options: rename --defines as --header

The name "defines" is incorrect, the generated file contains far more than just #defines. * src/getargs.h, src/getargs.c (-H, --header): New option. With optional argument, just like --defines, --xml, etc. (defines_flag): Rename as... (header_flag): this. Adjust dependencies. * data/skeletons/bison.m4, data/skeletons/c.m4, data/skeletons/glr.c, * data/skeletons/glr.cc, data/skeletons/glr2.cc, data/skeletons/lalr1.cc, * data/skeletons/yacc.c: Adjust. * examples, doc/bison.texi: Adjust. * tests/headers.at, tests/local.at, tests/output.at: Convert most tests from using --defines to using --header.
2026-03-09 12:23:04 +00:00 · 2020-09-06 13:30:23 +02:00
parent b329f0b5df
commit 75c3746ce2
27 changed files with 78 additions and 63 deletions
--- a/7
+++ b/7
@@ -4,6 +4,13 @@ GNU Bison NEWS

 ** Changes

+** New features
+
+*** Option -H, --header
+
+  The option -H/--header replaces the option --defines (maintained for
+  backward compatibility).
+
 *** A C++ native GLR parser

  A new version of the generated C++ GLR parser was added as "glr2.cc". It
--- a/data/skeletons/bison.m4
+++ b/data/skeletons/bison.m4
@@ -391,9 +391,9 @@ m4_define([b4_$3_if],
 # b4_FLAG_if(IF-TRUE, IF-FALSE)
 # -----------------------------
 # Expand IF-TRUE, if FLAG is true, IF-FALSE otherwise.
-b4_define_flag_if([defines])            # Whether headers are requested.
 b4_define_flag_if([glr])                # Whether a GLR parser is requested.
 b4_define_flag_if([has_translations])   # Whether some tokens are internationalized.
+b4_define_flag_if([header])             # Whether a header is requested.
 b4_define_flag_if([nondeterministic])   # Whether conflicts should be handled.
 b4_define_flag_if([token_table])        # Whether yytoken_table is demanded.
 b4_define_flag_if([yacc])               # Whether POSIX Yacc is emulated.
--- a/data/skeletons/c.m4
+++ b/data/skeletons/c.m4
@@ -953,7 +953,7 @@ struct ]b4_api_PREFIX[LTYPE

 # b4_declare_yylstype
 # -------------------
-# Declarations that might either go into the header (if --defines) or
+# Declarations that might either go into the header (if --header) or
 # in the parser body.  Declare YYSTYPE/YYLTYPE, and yylval/yylloc.
 m4_define([b4_declare_yylstype],
 [b4_value_type_define[]b4_locations_if([
--- a/data/skeletons/glr.c
+++ b/data/skeletons/glr.c
@@ -151,7 +151,7 @@ m4_define([b4_rhs_location],

 # b4_shared_declarations
 # ----------------------
-# Declaration that might either go into the header (if --defines)
+# Declaration that might either go into the header (if --header)
 # or open coded in the parser body.  glr.cc has its own definition.
 m4_if(b4_skeleton, ["glr.c"],
 [m4_define([b4_shared_declarations],
@@ -185,7 +185,7 @@ int ]b4_prefix[parse (]m4_ifset([b4_parse_param], [b4_formals(b4_parse_param)],

 # glr.cc produces its own header.
 b4_glr_cc_if([],
-[b4_defines_if(
+[b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C],
             [2002-2015, 2018-2020])[
@@ -228,7 +228,7 @@ b4_copyright([Skeleton implementation for Bison GLR parsers in C],
 ]b4_cast_define[
 ]b4_null_define[

-]b4_defines_if([[#include "@basename(]b4_spec_header_file[@)"]],
+]b4_header_if([[#include "@basename(]b4_spec_header_file[@)"]],
               [b4_shared_declarations])[

 ]b4_glr_cc_if([b4_glr_cc_setup],
--- a/data/skeletons/glr.cc
+++ b/data/skeletons/glr.cc
@@ -281,7 +281,7 @@ b4_symbol_foreach([b4_undef_symbol_kind])dnl

