Merge remote-tracking branch 'origin/maint'

* origin/maint:
  maint: post-release administrivia
  version 3.0.4
  gnulib: update
  build: re-enable compiler warnings, and fix them
  tests: c++: fix a C++03 conformance issue
  tests: fix a title
  c++: reserve 200 slots in the parser's stack
  tests: be more robust to unrecognized synclines, and try to recognize xlc
  tests: fix C++ conformance
  build: fix some warnings
  build: avoid infinite recursions on include_next

.prev-version

@@ -1 +1 @@
-3.0.3
+3.0.4

Makefile.am

@@ -39,8 +39,9 @@ AM_YFLAGS = -d -v -Werror -Wall -Wno-yacc --report=all
 
 # Initialization before completion by local.mk's.
 AM_CFLAGS = $(WARN_CFLAGS)
-# Find builddir/src/scan-code.c etc.
+# Find builddir/src/scan-code.c etc.  For some reason "-I./lib"
-AM_CPPFLAGS = -I. -Ilib -I$(top_srcdir) -I$(top_srcdir)/lib
+# instead of "-Ilib" avoids infinite recursions on #include_next.
+AM_CPPFLAGS = -I. -I./lib -I$(top_srcdir) -I$(top_srcdir)/lib
 BUILT_SOURCES =
 CLEANFILES =
 DISTCLEANFILES =

NEWS

@@ -45,7 +45,7 @@ GNU Bison NEWS
      input: '0' | exp
                   ^^^
 
-* Noteworthy changes in release ?.? (????-??-??) [?]
+* Noteworthy changes in release 3.0.4 (2015-01-23) [stable]
 
 ** Bug fixes
 
@@ -53,6 +53,10 @@ GNU Bison NEWS
 
   Fix a compiler warning when no %destructor use $$.
 
+*** Test suites
+
+  Several portability issues in tests were fixed.
+
 * Noteworthy changes in release 3.0.3 (2015-01-15) [stable]
 
 ** Bug fixes

THANKS

@@ -66,6 +66,7 @@ Jim Kent                  jkent@arch.sel.sony.com
 Jim Meyering              jim@meyering.net
 Joel E. Denny             joeldenny@joeldenny.org
 Johan van Selst           johans@stack.nl
+John Horigan              john@glyphic.com
 Jonathan Fabrizio         jonathan.fabrizio@lrde.epita.fr
 Jonathan Nieder           jrnieder@gmail.com
 Juan Manuel Guerrero      juan.guerrero@gmx.de
@@ -113,6 +114,7 @@ Peter Fales               psfales@lucent.com
 Peter Hamorsky            hamo@upjs.sk
 Peter Simons              simons@cryp.to
 Petr Machata              pmachata@redhat.com
+Pho                       pho@cielonegro.org
 Piotr Gackiewicz          gacek@intertel.com.pl
 Quentin Hocquet           hocquet@gostai.com
 Quoc Peyrot               chojin@lrde.epita.fr

configure.ac

@@ -81,7 +81,7 @@ AC_ARG_ENABLE([gcc-warnings],
               [enable_gcc_warnings=no])
 AM_CONDITIONAL([ENABLE_GCC_WARNINGS], [test "$enable_gcc_warnings" = yes])
 if test "$enable_gcc_warnings" = yes; then
-  warn_common='-Wall-Wextra -Wno-sign-compare -Wcast-align -Wdocumentation
+  warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align -Wdocumentation
     -Wformat -Wpointer-arith -Wwrite-strings'
   warn_c='-Wbad-function-cast -Wshadow -Wstrict-prototypes'
   warn_cxx='-Wnoexcept'

data/lalr1.cc

@@ -149,10 +149,11 @@ b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])])
 m4_define([b4_shared_declarations],
 [b4_percent_code_get([[requires]])[
 ]b4_parse_assert_if([# include <cassert>])[
-# include <vector>
+# include <cstdlib> // std::abort
 # include <iostream>
 # include <stdexcept>
-# include <string>]b4_defines_if([[
+# include <string>
+# include <vector>]b4_defines_if([[
 # include "stack.hh"
 ]b4_bison_locations_if([[# include "location.hh"]])])[
 ]b4_variant_if([b4_variant_includes])[
@@ -569,7 +570,10 @@ m4_if(b4_prefix, [yy], [],
   ]b4_parser_class_name[::symbol_number_type
   ]b4_parser_class_name[::by_state::type_get () const
   {
-    return state == empty_state ? empty_symbol : yystos_[state];
+    if (state == empty_state)
+      return empty_symbol;
+    else
+      return yystos_[state];
   }
 
