# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-# We want a recent Autotest.
m4_version_prereq([2.58])
+# m4_null_if(VAL, IF-TRUE, IF-FALSE)
+# ----------------------------------
+# If VAL evaluates to empty or 0, run IF-TRUE, otherwise IF-FALSE.
+m4_define([m4_null_if],
+[m4_case(m4_quote($1),
+ [0], [$2],
+ [], [$2],
+ [$3])])
+
## ------------- ##
## Basic tests. ##
## ------------- ##
])])
+# AT_SAVE_SPECIAL_FILES / AT_RESTORE_SPECIAL_FILES
+# ------------------------------------------------
+# Don't interfere with caller's files.
+m4_divert_text([PREPARE_TESTS],
+[at_save_special_files ()
+{
+ for at_save_file in stderr experr expout
+ do
+ test ! -f at-bison-check-$at_save_file.bak ||
+ as_fn_error 1 "fatal error: back-up on top of a back-up"
+ test ! -f $at_save_file || mv $at_save_file at-bison-check-$at_save_file.bak
+ done
+}
+
+at_restore_special_files ()
+{
+ for at_save_file in stderr experr expout
+ do
+ test ! -f at-bison-check-$at_save_file.bak ||
+ mv at-bison-check-$at_save_file.bak $at_save_file
+ done
+}
+])
+
+m4_define([AT_SAVE_SPECIAL_FILES], [at_save_special_files])
+m4_define([AT_RESTORE_SPECIAL_FILES], [at_restore_special_files])
+
+
+
## ------------------------------- ##
## Macros decoding Bison options. ##
## ------------------------------- ##
# AT_BISON_OPTION_PUSHDEFS([BISON-OPTIONS])
# -----------------------------------------
m4_define([AT_BISON_OPTION_PUSHDEFS],
-[_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])
+[m4_divert_text([KILL],
+ [_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])])
# _AT_BISON_OPTION_PUSHDEFS($1, $2, [BISON-OPTIONS])
# --------------------------------------------------
# This macro works around the impossibility to define macros
# inside macros, because issuing `[$1]' is not possible in M4 :(.
-# This sucks hard, GNU M4 should really provide M5 like $$1.
+# This sucks hard, GNU M4 should really provide M5-like $$1.
m4_define([_AT_BISON_OPTION_PUSHDEFS],
[m4_if([$1$2], $[1]$[2], [],
[m4_fatal([$0: Invalid arguments: $@])])dnl
[m4_bmatch([$3], [%language "[Cc]\+\+"\|%skeleton "[a-z0-9]+\.cc"], [$1], [$2])])
m4_pushdef([AT_SKEL_JAVA_IF],
[m4_bmatch([$3], [%language "[Jj][Aa][Vv][Aa]"\|%skeleton "[a-z0-9]+\.java"], [$1], [$2])])
+m4_pushdef([AT_LANG],
+[AT_SKEL_JAVA_IF([java],
+ [AT_SKEL_CC_IF([c++],
+ [c])])])
m4_pushdef([AT_GLR_IF],
-[m4_bmatch([$3], [%glr-parser\|%skeleton "glr\.], [$1], [$2])])
+[m4_bmatch([$3], [%glr-parser\|%skeleton "glr\..*"], [$1], [$2])])
m4_pushdef([AT_LALR1_CC_IF],
[AT_SKEL_CC_IF([AT_GLR_IF([$2], [$1])], [$2])])
m4_pushdef([AT_GLR_CC_IF],
m4_pushdef([AT_GLR_OR_PARAM_IF],
[m4_bmatch([$3], [%glr-parser\|%parse-param], [$1], [$2])])
m4_pushdef([AT_NAME_PREFIX],
-[m4_bmatch([$3], [%name-prefix ".*"],
- [m4_bregexp([$3], [name-prefix "\([^"]*\)"], [\1])],
+[m4_bmatch([$3], [\(%define api\.prefix\|%name-prefix\) ".*"],
+ [m4_bregexp([$3], [\(%define api\.prefix\|%name-prefix\) "\([^""]*\)"], [\2])],
+ [yy])])
+m4_pushdef([AT_TOKEN_PREFIX],
+[m4_bmatch([$3], [%define api.tokens.prefix ".*"],
+ [m4_bregexp([$3], [%define api.tokens.prefix "\(.*\)"], [\1])])])
+m4_pushdef([AT_API_prefix],
+[m4_bmatch([$3], [%define api\.prefix ".*"],
+ [m4_bregexp([$3], [%define api\.prefix "\([^""]*\)"], [\1])],
[yy])])
+m4_pushdef([AT_API_PREFIX],
+[m4_toupper(AT_API_prefix)])
