annotate config/glibc21.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
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1 # glibc21.m4 serial 2 (fileutils-4.1.3, gettext-0.10.40)
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2 dnl Copyright (C) 2000-2002 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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4 dnl General Public License. As a special exception to the GNU General
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5 dnl Public License, this file may be distributed as part of a program
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6 dnl that contains a configuration script generated by Autoconf, under
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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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9 # Test for the GNU C Library, version 2.1 or newer.
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10 # From Bruno Haible.
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11
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12 AC_DEFUN([jm_GLIBC21],
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13 [
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14 AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
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15 ac_cv_gnu_library_2_1,
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16 [AC_EGREP_CPP([Lucky GNU user],
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17 [
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18 #include <features.h>
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19 #ifdef __GNU_LIBRARY__
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20 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
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21 Lucky GNU user
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22 #endif
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23 #endif
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24 ],
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25 ac_cv_gnu_library_2_1=yes,
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26 ac_cv_gnu_library_2_1=no)
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27 ]
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28 )
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29 AC_SUBST(GLIBC21)
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30 GLIBC21="$ac_cv_gnu_library_2_1"
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31 ]
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32 )