Files
bison/m4/cxx.m4
Paul Eggert f16b08196c Update to GPLv3.
* doc/gpl-3.0.texi: New file.
* doc/gpl.texi: Remove.
* COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
* Makefile.maint, NEWS, PACKAGING, README, README-alpha:
* README-hacking, TODO, bootstrap, bootstrap.conf:
* configure.ac, data/Makefile.am, data/README, data/bison.m4:
* data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
* data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
* data/lalr1.cc, data/lalr1.java, data/location.cc:
* data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
* djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
* djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
* djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
* djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
* doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
* etc/bench.pl.in, examples/Makefile.am, examples/extexi:
* examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
* lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
* lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
* lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
* lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
* lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
* lib/timevar.c, lib/timevar.def, lib/timevar.h:
* lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
* m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
* m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
* src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
* src/complain.c, src/complain.h, src/conflicts.c:
* src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
* src/files.h, src/flex-scanner.h, src/getargs.c:
* src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
* src/lalr.c, src/lalr.h, src/location.c, src/location.h:
* src/main.c, src/muscle_tab.c, src/muscle_tab.h:
* src/nullable.c, src/nullable.h, src/output.c, src/output.h:
* src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
* src/print.c, src/print.h, src/print_graph.c:
* src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
* src/reduce.h, src/relation.c, src/relation.h:
* src/revision.h, src/scan-code.h, src/scan-code.l:
* src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
* tests/Makefile.am, tests/actions.at, tests/c++.at:
* tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
* tests/existing.at, tests/glr-regression.at:
* tests/headers.at, tests/input.at, tests/java.at:
* tests/local.at, tests/output.at, tests/push.at:
* tests/reduce.at, tests/regression.at, tests/sets.at:
* tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
* tests/torture.at:
Update to GPLv3.
2007-08-15 20:21:33 +00:00

61 lines
1.9 KiB
Plaintext

# -*- Autoconf -*-
# Sanity-test a C++ compiler.
#
# Copyright (C) 2004, 2006 Free Software Foundation, Inc.
#
# 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/>.
# Written by Paul Eggert.
AC_DEFUN([BISON_TEST_FOR_WORKING_CXX_COMPILER],
[
AC_CACHE_CHECK([whether $CXX builds executables that work],
bison_cv_cxx_works,
[AC_LANG_PUSH([C++])
bison_cv_cxx_works=no
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[#include <cstdlib>
#include <iostream>
#include <map>
#include <string>
using namespace std;],
[std::cerr << "";
cout << "";
typedef std::pair<unsigned int, int> uipair;
std::map<unsigned int, int> m;
std::map<unsigned int, int>::iterator i;
m.insert (uipair (4, -4));
for (i = m.begin (); i != m.end (); ++i)
if (i->first != 4)
return 1;])],
[AS_IF([AC_TRY_COMMAND([$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD])],
[AS_IF([test "$cross_compiling" = yes],
[bison_cv_cxx_works=cross],
[AS_IF([AC_TRY_COMMAND(./conftest$ac_exeext)],
[bison_cv_cxx_works=yes])])])
rm -f conftest$ac_exeext])
AC_LANG_POP([C++])])
case $bison_cv_cxx_works in
yes)
BISON_CXX_WORKS=':';;
no | cross)
BISON_CXX_WORKS='exit 77';;
esac
AC_SUBST([BISON_CXX_WORKS])
AM_CONDITIONAL(BISON_CXX_WORKS, test $bison_cv_cxx_works = yes)
])