 # b4_shared_declarations(hh|cc)
 # -----------------------------
-# Declaration that might either go into the header (if --defines, $1 = hh)
+# Declaration that might either go into the header (if --header, $1 = hh)
 # or in the implementation file.
 m4_define([b4_shared_declarations],
 [m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
@@ -378,7 +378,7 @@ b4_percent_code_get([[requires]])[
 ]m4_popdef([b4_parse_param])dnl
 ])[

-]b4_defines_if(
+]b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
             [2002-2015, 2018-2020])[
--- a/data/skeletons/glr2.cc
+++ b/data/skeletons/glr2.cc
@@ -101,7 +101,7 @@ m4_define([b4_glr_cc_cleanup],

 # b4_shared_declarations(hh|cc)
 # -----------------------------
-# Declaration that might either go into the header (if --defines, $1 = hh)
+# Declaration that might either go into the header (if --header, $1 = hh)
 # or in the implementation file.
 m4_define([b4_shared_declarations],
 [m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
@@ -317,7 +317,7 @@ const std::ptrdiff_t strong_index_alias<T>::INVALID_INDEX =
 ]m4_popdef([b4_parse_param])dnl
 ])[

-]b4_defines_if(
+]b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
             [2002-2015, 2018-2020])[
@@ -491,7 +491,7 @@ b4_copyright([Skeleton implementation for Bison GLR parsers in C],

 ]b4_null_define[

-]b4_defines_if([[#include "@basename(]b4_spec_header_file[@)"]],
+]b4_header_if([[#include "@basename(]b4_spec_header_file[@)"]],
               [b4_shared_declarations])[

 ]b4_glr_cc_setup[
--- a/data/skeletons/lalr1.cc
+++ b/data/skeletons/lalr1.cc
@@ -174,7 +174,7 @@ b4_variant_if([m4_include(b4_skeletonsdir/[variant.hh])])

 # b4_shared_declarations(hh|cc)
 # -----------------------------
-# Declaration that might either go into the header (if --defines, $1 = hh)
+# Declaration that might either go into the header (if --header, $1 = hh)
 # or in the implementation file.
 m4_define([b4_shared_declarations],
 [b4_percent_code_get([[requires]])[
@@ -500,7 +500,7 @@ m4_define([b4_shared_declarations],
 ## Output files.  ##
 ## -------------- ##

-b4_defines_if(
+b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
 [
@@ -530,7 +530,7 @@ m4_if(b4_prefix, [yy], [],

 ]b4_user_pre_prologue[

-]b4_defines_if([[#include "@basename(]b4_spec_header_file[@)"]],
+]b4_header_if([[#include "@basename(]b4_spec_header_file[@)"]],
               [b4_shared_declarations([cc])])[

 ]b4_user_post_prologue[
--- a/data/skeletons/lalr1.java
+++ b/data/skeletons/lalr1.java
@@ -17,7 +17,7 @@

 m4_include(b4_skeletonsdir/[java.m4])

-b4_defines_if([b4_complain([%defines does not make sense in Java])])
+b4_header_if([b4_complain([%defines does not make sense in Java])])

 m4_define([b4_symbol_no_destructor_assert],
 [b4_symbol_if([$1], [has_destructor],
--- a/data/skeletons/location.cc
+++ b/data/skeletons/location.cc
@@ -22,7 +22,7 @@ m4_pushdef([b4_copyright_years],
 # b4_position_file
 # ----------------
 # Name of the file containing the position class, if we want this file.
-b4_defines_if([b4_required_version_if([302], [],
+b4_header_if([b4_required_version_if([302], [],
                                      [m4_define([b4_position_file], [position.hh])])])])


@@ -32,7 +32,7 @@ b4_defines_if([b4_required_version_if([302], [],
 # if we want this file.
 b4_percent_define_check_file([b4_location_file],
                             [[api.location.file]],
-                             b4_defines_if([[location.hh]]))
+                             b4_header_if([[location.hh]]))

 # b4_location_include
 # -------------------
--- a/data/skeletons/stack.hh
+++ b/data/skeletons/stack.hh
@@ -19,7 +19,7 @@
 # b4_stack_file
 # -------------
 # Name of the file containing the stack class, if we want this file.
-b4_defines_if([b4_required_version_if([302], [],
+b4_header_if([b4_required_version_if([302], [],
                                      [m4_define([b4_stack_file], [stack.hh])])])


