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julius |
# ulonglong.m4 serial 2 (fileutils-4.0.32, gettext-0.10.40)
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dnl Copyright (C) 1999-2002 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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dnl From Paul Eggert.
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AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG],
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[
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AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
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[AC_TRY_LINK([unsigned long long ull = 1; int i = 63;],
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[unsigned long long ullmax = (unsigned long long) -1;
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return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
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ac_cv_type_unsigned_long_long=yes,
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ac_cv_type_unsigned_long_long=no)])
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if test $ac_cv_type_unsigned_long_long = yes; then
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AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
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[Define if you have the unsigned long long type.])
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fi
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])
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