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59 lines
1.7 KiB
Plaintext
59 lines
1.7 KiB
Plaintext
# -*- Autoconf -*-
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# Sanity-test a C++ compiler.
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#
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# Copyright (C) 2004, 2006 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301 USA
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# Written by Paul Eggert.
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AC_DEFUN([BISON_TEST_FOR_WORKING_CXX_COMPILER],
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[
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AC_CACHE_CHECK([whether $CXX builds executables that work],
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bison_cv_cxx_works,
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[AC_LANG_PUSH([C++])
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AC_RUN_IFELSE(
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[AC_LANG_PROGRAM(
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[#include <cstdlib>
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#include <iostream>
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#include <map>
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#include <string>
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using namespace std;],
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[std::cerr << "";
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cout << "";
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typedef std::pair<unsigned int, int> uipair;
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std::map<unsigned int, int> m;
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std::map<unsigned int, int>::iterator i;
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m.insert (uipair (4, -4));
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for (i = m.begin (); i != m.end (); ++i)
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if (i->first != 4)
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return 1;])],
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[bison_cv_cxx_works=yes],
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[bison_cv_cxx_works=no],
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[bison_cv_cxx_works=cross])
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AC_LANG_POP([C++])])
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case $bison_cv_cxx_works in
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yes)
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BISON_CXX_WORKS=':';;
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no | cross)
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BISON_CXX_WORKS='exit 77';;
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esac
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AC_SUBST([BISON_CXX_WORKS])
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AM_CONDITIONAL(BISON_CXX_WORKS, test $bison_cv_cxx_works = yes)
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])
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