   inline
@@ -622,6 +626,10 @@ m4_if(b4_prefix, [yy], [],
     std::ostream& yyoutput = yyo;
     YYUSE (yyoutput);
     symbol_number_type yytype = yysym.type_get ();
+    // Avoid a (spurious) G++ 4.8 warning about "array subscript is
+    // below array bounds".
+    if (yysym.empty ())
+      std::abort ();
     yyo << (yytype < yyntokens_ ? "token" : "nterm")
         << ' ' << yytname_[yytype] << " ("]b4_locations_if([
         << yysym.location << ": "])[;

data/stack.hh

@@ -32,12 +32,12 @@ m4_define([b4_stack_define],
     stack ()
       : seq_ ()
     {
+      seq_.reserve (200);
     }
 
     stack (unsigned int n)
       : seq_ (n)
-    {
+    {}
-    }
 
     inline
     T&
@@ -114,8 +114,7 @@ m4_define([b4_stack_define],
     slice (const S& stack, unsigned int range)
       : stack_ (stack)
       , range_ (range)
-    {
+    {}
-    }
 
     inline
     const T&

src/AnnotationList.c

@@ -546,7 +546,7 @@ AnnotationList__compute_from_inadequacies (
                     AnnotationList__insertInto (annotation_node,
                                                 &annotation_lists[s->number],
                                                 s->nitems);
-                  aver (b);
+                  aver (b); (void) b;
                 }
                 /* This aver makes sure the
                    AnnotationList__computeDominantContribution check above

src/InadequacyList.c

@@ -66,7 +66,7 @@ symbol *
 InadequacyList__getContributionToken (InadequacyList const *self,
                                       ContributionIndex i)
 {
-  aver (0 <= i && i < self->contributionCount);
+  aver (0 <= i && i < self->contributionCount); (void) i;
   return self->inadequacy.conflict.token;
 }
 

src/graphviz.c

@@ -113,8 +113,8 @@ conclude_red (struct obstack *out, int source, rule_number ruleno,
          with n the source state and m the rule number. This is because we
          don't want all the reductions bearing a same rule number to point to
          the same state, since that is not the desired format. */
-      fprintf (fout, "  %1$d -> \"%1$dR%2$d%3$s\" [",
+      fprintf (fout, "  %d -> \"%dR%d%s\" [",
-               source, ruleno, ed);
+               source, source, ruleno, ed);
 
       /* (The lookahead tokens have been added to the beginning of the
          obstack, in the caller function.) */

src/ielr.c

@@ -1102,7 +1102,10 @@ ielr (void)
     else if (STREQ (type, "canonical-lr"))
       lr_type = LR_TYPE__CANONICAL_LR;
     else
-      aver (false);
+      {
+        aver (false);
+        abort ();
+      }
     free (type);
   }
 

src/print.c

@@ -344,6 +344,7 @@ print_reductions (FILE *out, state *s)
             || (STREQ (default_reductions, "consistent")
                 && default_reduction_only)
             || (reds->num == 1 && reds->rules[0]->number == 0));
+      (void) default_reduction_only;
       free (default_reductions);
     }
 }

src/scan-code.l

@@ -664,7 +664,7 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
 
     case LHS_REF:
       if (!type_name)
-        type_name = symbol_list_n_type_name_get (rule, dollar_loc, 0);
+        type_name = symbol_list_n_type_name_get (rule, 0);
 
       if (!type_name)
         {
@@ -695,8 +695,7 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
       if (max_left_semantic_context < 1 - n)
         max_left_semantic_context = 1 - n;
       if (!type_name && 0 < n)
-        type_name =
+        type_name = symbol_list_n_type_name_get (effective_rule, n);
-          symbol_list_n_type_name_get (effective_rule, dollar_loc, n);
       if (!type_name)
         {
           if (union_seen | tag_seen)

src/symlist.c

@@ -190,7 +190,7 @@ symbol_list_n_get (symbol_list *l, int n)
 `--------------------------------------------------------------*/
 
 uniqstr
-symbol_list_n_type_name_get (symbol_list *l, location loc, int n)
+symbol_list_n_type_name_get (symbol_list *l, int n)
 {
   return symbol_list_n_get (l, n)->content.sym->content->type_name;
 }

src/symlist.h

@@ -124,7 +124,7 @@ symbol_list *symbol_list_n_get (symbol_list *l, int n);
 