--- a/data/skeletons/yacc.c
+++ b/data/skeletons/yacc.c
@@ -293,7 +293,7 @@ m4_define([b4_declare_yyparse],

 # b4_shared_declarations
 # ----------------------
-# Declaration that might either go into the header (if --defines)
+# Declaration that might either go into the header (if --header)
 # or open coded in the parser body.
 m4_define([b4_shared_declarations],
 [b4_cpp_guard_open([b4_spec_mapped_header_file])[
@@ -330,13 +330,13 @@ m4_if(b4_spec_header_file, [y.tab.h], [],
 ## -------------- ##


-b4_defines_if([[
+b4_header_if([[
 ]b4_output_begin([b4_spec_header_file])[
 ]b4_copyright([Bison interface for Yacc-like parsers in C])[
 ]b4_disclaimer[
 ]b4_shared_declarations[
 ]b4_output_end[
-]])# b4_defines_if
+]])# b4_header_if

 b4_output_begin([b4_parser_file_name])[
 ]b4_copyright([Bison implementation for Yacc-like parsers in C])[
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -6092,7 +6092,7 @@ std::string} as default).

@item Purpose: Specify how the generated parser should include the generated header.

-Historically, when option @option{-D}/@option{--defines} was used,
+Historically, when option @option{-d} or @option{--header} was used,
@command{bison} generated a header and pasted an exact copy of it into the
 generated parser implementation file.  Since Bison 3.6, it is
@code{#include}d as @samp{"@var{basename}.h"}, instead of duplicated, unless
@@ -11798,15 +11798,19 @@ Options controlling the output.

@c Please, keep this ordered as in 'bison --help'.
@table @option
-@item --defines[=@var{file}]
+@item -H [@var{file}]
+@itemx --header=[@var{file}]
 Pretend that @code{%defines} was specified, i.e., write an extra output file
 containing definitions for the token kind names defined in the grammar, as
 well as a few other declarations.  @xref{Decl Summary}.

+@item --defines[=@var{file}]
+Historical name for option @option{--header}.
+
@item -d
-This is the same as @option{--defines} except @option{-d} does not accept a
-@var{file} argument since POSIX Yacc requires that @option{-d} can be bundled
-with other short options.
+This is the same as @option{--header} except @option{-d} does not accept a
+@var{file} argument since POSIX Yacc requires that @option{-d} can be
+bundled with other short options.

@item -b @var{file-prefix}
@itemx --file-prefix=@var{prefix}
@@ -13794,7 +13798,8 @@ GLR parsers are currently unsupported in Java.  Do not use the
@code{glr-parser} directive.

 No header file can be generated for Java parsers.  Do not use the
-@code{%defines} directive or the @option{-d}/@option{--defines} options.
+@code{%defines} directive or the @option{-d}/@option{-H}/@option{--header}
+options.

@c FIXME: Possible code change.
 Currently, support for tracing is always compiled in.  Thus the
--- a/examples/c/bistromathic/Makefile
+++ b/examples/c/bistromathic/Makefile
@@ -19,7 +19,7 @@ LIBS = -lreadline -lm # In some environments, -lintl is needed.
 all: $(BASE)

 %.c %.h %.xml %.gv: %.y
-	$(BISON) $(BISONFLAGS) --defines --xml --graph=$*.gv -o $*.c $<
+	$(BISON) $(BISONFLAGS) --header --xml --graph=$*.gv -o $*.c $<

 $(BASE): parse.o
 	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS)
--- a/examples/c/calc/Makefile
+++ b/examples/c/calc/Makefile
@@ -8,7 +8,7 @@ XSLTPROC = xsltproc
 all: $(BASE)

 %.c %.h %.xml %.gv: %.y
-	$(BISON) $(BISONFLAGS) --defines --xml --graph=$*.gv -o $*.c $<
+	$(BISON) $(BISONFLAGS) --header --xml --graph=$*.gv -o $*.c $<