# yyerror receives the location if %location & %pure & (%glr or %parse-param).
m4_pushdef([AT_YYERROR_ARG_LOC_IF],
[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])],
- [$2])])
+ [$2])])
# yyerror always sees the locations (when activated), except if
# (yacc & pure & !param). FIXME: This is wrong. See the manual.
m4_pushdef([AT_YYERROR_SEES_LOC_IF],
[AT_LOCATION_IF([AT_YACC_IF([AT_PURE_IF([AT_PARAM_IF([$1], [$2])],
- [$1])],
- [$1])],
- [$2])])
+ [$1])],
+ [$1])],
+ [$2])])
# The interface is pure: either because %define api.pure, or because we
# are using the C++ parsers.
m4_pushdef([AT_PURE_LEX_IF],
[AT_PURE_IF([$1],
- [AT_SKEL_CC_IF([$1], [$2])])])
+ [AT_SKEL_CC_IF([$1], [$2])])])
+
+m4_pushdef([AT_YYSTYPE],
+[AT_SKEL_CC_IF([AT_NAME_PREFIX[::parser::semantic_type]],
+ [AT_API_PREFIX[STYPE]])])
+m4_pushdef([AT_YYLTYPE],
+[AT_SKEL_CC_IF([AT_NAME_PREFIX[::parser::location_type]],
+ [AT_API_PREFIX[LTYPE]])])
+
AT_PURE_LEX_IF(
[m4_pushdef([AT_LOC], [(*llocp)])
m4_pushdef([AT_VAL], [(*lvalp)])
- m4_pushdef([AT_LEX_FORMALS],
- [YYSTYPE *lvalp[]AT_LOCATION_IF([, YYLTYPE *llocp])])
- m4_pushdef([AT_LEX_ARGS],
- [lvalp[]AT_LOCATION_IF([, llocp])])
+ m4_pushdef([AT_YYLEX_FORMALS],
+ [AT_YYSTYPE *lvalp[]AT_LOCATION_IF([, AT_YYLTYPE *llocp])])
+ m4_pushdef([AT_YYLEX_ARGS],
+ [lvalp[]AT_LOCATION_IF([, llocp])])
m4_pushdef([AT_USE_LEX_ARGS],
- [(void) lvalp;AT_LOCATION_IF([(void) llocp])])
- m4_pushdef([AT_LEX_PRE_FORMALS],
- [AT_LEX_FORMALS, ])
- m4_pushdef([AT_LEX_PRE_ARGS],
- [AT_LEX_ARGS, ])
+ [(void) lvalp;AT_LOCATION_IF([(void) llocp])])
+ m4_pushdef([AT_YYLEX_PRE_FORMALS],
+ [AT_YYLEX_FORMALS, ])
+ m4_pushdef([AT_YYLEX_PRE_ARGS],
+ [AT_YYLEX_ARGS, ])
],
[m4_pushdef([AT_LOC], [[(]AT_NAME_PREFIX[lloc)]])
m4_pushdef([AT_VAL], [[(]AT_NAME_PREFIX[lval)]])
- m4_pushdef([AT_LEX_FORMALS], [void])
- m4_pushdef([AT_LEX_ARGS], [])
+ m4_pushdef([AT_YYLEX_FORMALS], [void])
+ m4_pushdef([AT_YYLEX_ARGS], [])
m4_pushdef([AT_USE_LEX_ARGS], [])
- m4_pushdef([AT_LEX_PRE_FORMALS], [])
- m4_pushdef([AT_LEX_PRE_ARGS], [])
+ m4_pushdef([AT_YYLEX_PRE_FORMALS], [])
+ m4_pushdef([AT_YYLEX_PRE_ARGS], [])
])
