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This allows to pass -Derror_verbose on the command line. Better yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with ERROR_VERBOSE being defined as false or true. * data/bison.m4 (b4_percent_define_if_define): Instead of relying on b4_percent_define_ifdef, for does not check the defined value, but only whether the symbol is defined, rely on b4_percent_define_flag_if, so that a value of "false" is processed as a false. If not defined, define the flag to "false". (b4_error_verbose_if): New. * data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of b4_error_verbose_flag. * src/getargs.h, src/getargs.c (error_verbose_flag): Remove. * src/output.c (prepare): Don't output it. * src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
This package contains the GNU Bison parser generator. See the file INSTALL for generic compilation and installation instructions. See the section FAQ in the documentation (doc/bison.info) for frequently asked questions. The documentation is also available in PDF and HTML, provided you have a recent version of Texinfo installed: run "make pdf" or "make html". Bison requires GNU m4 1.4.6 or later. See: ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz Bison can work with pre-1.4.6 distributions of GNU m4 if they are sufficiently patched, but if you encounter a bug with an older distribution and report a bug we will probably suggest that you upgrade to 1.4.6 as the first step in trying to fix it. Please send bug reports to <bug-bison@gnu.org>. Please include the version number from `bison --version', and a complete, self-contained test case in each bug report. If you have questions about using Bison and the documentation does not answer them, please send mail to <help-bison@gnu.org>. ----- Copyright (C) 1992, 1998, 1999, 2003, 2004, 2005, 2008 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.