 $(BASE): $(BASE).o
 	$(CC) $(CFLAGS) -o $@ $^
--- a/examples/c/lexcalc/Makefile
+++ b/examples/c/lexcalc/Makefile
@@ -9,7 +9,7 @@ XSLTPROC = xsltproc
 all: $(BASE)

 %.c %.h %.xml %.gv: %.y
-	$(BISON) $(BISONFLAGS) --defines --xml --graph=$*.gv -o $*.c $<
+	$(BISON) $(BISONFLAGS) --header --xml --graph=$*.gv -o $*.c $<

 %.c: %.l
 	$(FLEX) $(FLEXFLAGS) -o$@ $<
--- a/examples/c/pushcalc/Makefile
+++ b/examples/c/pushcalc/Makefile
@@ -8,7 +8,7 @@ XSLTPROC = xsltproc
 all: $(BASE)

 %.c %.h %.xml %.gv: %.y
-	$(BISON) $(BISONFLAGS) --defines --xml --graph=$*.gv -o $*.c $<
+	$(BISON) $(BISONFLAGS) --header --xml --graph=$*.gv -o $*.c $<

 $(BASE): $(BASE).o
 	$(CC) $(CFLAGS) -o $@ $^
--- a/examples/c/reccalc/Makefile
+++ b/examples/c/reccalc/Makefile
@@ -9,7 +9,7 @@ XSLTPROC = xsltproc
 all: $(BASE)

 %.c %.h %.xml %.gv: %.y
-	$(BISON) $(BISONFLAGS) --defines --xml --graph=$*.gv -o $*.c $<
+	$(BISON) $(BISONFLAGS) --header --xml --graph=$*.gv -o $*.c $<

 %.c %.h: %.l
 	$(FLEX) $(FLEXFLAGS) -o$*.c --header=$*.h $<
--- a/src/files.c
+++ b/src/files.c
@@ -56,7 +56,7 @@ location spec_name_prefix_loc = EMPTY_LOCATION_INIT;
 char *spec_verbose_file = NULL;  /* for --verbose. */
 char *spec_graph_file = NULL;    /* for -g. */
 char *spec_xml_file = NULL;      /* for -x. */
-char *spec_header_file = NULL;  /* for --defines. */
+char *spec_header_file = NULL;   /* for --header. */
 char *spec_mapped_header_file = NULL;
 char *parser_file_name;

@@ -411,7 +411,7 @@ compute_output_file_names (void)
     ? xstrdup (spec_outfile)
     : concat2 (all_but_ext, src_extension));

-  if (defines_flag)
+  if (header_flag)
    {
      if (! spec_header_file)
        spec_header_file = concat2 (all_but_ext, header_extension);
--- a/src/files.h
+++ b/src/files.h
@@ -47,10 +47,10 @@ extern char *spec_graph_file;
 /* File name specified for the xml output.  */
 extern char *spec_xml_file;

-/* File name specified with --defines.  */
+/* File name specified with --header.  */
 extern char *spec_header_file;

-/* File name specified with --defines, adjusted for mapped prefixes. */
+/* File name specified with --header, adjusted for mapped prefixes. */
 extern char *spec_mapped_header_file;

 /* Directory prefix of output file names.  */
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -38,7 +38,7 @@
 #include "output.h"
 #include "uniqstr.h"

-bool defines_flag = false;
+bool header_flag = false;
 bool graph_flag = false;
 bool xml_flag = false;
 bool no_lines_flag = false;
@@ -422,11 +422,9 @@ Tuning the Parser:\n\
 "), stdout);
      putc ('\n', stdout);

-      /* Keep -d and --defines separate so that ../build-aux/cross-options.pl
-       * won't assume that -d also takes an argument.  */
      fputs (_("\
 Output Files:\n\
-      --defines[=FILE]          also produce a header file\n\
+  -H, --header=[FILE]           also produce a header file\n\
  -d                            likewise but cannot specify FILE (for POSIX Yacc)\n\
  -r, --report=THINGS           also produce details on the automaton\n\
      --report-file=FILE        write report to FILE\n\
@@ -545,6 +543,7 @@ language_argmatch (char const *arg, int prio, location loc)
 static char const short_options[] =
  "D:"
  "F:"
+  "H::"
  "L:"
  "S:"
  "T::"
@@ -609,6 +608,7 @@ static struct option const long_options[] =
  { "yacc",           no_argument,         0, 'y' },