# Handle the different types of location components.
[AT_LOC_PUSHDEF([begin.line], [begin.column], [end.line], [end.column])])],
[AT_LOC_PUSHDEF([first_line], [first_column], [last_line], [last_column])])
+
+AT_GLR_IF([AT_KEYWORDS([glr])])
])# _AT_BISON_OPTION_PUSHDEFS
# AT_BISON_OPTION_POPDEFS
# -----------------------
m4_define([AT_BISON_OPTION_POPDEFS],
-[m4_popdef([AT_LEX_PRE_ARGS])
-m4_popdef([AT_LEX_PRE_FORMALS])
+[m4_divert_text([KILL],
+[m4_popdef([AT_YYLEX_PRE_ARGS])
+m4_popdef([AT_YYLEX_PRE_FORMALS])
m4_popdef([AT_USE_LEX_ARGS])
-m4_popdef([AT_LEX_ARGS])
-m4_popdef([AT_LEX_FORMALS])
+m4_popdef([AT_YYLEX_ARGS])
+m4_popdef([AT_YYLEX_FORMALS])
+m4_popdef([AT_YYLTYPE])
+m4_popdef([AT_YYSTYPE])
m4_popdef([AT_VAL])
m4_popdef([AT_LOC])
m4_popdef([AT_PURE_LEX_IF])
m4_popdef([AT_YYERROR_SEES_LOC_IF])
m4_popdef([AT_YYERROR_ARG_LOC_IF])
+m4_popdef([AT_API_PREFIX])
+m4_popdef([AT_API_prefix])
m4_popdef([AT_NAME_PREFIX])
m4_popdef([AT_GLR_OR_PARAM_IF])
m4_popdef([AT_PURE_AND_LOC_IF])
m4_popdef([AT_YACC_IF])
m4_popdef([AT_GLR_IF])
m4_popdef([AT_SKEL_CC_IF])
+m4_popdef([AT_LANG])
m4_popdef([AT_SKEL_JAVA_IF])
m4_popdef([AT_GLR_CC_IF])
m4_popdef([AT_LALR1_CC_IF])
m4_popdef([AT_DEFINES_IF])
-AT_LOC_POPDEF
+AT_LOC_POPDEF])dnl
])# AT_BISON_OPTION_POPDEFS
$2])
])
+# AT_YYLEX_PROTOTYPE
+# AT_YYLEX_DECLARE_EXTERN
+# AT_YYLEX_DECLARE
+# AT_YYLEX_DEFINE([INPUT], [ACTION])
+# ----------------------------------
+# INPUT can be empty, or in double quotes, or a list (in braces).
+# ACTION may compute yylval for instance, using "res" as token type,
+# and "toknum" as the number of calls to yylex (starting at 0).
+m4_define([AT_YYLEX_PROTOTYPE],
+[int AT_NAME_PREFIX[]lex (]AT_YYLEX_FORMALS[)[]dnl
+])
+
+m4_define([AT_YYLEX_DECLARE_EXTERN],
+[AT_YYLEX_PROTOTYPE;dnl
+])
+
+m4_define([AT_YYLEX_DECLARE],
+[static AT_YYLEX_DECLARE_EXTERN[]dnl
+])
+
+m4_define([AT_YYLEX_DEFINE],
+[[#include <assert.h>
+static
+]AT_YYLEX_PROTOTYPE[
+{
+ ]m4_bmatch([$1], [^\(".*"\)?$],
+ [[static char const input[] = ]m4_default([$1], [""])],
+ [[static int const input[] = ]$1])[;
+ static size_t toknum = 0;
+ int res;
+ ]AT_USE_LEX_ARGS[;
+ assert (toknum < sizeof input / sizeof input[0]);
+ res = input[toknum++];
+ ]$2[;]AT_LOCATION_IF([[
+ ]AT_LOC_FIRST_LINE[ = ]AT_LOC_LAST_LINE[ = 1;
+ ]AT_LOC_FIRST_COLUMN[ = ]AT_LOC_LAST_COLUMN[ = toknum;]])[
+ return res;
+}]dnl
+])
+
+# AT_YYERROR_PROTOTYPE
+# AT_YYERROR_DECLARE_EXTERN
+# AT_YYERROR_DECLARE
+# AT_YYERROR_DEFINE
+# -------------------------
+# Must be called inside a AT_BISON_OPTION_PUSHDEFS/POPDEFS pair.