 /* Get the data type (alternative in the union) of the value for
    symbol N in rule RULE.  */
-uniqstr symbol_list_n_type_name_get (symbol_list *l, location loc, int n);
+uniqstr symbol_list_n_type_name_get (symbol_list *l, int n);
 
 /* Check whether the node is a border element of a rule. */
 bool symbol_list_null (symbol_list *node);

src/symtab.c

@@ -187,7 +187,7 @@ code_props_type_string (code_props_type kind)
     case printer:
       return "%printer";
     }
-  assert (0);
+  abort ();
 }
 
 

src/symtab.h

@@ -74,12 +74,12 @@ typedef enum
     declared,
   } status;
 
-typedef enum code_props_type code_props_type;
 enum code_props_type
   {
     destructor = 0,
     printer = 1,
   };
+typedef enum code_props_type code_props_type;
 
 enum { CODE_PROPS_SIZE = 2 };
 

src/tables.c

@@ -698,7 +698,7 @@ pack_vector (vector_number vector)
 
       if (ok)
         {
-          int loc;
+          int loc PACIFY_CC (= -1);
           int k;
           for (k = 0; k < t; k++)
             {

tests/actions.at

@@ -633,7 +633,7 @@ main (int argc, const char *argv[])
 {
   int status;
   yydebug = !!getenv ("YYDEBUG");
-  assert (argc == 2);
+  assert (argc == 2); (void) argc;
   source = argv[1];
   status = yyparse ();
   switch (status)
@@ -1530,10 +1530,13 @@ AT_DATA_GRAMMAR([[input.y]],
 
 ]AT_SKEL_CC_IF([[
 # include <iostream>
-  static void
+  namespace
-  report (std::ostream& yyo, int ival, float fval)
   {
-    yyo << "ival: " << ival << ", fval: " <<  fval;
+    void
+    report (std::ostream& yyo, int ival, float fval)
+    {
+      yyo << "ival: " << ival << ", fval: " <<  fval;
+    }
   }
 ]], [[
 # include <stdio.h>

tests/c++.at

@@ -342,7 +342,6 @@ AT_PARSER_CHECK([./list], 0,
 ]],
 [[Destroy: ""
 Destroy: "0"
-Destroy: (0)
 Destroy: 1
 Destroy: "1"
 Destroy: ()
@@ -719,6 +718,7 @@ $1
   #include <cstdlib> // size_t and getenv.
   #include <iostream>
   #include <set>
+  #include <string>
 
   bool debug = false;
 
@@ -751,7 +751,7 @@ $1
     ~Object ()
     {
       log (this, "Object::~Object");
-      objects::const_iterator i = instances.find (this);
+      objects::iterator i = instances.find (this);
       // Make sure this object is alive.
       assert (i != instances.end ());
       Object::instances.erase (i);

tests/calc.at

@@ -94,8 +94,8 @@ main (int argc, const char **argv)
   status = ]AT_NAME_PREFIX[parse (]AT_PARAM_IF([[&result, &count]])[);
   if (fclose (input))
     perror ("fclose");
-  assert (global_result == result);
+  assert (global_result == result); (void) result;
-  assert (global_count == count);
+  assert (global_count == count);   (void) count;
   return status;
 }
 ]])

tests/conflicts.at

@@ -395,7 +395,7 @@ AT_CLEANUP
 
 m4_pushdef([AT_CONSISTENT_ERRORS_CHECK], [
 
-AT_SETUP([[parse.error=verbose and consistent errors: $1]])
+AT_SETUP([[parse.error=verbose and consistent errors: ]$1])
 
 AT_BISON_OPTION_PUSHDEFS([$1])
 

tests/cxx-type.at

@@ -127,7 +127,7 @@ declarator : ID
 int
 main (int argc, char **argv)
 {
-  assert (argc == 2);
+  assert (argc == 2); (void) argc;
   if (!freopen (argv[1], "r", stdin))
     return 3;
   return yyparse ();

tests/glr-regression.at

@@ -72,7 +72,7 @@ const char *input = YY_NULLPTR;
 int
 main (int argc, const char* argv[])
 {
-  assert (argc == 2);
+  assert (argc == 2); (void) argc;
   input = argv[1];
   return yyparse ();
 }

tests/named-refs.at

@@ -162,8 +162,8 @@ int main (int argc, const char **argv)
     }
   status = yyparse ();
   fclose (input);
-  assert (global_result == result);
+  assert (global_result == result); (void) global_result; (void) result;
-  assert (global_count == count);
+  assert (global_count == count);   (void) global_count;  (void) count;
   return status;
 }
 ]])

tests/synclines.at

@@ -19,13 +19,13 @@
 AT_BANNER([[User Actions.]])
 
