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Akim Demaille 5d9ccd5a87 yacc: declare yyerror/yylex only when POSIXLY_CORRECT 
The recent changes to comply with POSIX are breaking Automake's test
suite.
Reported by Kiyoshi Kanazawa.
<https://lists.gnu.org/r/bug-bison/2021-09/msg00005.html>

To limit the impact of POSIX changes, bind them to $POSIXLY_CORRECT.
Suggested by Karl Berry.
<https://lists.gnu.org/r/bug-bison/2021-09/msg00009.html>

The existing `maintainer-check-posix` Make target checks these
changes.

* src/getargs.h, src/getargs.c (set_yacc): New.
Use it.
* data/skeletons/bison.m4 (b4_posix_if): New.
* data/skeletons/yacc.c (b4_declare_yyerror_and_yylex): Use it.
* doc/bison.texi, tests/local.at: Adjust.
2021-09-11 08:26:10 +02:00
..
.gitignore
traces: display the Bison version
2021-01-30 14:32:00 +01:00
actions.at
tests: rename AT_YACC_IF as AT_YACC_C_IF
2021-08-06 18:02:23 +02:00
atlocal.in
build: check for C++ 20 and 2b
2021-08-12 09:07:36 +02:00
bison.in
tests: don't postprocess stderr with sed
2021-08-29 09:50:02 +02:00
c++.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
calc.at
yacc: declare yyerror/yylex only when POSIXLY_CORRECT
2021-09-11 08:26:10 +02:00
conflicts.at
tests: rename AT_YACC_IF as AT_YACC_C_IF
2021-08-06 18:02:23 +02:00
counterexample.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
cxx-type.at
style: rename stmtMerge as stmt_merge
2021-08-29 16:25:38 +02:00
d.at
Update URLs to prefer https: to http:
2021-01-29 13:48:43 -08:00
diagnostics.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
existing.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
glr-regression.at
style: tests: rebox comments
2021-08-04 09:14:49 +02:00
headers.at
c++: issue a compile-time warning when #define YYSTYPE is used
2021-02-01 05:54:06 +01:00
input.at
tests: factor iterating over skeletons
2021-08-07 12:53:19 +02:00
java.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
javapush.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
linear
package: bump copyrights to 2021
2021-01-23 15:02:49 +01:00
local.at
yacc: declare yyerror/yylex only when POSIXLY_CORRECT
2021-09-11 08:26:10 +02:00
local.mk
tests: run the main test suite on "make check"
2021-01-30 09:06:36 +01:00
m4.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
named-refs.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
output.at
glr2.cc: require C++11
2021-08-19 08:21:22 +02:00
push.at
yacc: fix push parser
2021-03-07 18:41:38 +01:00
README.md
tests: be robust to old versions of xlstproc
2021-08-12 08:16:08 +02:00
reduce.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
regression.at
tests: check symbol/token renumbering
2021-08-11 18:00:38 +02:00
report.at
tests: disable "Multistart reports"
2021-09-02 07:27:42 +02:00
scanner.at
tests: factor iterating over skeletons
2021-08-07 12:53:19 +02:00
sets.at
traces: display the Bison version
2021-01-30 14:32:00 +01:00
skeletons.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
synclines.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
testsuite.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
testsuite.h
tests: simplify prologue
2019-11-03 10:32:22 +01:00
torture.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00
types.at
Update URLs to prefer https: to http:
2021-01-30 07:32:03 +01:00

README.md

AT_BISON_OPTION_PUSHDEFS/AT_BISON_OPTION_POPDEFS

These two macros must be given the (main) directives so that they define a number of other macros to:

  • what the language is (so what compiler tool chain to use, what definition of yylex/yyerror, etc.)
  • what skeleton is used

Keywords

The following keywords are used to label tests (with AT_KEYWORDS(category)). Please follow them and avoid creating synonyms.

  • action
  • api.value.type
  • c++: c++ language
  • cex: counterexamples.
  • d: d language
  • deprec: deprecated features.
  • diagnostics
  • glr
  • graph
  • html: html reports
  • java
  • lac
  • %merge
  • multistart
  • push
  • report: for automaton dumps
  • %union
  • variant
  • yacc: POSIX yacc (%yacc)

Calculator

The grammar features several special directives:

  • !! YYERROR
  • !+ YYACCEPT
  • !- YYABORT
  • !* YYNOMEM
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