+m4_define([AT_YYERROR_FORMALS],
+[m4_case(AT_LANG,
+[c], [AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])[const char *msg]])[]dnl
+])
+
+m4_define([AT_YYERROR_PROTOTYPE],
+[m4_case(AT_LANG,
+[c], [[void ]AT_NAME_PREFIX[error (]AT_YYERROR_FORMALS[)]])[]dnl
+])
+
+m4_define([AT_YYERROR_DECLARE_EXTERN],
+[m4_case(AT_LANG,
+[c], [AT_YYERROR_PROTOTYPE;])[]dnl
+])
+
+m4_define([AT_YYERROR_DECLARE],
+[m4_case(AT_LANG,
+[c], [static AT_YYERROR_DECLARE_EXTERN])[]dnl
+])
+
+m4_define([AT_YYERROR_DEFINE],
+[m4_case(AT_LANG,
+[c], [[#include <stdio.h>
+/* A C error reporting function. */
+static
+]AT_YYERROR_PROTOTYPE[
+{
+]AT_YYERROR_SEES_LOC_IF([[
+ fprintf (stderr, "%d.%d",
+ ]AT_LOC_FIRST_LINE[, ]AT_LOC_FIRST_COLUMN[);
+ if (]AT_LOC_FIRST_LINE[ != ]AT_LOC_LAST_LINE[)
+ fprintf (stderr, "-%d.%d",
+ ]AT_LOC_LAST_LINE[, ]AT_LOC_LAST_COLUMN[ - 1);
+ else if (]AT_LOC_FIRST_COLUMN[ != ]AT_LOC_LAST_COLUMN[ - 1)
+ fprintf (stderr, "-%d",
+ ]AT_LOC_LAST_COLUMN[ - 1);
+ fprintf (stderr, ": ");]])[
+ fprintf (stderr, "%s\n", msg);
+}]],
+[c++], [[/* A C++ error reporting function. */
+void
+]AT_NAME_PREFIX[::parser::error (]AT_LOCATION_IF([[const location_type& l, ]])[const std::string& m)
+{ std::cerr << ]AT_LOCATION_IF([l << ": " << ])[m << std::endl;
+}]],
+[java], [AT_LOCATION_IF([[public void yyerror (Calc.Location l, String s)
+{
+ if (l == null)
+ System.err.println (s);
+ else
+ System.err.println (l + ": " + s);
+ }
+]], [[
+ public void yyerror (String s)
+ {
+ System.err.println (s);
+}]])])dnl
+])
+
+
+## --------------- ##
+## Running Bison. ##
+## --------------- ##
+
# AT_BISON_CHECK(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -------------------------------------------------
+# High-level routine that may call bison several times, under different
+# conditions.
+#
# Check Bison by invoking `bison BISON_ARGS'. BISON_ARGS should not contain
# shell constructs (such as redirection or pipes) that would prevent
# appending additional command-line arguments for bison. OTHER_AT_CHECK_ARGS
#
# 4. If stderr contains a warning, -Wnone and --warnings=none suppress it.
m4_define([AT_BISON_CHECK],
-[m4_if(m4_quote($2), [0], [AT_BISON_CHECK_XML($@)],
- m4_quote($2), [], [AT_BISON_CHECK_XML($@)])
+[m4_null_if([$2], [AT_BISON_CHECK_XML($@)])
AT_BISON_CHECK_NO_XML($@)])
m4_define([AT_BISON_WERROR_MSG],
[[bison: warnings being treated as errors]])
-# AT_BISON_CHECK_NO_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
-# --------------------------------------------------------
-# Same as AT_BISON_CHECK except don't perform XML/XSLT checks. This is useful
-# when a tortured grammar's XML is known to be too large for xsltproc to
-# handle.