 
-# AT_SYNCLINES_COMPILE(FILE)
+# _AT_SYNCLINES_COMPILE(FILE)
-# --------------------------
+# ---------------------------
 # Compile FILE expecting an error, and save in the file stdout the
 # normalized output.  Ignore the exit status, since some compilers
 # (e.g. c89 on IRIX 6.5) trigger warnings on '#error', instead of
 # errors.
-m4_define([AT_SYNCLINES_COMPILE],
+m4_define([_AT_SYNCLINES_COMPILE],
 [AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
 
 # Transform stderr into something like this:
@@ -75,6 +75,12 @@ m4_define([AT_SYNCLINES_COMPILE],
 # When c++ is used to compiler C, we might have more messages (Clang 3.2):
 #
 #    clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
+#
+#
+# xlc reports things like:
+#
+#    "input.yy", line 80.21: 1540-0218 (S) The call does not match any parameter list for "operator<<".
+#    "/usr/vacpp/include/iosfwd", line 32.6: 1506-205 (S) #error This file to be used only with IBM VisualAge C++ v4 and later compilers
 
 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
   # 1. Remove useless lines.
@@ -92,6 +98,8 @@ AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
 
   # 2. Normalize the lines we kept.
 
+  # xlc messages.  Remove also error identifier (e.g., "1540-0218 (S)").
+  s/^"(.*?)", line ([\w.]*): \d+-\d+ \(.\) /$][1:$][2: /gm;
   # Remove column.
   s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
   # Map all combinations of "error: " and "#error: " to "#error ".
@@ -101,13 +109,14 @@ EOF
   0, [stdout])
 ])
 
-# AT_TEST(TITLE, INPUT, ERROR-MSG)
+
-# --------------------------------
+
-# Check that compiling the parser produced from INPUT cause GCC
+# AT_SYNCLINES_COMPILE(FILE)
-# to issue ERROR-MSG.
+# --------------------------
-m4_pushdef([AT_TEST],
+# Compile FILE expecting an error, and save in the file stdout the
-[AT_SETUP([$1])
+# normalized output.  If we can't get a trustable location
-AT_BISON_OPTION_PUSHDEFS
+# from the compiler, just skip the test.
+#
 # It seems impossible to find a generic scheme to check the location
 # of an error.  Even requiring GCC is not sufficient, since for instance
 # the version modified by Apple:
@@ -124,15 +133,29 @@ AT_BISON_OPTION_PUSHDEFS
 #
 # | input.y:2: "2"
 # | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
-
+m4_define([AT_SYNCLINES_COMPILE],
+[# Check if we can trust location translation.
 AT_DATA([syncline.c],
 [[#error "1"
 int i; /* avoids -pedantic warning about an empty translation unit. */
 ]])
 
-AT_SYNCLINES_COMPILE([syncline.c])
+_AT_SYNCLINES_COMPILE([syncline.c])
 AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
 
+# Then work for real.
+_AT_SYNCLINES_COMPILE([$1])
+])
+
+
+# AT_TEST(TITLE, INPUT, ERROR-MSG)
+# --------------------------------
+# Check that compiling the parser produced from INPUT cause GCC
+# to issue ERROR-MSG.
+m4_pushdef([AT_TEST],
+[AT_SETUP([$1])
+AT_BISON_OPTION_PUSHDEFS
+
 AT_DATA([[input.y]], [$2])
 AT_BISON_CHECK([-o input.c input.y])
 AT_SYNCLINES_COMPILE([input.c])

tests/torture.at

@@ -403,7 +403,7 @@ get_args (int argc, const char **argv)
 {
   int res;
   char *endp;
-  assert (argc == 2);
+  assert (argc == 2); (void) argc;
   res = strtol (argv[1], &endp, 10);
   assert (argv[1] != endp);
   assert (0 <= res);