  /* Output Files. */
+  { "header",          optional_argument,   0,   'H' },
  { "defines",         optional_argument,   0,   'd' },
  { "report",          required_argument,   0,   'r' },
  { "report-file",     required_argument,   0,   REPORT_FILE_OPTION },
@@ -719,6 +719,16 @@ getargs (int argc, char *argv[])
        }
        break;

+      case 'H':
+      case 'd':
+        header_flag = true;
+        if (optarg)
+          {
+            free (spec_header_file);
+            spec_header_file = xstrdup (optarg);
+          }
+        break;
+
      case 'L':
        language_argmatch (optarg, command_line_prio, loc);
        break;
@@ -763,16 +773,6 @@ getargs (int argc, char *argv[])
        spec_file_prefix = optarg;
        break;

-      case 'd':
-        /* Here, the -d and --defines options are differentiated.  */
-        defines_flag = true;
-        if (optarg)
-          {
-            free (spec_header_file);
-            spec_header_file = xstrdup (optarg);
-          }
-        break;
-
      case 'g':
        graph_flag = true;
        if (optarg)
--- a/src/getargs.h
+++ b/src/getargs.h
@@ -34,7 +34,7 @@ extern int skeleton_prio;
 /* for -I */
 extern char const *include;

-extern bool defines_flag;               /* for -d */
+extern bool header_flag;                /* for -d/-H */
 extern bool graph_flag;                 /* for -g */
 extern bool xml_flag;                   /* for -x */
 extern bool no_lines_flag;              /* for -l */
--- a/src/output.c
+++ b/src/output.c
@@ -810,7 +810,7 @@ prepare (void)
  MUSCLE_INSERT_INT ("required_version", required_version);

  /* Flags. */
-  MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
+  MUSCLE_INSERT_BOOL ("header_flag", header_flag);
  MUSCLE_INSERT_BOOL ("glr_flag", glr_parser);
  MUSCLE_INSERT_BOOL ("nondeterministic_flag", nondeterministic_parser);
  MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -2075,7 +2075,7 @@ yyreduce:
    break;

  case 9: /* prologue_declaration: "%defines"  */
-                                   { defines_flag = true; }
+                                   { header_flag = true; }
    break;

  case 10: /* prologue_declaration: "%defines" "string"  */
@@ -2938,7 +2938,7 @@ add_param (param_type type, char *decl, location loc)
 static void
 handle_defines (char const *value)
 {
-  defines_flag = true;
+  header_flag = true;
  char *file = unquote (value);
  spec_header_file = xstrdup (file);
  gram_scanner_last_string_free ();
--- a/src/parse-gram.y
+++ b/src/parse-gram.y
@@ -339,7 +339,7 @@ prologue_declaration:
      muscle_percent_define_insert ($2, @$, $3.kind, $3.chars,
                                    MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
    }
-| "%defines"                       { defines_flag = true; }
+| "%defines"                       { header_flag = true; }
 | "%defines" STRING                { handle_defines ($2); }
 | "%error-verbose"                 { handle_error_verbose (&@$, $1); }
 | "%expect" INT_LITERAL            { expected_sr_conflicts = $2; }
@@ -949,7 +949,7 @@ add_param (param_type type, char *decl, location loc)
 static void
 handle_defines (char const *value)
 {
-  defines_flag = true;
+  header_flag = true;
  char *file = unquote (value);
  spec_header_file = xstrdup (file);
  gram_scanner_last_string_free ();
--- a/tests/headers.at
+++ b/tests/headers.at
@@ -47,7 +47,6 @@ dummy: %empty;
 ])

 AT_BISON_CHECK([--defines=$1.h --output=$1.c $1.y])
-
 AT_COMPILE([$1.o], [-I. -c $1.c])

 AT_BISON_OPTION_POPDEFS
@@ -83,7 +82,7 @@ AT_DATA_GRAMMAR([input.y],
 exp: %empty;
 ]])