-m4_define([AT_BISON_CHECK_NO_XML],
-[AT_CHECK(m4_if(m4_quote($2), [0], [], m4_quote($2), [], [],
- [AT_QUELL_VALGRIND ])[[bison ]]$@)
-m4_if(m4_bregexp([$4], [: warning: ]), [-1], [],
- m4_quote(m4_if(m4_quote($2), [], [0], [$2])), [0], [[
- # Defining POSIXLY_CORRECT causes bison to complain if options
+
+# AT_BISON_CHECK_(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
+# --------------------------------------------------
+# Low-level macro to run bison once.
+m4_define([AT_BISON_CHECK_],
+[AT_CHECK(AT_QUELL_VALGRIND[[ bison ]]$@)])
+
+
+# AT_BISON_CHECK_WARNINGS(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
+# ----------------------------------------------------------
+# Check that warnings (if some are expected) are correctly
+# turned into errors with -Werror, etc.
+m4_define([AT_BISON_CHECK_WARNINGS],
+[m4_if(m4_bregexp([$4], [: warning: ]), [-1], [],
+ [m4_null_if([$2], [AT_BISON_CHECK_WARNINGS_($@)])])])
+
+m4_define([AT_BISON_CHECK_WARNINGS_],
+[[# Defining POSIXLY_CORRECT causes bison to complain if options
# are added after the grammar file name, so skip these checks
# in that case.
if test -z "${POSIXLY_CORRECT+set}"; then
- # Don't interfere with caller's files.
- if test -f stderr; then mv stderr at-bison-check-stderr.bak; fi
- if test -f experr; then mv experr at-bison-check-experr.bak; fi
- if test -f expout; then mv expout at-bison-check-expout.bak; fi
+ ]AT_SAVE_SPECIAL_FILES[
# To avoid expanding it repeatedly, store specified stdout.
]AT_DATA([expout], [$3])[
# Run with -Werror.
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ -Werror]],
- [[1]], [expout], [stderr])[
+ ]AT_BISON_CHECK_([$1[ -Werror]], [[1]], [expout], [stderr])[
# Build expected stderr up to and including the "warnings being
# treated as errors" message.
# Now check --warnings=error.
cp stderr experr
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ --warnings=error]],
- [[1]], [expout], [experr])[
+ ]AT_BISON_CHECK_([$1[ --warnings=error]], [[1]], [expout], [experr])[
# Now check -Wnone and --warnings=none by making sure that
# -Werror doesn't change the exit status when -Wnone or
# --warnings=none is specified.
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ -Wnone -Werror]],
- [[0]], [expout])[
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ --warnings=none \
- -Werror]], [[0]], [expout])[
-
- # Restore caller's files.
- if test -f at-bison-check-expout.bak; then
- mv at-bison-check-expout.bak expout
- fi
- if test -f at-bison-check-experr.bak; then
- mv at-bison-check-experr.bak experr
- fi
- if test -f at-bison-check-stderr.bak; then
- mv at-bison-check-stderr.bak stderr
- fi
- fi
- ]])
+ ]AT_BISON_CHECK_([$1[ -Wnone -Werror]], [[0]], [expout])[
+ ]AT_BISON_CHECK_([$1[ --warnings=none -Werror]], [[0]], [expout])[
+
+ ]AT_RESTORE_SPECIAL_FILES[
+fi]dnl
])
+# AT_BISON_CHECK_NO_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
+# --------------------------------------------------------
+# Same as AT_BISON_CHECK except don't perform XML/XSLT checks. This is useful
+# when a tortured grammar's XML is known to be too large for xsltproc to
+# handle.
+m4_define([AT_BISON_CHECK_NO_XML],
+[AT_CHECK(m4_null_if([$2], [], [AT_QUELL_VALGRIND ])[[bison ]]$@)
+AT_BISON_CHECK_WARNINGS($@)])
+
# AT_BISON_CHECK_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -----------------------------------------------------
# Run AT_BISON_CHECK's XML/XSLT checks if $BISON_TEST_XML=1 and $XSLTPROC is
# defined. It doesn't make sense to invoke this macro if Bison is expected to
# have a non-zero exit status.
m4_define([AT_BISON_CHECK_XML],
-[[if test x"$BISON_TEST_XML" = x1 && test x"$XSLTPROC" != x""; then
- mkdir xml-tests]
+[[if test x"$BISON_TEST_XML" = x1 && test x"$XSLTPROC" != x""; then]
+ AT_SAVE_SPECIAL_FILES
+ [mkdir xml-tests]
