Mercurial > hg > CbC > CbC_gcc

annotate config/ulonglong.m4 @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents a06113de4d67
children
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 # ulonglong.m4 serial 2 (fileutils-4.0.32, gettext-0.10.40)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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2 dnl Copyright (C) 1999-2002 Free Software Foundation, Inc.
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3 dnl This file is free software, distributed under the terms of the GNU
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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4 dnl General Public License. As a special exception to the GNU General
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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5 dnl Public License, this file may be distributed as part of a program
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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6 dnl that contains a configuration script generated by Autoconf, under
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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7 dnl the same distribution terms as the rest of that program.
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8
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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9 dnl From Paul Eggert.
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10
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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11 AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG],
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12 [
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13 AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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14 [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;],
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15 [unsigned long long ullmax = (unsigned long long) -1;
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16 return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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17 ac_cv_type_unsigned_long_long=yes,
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18 ac_cv_type_unsigned_long_long=no)])
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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19 if test $ac_cv_type_unsigned_long_long = yes; then
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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20 AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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21 [Define if you have the unsigned long long type.])
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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22 fi
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23 ])