Mercurial > hg > octave-lyh
comparison m4/acinclude.m4 @ 16174:39096b290a2f
check syntax used to enable bison push/pull parser
* acinclude.m4 (OCTAVE_PROG_BISON): Check for syntax used to enable
push/pull parser.
* common.mk (BISON_PUSH_PULL_DECL_STYLE): New variable.
* libinterp/Makefile.am (BUILT_DISTFILES): Include oct-parse.yy in the
list.
(EXTRA_DIST): Include oct-pase.in.yy in the list.
(ULT_DIST_SRC): New variable.
(SRC_DEF_FILES, TST_FILES_SRC): Use $(ULT_DIST_SRC) instead of
$(DIST_SRC).
* find-defun-files.sh: Transform .in.yy instead of .yy.
* libinterp/parse-tree/module.mk (parse-tree/oct-parse.yy):
New target and rule to substitute push-pull decl.
* oct-parse.in.yy: Rename from oct-parse.yy
Substitute %PUSH_PULL_DECL%.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Sat, 02 Mar 2013 12:26:42 -0500 |
| parents | b309a5da17f5 |
| children | 7ce484126bb2 |
comparison
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| 16173:40a9a4e0d12a | 16174:39096b290a2f |
|---|---|
| 1401 dnl | 1401 dnl |
| 1402 dnl Check for bison. | 1402 dnl Check for bison. |
| 1403 dnl | 1403 dnl |
| 1404 AC_DEFUN([OCTAVE_PROG_BISON], [ | 1404 AC_DEFUN([OCTAVE_PROG_BISON], [ |
| 1405 AC_PROG_YACC | 1405 AC_PROG_YACC |
| 1406 case "$YACC" in | |
| 1407 bison*) | |
| 1408 AC_CACHE_CHECK([syntax of bison push/pull declaration], | |
| 1409 [octave_cv_bison_push_pull_decl_style], [ | |
| 1410 style="dash underscore" | |
| 1411 quote="noquote quote" | |
| 1412 for s in $style; do | |
| 1413 for q in $quote; do | |
| 1414 if test $s = "dash"; then | |
| 1415 def="%define api.push-pull" | |
| 1416 else | |
| 1417 def="%define api.push_pull" | |
| 1418 fi | |
| 1419 if test $q = "quote"; then | |
| 1420 def="$def \"both\"" | |
| 1421 else | |
| 1422 def="$def both" | |
| 1423 fi | |
| 1424 cat << EOF > conftest.yy | |
| 1425 $def | |
| 1426 %start input | |
| 1427 %% | |
| 1428 input:; | |
| 1429 %% | |
| 1430 EOF | |
| 1431 $YACC conftest.yy > /dev/null 2>&1 | |
| 1432 ac_status=$? | |
| 1433 if test $ac_status -eq 0; then | |
| 1434 if test $q = noquote; then | |
| 1435 q= | |
| 1436 fi | |
| 1437 octave_cv_bison_push_pull_decl_style="$s $q" | |
| 1438 break | |
| 1439 fi | |
| 1440 done | |
| 1441 if test $ac_status -eq 0; then | |
| 1442 break | |
| 1443 fi | |
| 1444 done | |
| 1445 rm -f conftest.yy y.tab.h | |
| 1446 ]) | |
| 1447 ;; | |
| 1448 esac | |
| 1449 | |
| 1450 AC_SUBST(BISON_PUSH_PULL_DECL_STYLE, $octave_cv_bison_push_pull_decl_style) | |
| 1451 | |
| 1452 if test -z "$octave_cv_bison_push_pull_decl_style"; then | |
| 1453 YACC= | |
| 1454 warn_bison_push_pull_decl_style=" | |
| 1455 | |
| 1456 I wasn't able to find a suitable style for declaring a push-pull | |
| 1457 parser in a bison input file so I'm disabling bison. | |
| 1458 " | |
| 1459 OCTAVE_CONFIGURE_WARNING([warn_bison_push_pull_decl_style]) | |
| 1460 fi | |
| 1461 | |
| 1406 case "$YACC" in | 1462 case "$YACC" in |
| 1407 bison*) | 1463 bison*) |
| 1408 ;; | 1464 ;; |
| 1409 *) | 1465 *) |
| 1410 YACC='$(top_srcdir)/build-aux/missing bison' | 1466 YACC='$(top_srcdir)/build-aux/missing bison' |