m4_pushdef([AT_BISON_ARGS],
[m4_bpatsubsts([[$1]],
[--report(-file)?=[^][ ]*], [],
[--xml=[^][ ]*], [])])dnl
# Don't combine these Bison invocations since we want to be sure that
# --report=all isn't required to get the full XML file.
- AT_CHECK([[bison --report=all --report-file=xml-tests/test.output \
+ AT_BISON_CHECK_([[--report=all --report-file=xml-tests/test.output \
--graph=xml-tests/test.dot ]]AT_BISON_ARGS,
[[0]], [ignore], [ignore])
- AT_CHECK([[bison --xml=xml-tests/test.xml ]]AT_BISON_ARGS,
+ AT_BISON_CHECK_([[--xml=xml-tests/test.xml ]]AT_BISON_ARGS,
[[0]], [ignore], [ignore])
m4_popdef([AT_BISON_ARGS])dnl
[cp xml-tests/test.output expout]
AT_CHECK([[$XSLTPROC \
`]]AT_QUELL_VALGRIND[[ bison --print-datadir`/xslt/xml2dot.xsl \
xml-tests/test.xml]], [[0]], [expout])
- [rm -rf xml-tests expout
-fi]])
+ [rm -rf xml-tests expout]
+ AT_RESTORE_SPECIAL_FILES
+[fi]])
# AT_QUELL_VALGRIND
# -----------------
m4_define([AT_QUELL_VALGRIND],
[[[VALGRIND_OPTS="$VALGRIND_OPTS --leak-check=summary --show-reachable=no"; export VALGRIND_OPTS;]]])
+
+
## ------------------------ ##
## Compiling C, C++ Files. ##
## ------------------------ ##
# AT_COMPILE(OUTPUT, [SOURCES = OUTPUT.c])
# ----------------------------------------
-# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
-# assume that we are linking too; this is a hack.
+# Compile SOURCES into OUTPUT.
+#
+# If OUTPUT does not contain '.', assume that we are linking too,
+# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
+# with trailing .o removed, and ".c" appended.
m4_define([AT_COMPILE],
-[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.c])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
- 0, [ignore], [ignore])])
+[AT_CHECK(m4_join([ ],
+ [$CC $CFLAGS $CPPFLAGS],
+ [m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
+ [-o $1],
+ [m4_default([$2], [m4_bpatsubst([$1], [\.o$]).c])],
+ [m4_bmatch([$1], [[.]], [], [$LIBS])]),
+ 0, [ignore], [ignore])])
# AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc])
-# --------------------------------------------
-# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
-# assume that we are linking too; this is a hack.
-# If the C++ compiler does not work, ignore the test.
+# ---------------------------------------------
+# Compile SOURCES into OUTPUT. If the C++ compiler does not work,
+# ignore the test.
+#
+# 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.
m4_define([AT_COMPILE_CXX],
[AT_KEYWORDS(c++)
AT_CHECK([$BISON_CXX_WORKS], 0, ignore, ignore)
-AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.cc])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
- 0, [ignore], [ignore])])
+AT_CHECK(m4_join([ ],
+ [$CXX $CXXFLAGS $CPPFLAGS],
+ [m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
+ [-o $1],
+ [m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])],
+ [m4_bmatch([$1], [[.]], [], [$LIBS])]),
+ 0, [ignore], [ignore])])
# AT_JAVA_COMPILE(SOURCES)
# ------------------------
# is not installed.
m4_define([AT_JAVA_COMPILE],
[AT_KEYWORDS(java)
-AT_CHECK([[test -n "$CONF_JAVA" || exit 77
- test -n "$CONF_JAVAC" || exit 77]])
+AT_SKIP_IF([[test -z "$CONF_JAVAC"]])
+AT_SKIP_IF([[test -z "$CONF_JAVA"]])
AT_CHECK([[$SHELL ../../../javacomp.sh ]$1],
[[0]], [ignore], [ignore])])
-# AT_FULL_COMPILE(OUTPUT, [OTHER])
-# --------------------------------
+# AT_LANG_COMPILE(OUTPUT, [SOURCES = OUTPUT.c]
+# --------------------------------------------
+# Compile SOURCES into OUTPUT. Skip if compiler does not work.
