY_NULL; delete $][1]; )[YYERROR; }
 | 'p'     { $][$ = $][1; }
 | 's'     { $][$ = $][1; throw std::runtime_error ("reduction"); }
-| 'T'     { $][$ = YY_NULL; ]AT_VARIANT_IF([], [delete $][1]; )[YYABORT; }
-| error   { $][$ = YY_NULL; yyerrok; }
+| 'T'     { ]AT_VARIANT_IF([], [$][$ = YY_NULL; delete $][1]; )[YYABORT; }
+| error   { ]AT_VARIANT_IF([], [$][$ = YY_NULL; ])[yyerrok; }
 ;
 %%
 

tests/local.at

@@ -339,9 +339,9 @@ m4_define([AT_LANG_DISPATCH],
 
 
 # AT_DATA_SOURCE_PROLOGUE
-# ------------------------
+# -----------------------
 # The prologue that should be included in any source code that is
-# meant to be compiled.
+# meant to be compiled.  Keep atlocal.in sync (BISON_CXX_WORKS).
 m4_define([AT_DATA_SOURCE_PROLOGUE],
 [[#include <config.h>
 /* We don't need perfect functions for these tests. */
@@ -754,6 +754,7 @@ AT_CHECK(m4_join([ ],
                   [m4_bmatch([$1], [[.]], [], [$LIBS])]),
            0, [ignore], [ignore])])
 
+
 # AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc])
 # ---------------------------------------------
 # Compile SOURCES into OUTPUT.  If the C++ compiler does not work,
@@ -761,7 +762,7 @@ AT_CHECK(m4_join([ ],
 #
 # If OUTPUT does not contain '.', assume that we are linking too,
 # otherwise pass "-c"; this is a hack.  The default SOURCES is OUTPUT
-# with trailing .o removed, and ".cc" appended.
+# with trailing ".o" removed, and ".cc" appended.
 m4_define([AT_COMPILE_CXX],
 [AT_KEYWORDS(c++)
 AT_CHECK([$BISON_CXX_WORKS], 0, ignore, ignore)

tests/output.at

@@ -37,10 +37,11 @@ foo: {};
 
 ]AT_BISON_CHECK([$3 $1 $5], 0)[
 # Ignore the files non-generated files
-]AT_CHECK([find . -type f -and -not -path './$1' -and -not -path './testsuite.log' |
-           sed 's,\./,,' |
-           sort |
-           xargs echo],
+]AT_CHECK([[find . -type f |
+           $PERL -ne '
+      s,\./,,; chomp;
+      push @file, $_ unless m{^($1|testsuite.log)$};
+      END { print join (" ", sort @file), "\n" }']],
           [], [$4
 ])[
 ]$6[