-AT_BISON_CHECK([--defines -o input.c input.y], [], [],
+AT_BISON_CHECK([--header -o input.c input.y], [], [],
 [[input.y:11.1-18: warning: deprecated directive: '%name-prefix "my_"', use '%define api.prefix {my_}' [-Wdeprecated]
 input.y: warning: fix-its can be applied.  Rerun with option '--update'. [-Wother]
 ]])
--- a/tests/local.at
+++ b/tests/local.at
@@ -1506,7 +1506,7 @@ m4_define([AT_PARSER_CHECK],
 #
 # If TEST-SPEC contains the attribute no-xml, then invoke bison using
 # AT_BISON_CHECK_NO_XML.  Otherwise, invoke bison using AT_BISON_CHECK.
-# On the bison command-line, specify `--report=all --defines'.  Check
+# On the bison command-line, specify `--report=all --header'.  Check
 # that Bison exits with value 0, has no stdout, and has stderr
 # BISON-STDERR.
 #
@@ -1600,7 +1600,7 @@ yylex (void)

 m4_if(m4_index(m4_quote($3), [no-xml]), -1,
      [AT_BISON_CHECK],
-      [AT_BISON_CHECK_NO_XML])([[-Wall --report=all,no-cex --defines -o input.c input.y]],
+      [AT_BISON_CHECK_NO_XML])([[-Wall --report=all,no-cex --header -o input.c input.y]],
                               [0], [], m4_dquote($7))

 m4_if(m4_index(m4_quote($3), [last-state]), -1,
--- a/tests/output.at
+++ b/tests/output.at
@@ -132,6 +132,10 @@ AT_CHECK_OUTPUT([foo.yy], [%defines %verbose], [],
 AT_CHECK_OUTPUT([foo.yy], [%defines %verbose ], [-o foo.c],
                [foo.c foo.h foo.output])

+AT_CHECK_OUTPUT([foo.yy], [],
+                [--header=foo.hpp -o foo.c++],
+                [foo.c++ foo.hpp])
+
 AT_CHECK_OUTPUT([foo.yy], [],
                [--defines=foo.hpp -o foo.c++],
                [foo.c++ foo.hpp])
@@ -147,14 +151,14 @@ AT_CHECK_OUTPUT([foo.yy], [],
 # Do not generate code when there are early errors (even warnings as
 # errors).
 AT_CHECK_OUTPUT([foo.y], [%type <foo> useless],
-                [--defines --graph --xml --report=all -Wall -Werror],
+                [--header --graph --xml --report=all -Wall -Werror],
                [foo.dot foo.output foo.xml],
                [1])

 # Do not generate code when there are late errors (even warnings as
 # errors).
 AT_CHECK_OUTPUT([foo.y], [%define useless],
-                [--defines --graph --xml --report=all -Wall -Werror],
+                [--header --graph --xml --report=all -Wall -Werror],
                [foo.dot foo.output foo.xml],
                [1])

@@ -284,7 +288,7 @@ AT_DATA_GRAMMAR([glr.y],
 %%
 start: {};
 ]])
-AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --defines="AS_ESCAPE([$1.h])" glr.y])
+AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --header="AS_ESCAPE([$1.h])" glr.y])
 AT_CHECK([ls "AS_ESCAPE([$1.c])" "AS_ESCAPE([$1.h])"], [], [ignore])
 AT_COMPILE([glr.o], [-c "AS_ESCAPE([$1.c])"])
 $2
@@ -295,7 +299,7 @@ AT_DATA_GRAMMAR([cxx.y],
 %%
 start: {};
 ]])
-AT_BISON_CHECK([-o "AS_ESCAPE([$1.cc])" --defines="AS_ESCAPE([$1.hh])" cxx.y])
+AT_BISON_CHECK([-o "AS_ESCAPE([$1.cc])" --header="AS_ESCAPE([$1.hh])" cxx.y])
 AT_CHECK([ls "AS_ESCAPE([$1.cc])" "AS_ESCAPE([$1.hh])"], [], [ignore])
 AT_COMPILE_CXX([cxx.o], [-c "AS_ESCAPE([$1.cc])"])
 $2