+#
+# 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 ".c"/".cc" appended.
+m4_define([AT_LANG_COMPILE],
+[m4_case(AT_LANG,
+[c], [AT_COMPILE([$1], [$2])],
+[c++], [AT_COMPILE_CXX([$1], [$2])],
+[java], [AT_JAVA_COMPILE([$1.java], [$2])],
+ [m4_fatal([unknown language: ]m4_defn([AT_LANG]))])[]dnl
+])
+
+# AT_FULL_COMPILE(OUTPUT, [OTHER1], [OTHER2])
+# -------------------------------------------
# Compile OUTPUT.y to OUTPUT.c, OUTPUT.cc, or OUTPUT.java, and then
# compile it to OUTPUT or OUTPUT.class. If OTHER is specified, compile
# OUTPUT-OTHER.c, OUTPUT-OTHER.cc, or OUTPUT-OTHER.java to OUTPUT or
# OUTPUT.java along with it. Relies on AT_SKEL_CC_IF and
# AT_SKEL_JAVA_IF.
-m4_define([AT_FULL_COMPILE], [
- AT_SKEL_JAVA_IF([
- AT_BISON_CHECK([[-o ]$1[.java ]$1[.y]])
- AT_JAVA_COMPILE([$1[.java]]m4_ifval($2,
- [[$1[.java ]$1[-]$2[.java]]]))
- ], [
- AT_SKEL_CC_IF([
- AT_BISON_CHECK([[-o ]$1[.cc ]$1[.y]])
- AT_COMPILE_CXX([$1]m4_ifval($2, [, [$1[.cc ]$1[-]$2[.cc]]]))
- ], [
- AT_BISON_CHECK([[-o ]$1[.c ]$1[.y]])
- AT_COMPILE([$1]m4_ifval($2, [, [$1[.c ]$1[-]$2[.c]]]))
- ])
- ])
+m4_define([AT_FULL_COMPILE],
+[m4_case(AT_LANG,
+[java],
+ [AT_BISON_CHECK([-o $1.java $1.y])
+ AT_LANG_COMPILE([$1],
+ m4_join([ ],
+ [$1.java],
+ m4_ifval($2, [[$1-$2.java]]),
+ m4_ifval($3, [[$1-$3.java]])))],
+[c++],
+ [AT_BISON_CHECK([-o $1.cc $1.y])
+ AT_LANG_COMPILE([$1],
+ m4_join([ ],
+ [$1.cc],
+ m4_ifval($2, [[$1-$2.cc]]),
+ m4_ifval($3, [[$1-$3.cc]])))],
+[c],
+ [AT_BISON_CHECK([-o $1.c $1.y])
+ AT_LANG_COMPILE([$1],
+ m4_join([ ],
+ [$1.c],
+ m4_ifval($2, [[$1-$2.c]]),
+ m4_ifval($3, [[$1-$3.c]])))])
])
[m4_pushdef([AT_COND_CASE], [m4_case([$2], $][@)])
AT_SETUP([$1])
-
+AT_BISON_OPTION_PUSHDEFS([$4])
AT_DATA_GRAMMAR([[input.y]],
[[%code {
#include <stdio.h>
- static void yyerror (char const *msg);
- static int yylex (void);
+ ]AT_YYERROR_DECLARE[
+ ]AT_YYLEX_DECLARE[
}
]$4[
]$5[
%%
-
-static void
-yyerror (char const *msg)
-{
- fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
static int
yylex (void)
{
# In some versions of Autoconf, AT_CHECK invokes AS_ESCAPE before
# expanding macros, so it corrupts some special characters in the
# macros. To avoid this, expand now and pass it the result with proper
-# string quotation. Assume args 7 thru 12 expand to properly quoted
+# string quotation. Assume args 7 through 12 expand to properly quoted
# strings.
m4_if(m4_index(m4_quote($3), [no-xml]), -1,
m4_ifval([$11], [m4_dquote($11)]),
m4_ifval([$12], [m4_dquote($12)]))
+AT_BISON_OPTION_POPDEFS
AT_CLEANUP
m4_popdef([AT_COND_CASE])])
projects / bison.git / blobdiff