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annotate m4/ftello.m4 @ 10638:28050ad34088

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Fix getaddrinfo emulation for systems with struct sockaddr.sa_len. 2008-10-13 Paolo Bonzini <bonzini@gnu.org> fix getaddrinfo emulation for systems with struct sockaddr.sa_len * m4/getaddrinfo.m4 (gl_PREREQ_GETADDRINFO): Detect struct sockaddr.sa_len. * lib/getaddrinfo.c (getaddrinfo): Set it if appropriate.
author Paolo Bonzini <bonzini@gnu.org>
date Mon, 13 Oct 2008 19:49:44 +0200
parents 4405a3880f94
children e8d2c6fc33ad
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4405a3880f94 Likewise for ftello.
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1 # ftello.m4 serial 4
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2 dnl Copyright (C) 2007, 2008 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_FUNC_FTELLO],
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8 [
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9 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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10 AC_REQUIRE([AC_PROG_CC])
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11 AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
9771
4405a3880f94 Likewise for ftello.
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12
4405a3880f94 Likewise for ftello.
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13 dnl Persuade glibc <stdio.h> to declare fseeko().
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14 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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15
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16 AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello],
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17 [
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18 AC_TRY_LINK([#include <stdio.h>], [ftello (stdin);],
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19 [gl_cv_func_ftello=yes], [gl_cv_func_ftello=no])
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20 ])
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21 if test $gl_cv_func_ftello = no; then
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22 HAVE_FTELLO=0
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23 gl_REPLACE_FTELLO
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24 elif test $gl_cv_var_stdin_large_offset = no; then
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25 gl_REPLACE_FTELLO
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26 fi
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27 ])
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28
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29 AC_DEFUN([gl_REPLACE_FTELLO],
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30 [
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31 AC_LIBOBJ([ftello])
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32 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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33 REPLACE_FTELLO=1
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34 ])