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annotate m4/ftruncate.m4 @ 17252:7a29ec33d6c5

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author Karl Berry <karl@freefriends.org>
date Tue, 01 Jan 2013 09:17:08 -0800
parents e542fd46ad6f
children 344018b6e5d7
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17188
d7a44f0f7a15 ftruncate, fts, lstat, openat, raise: no 'static inline'
Paul Eggert <eggert@cs.ucla.edu>
parents: 16795
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1 # serial 20
2201
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Jim Meyering <jim@meyering.net>
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2
15739
9f82d16d3139 ftruncate: Un-deprecate, concentrate on Win32 support.
Bruno Haible <bruno@clisp.org>
parents: 14950
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3 # See if we need to emulate a missing ftruncate function using chsize.
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Jim Meyering <jim@meyering.net>
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4
17249
e542fd46ad6f maint: update all copyright year number ranges
Eric Blake <eblake@redhat.com>
parents: 17188
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5 # Copyright (C) 2000-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
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87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
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6 # This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
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7 # gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5016
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8 # with or without modifications, as long as this notice is preserved.
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Paul Eggert <eggert@cs.ucla.edu>
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9
5016
7141ea4946af Change jm_ to gl_ in AC_DEFINE'd names. Update all uses.
Jim Meyering <jim@meyering.net>
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10 AC_DEFUN([gl_FUNC_FTRUNCATE],
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11 [
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51d32a83a7df Move more declarations into <unistd.h>.
Bruno Haible <bruno@clisp.org>
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12 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
51d32a83a7df Move more declarations into <unistd.h>.
Bruno Haible <bruno@clisp.org>
parents: 6927
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13 AC_CHECK_FUNCS_ONCE([ftruncate])
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Bruno Haible <bruno@clisp.org>
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14 if test $ac_cv_func_ftruncate = yes; then
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Bruno Haible <bruno@clisp.org>
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15 m4_ifdef([gl_LARGEFILE], [
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16 AC_REQUIRE([AC_CANONICAL_HOST])
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Bruno Haible <bruno@clisp.org>
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17 case "$host_os" in
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Bruno Haible <bruno@clisp.org>
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18 mingw*)
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Bruno Haible <bruno@clisp.org>
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19 dnl Native Windows, and Large File Support is requested.
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Bruno Haible <bruno@clisp.org>
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20 dnl The MSVCRT _chsize() function only accepts a 32-bit file size,
6a9ea5d7b466 Large File Support for native Windows platforms.
Bruno Haible <bruno@clisp.org>
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21 dnl and the mingw64 ftruncate64() function is unreliable (it may
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Bruno Haible <bruno@clisp.org>
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22 dnl delete the file, see
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Bruno Haible <bruno@clisp.org>
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23 dnl <http://mingw-w64.sourcearchive.com/documentation/2.0-1/ftruncate64_8c_source.html>).
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24 dnl Use gnulib's ftruncate() implementation instead.
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25 REPLACE_FTRUNCATE=1
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26 ;;
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27 esac
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28 ], [
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29 :
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30 ])
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31 else
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32 HAVE_FTRUNCATE=0
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33 fi
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34 ])
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3339
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35
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3339
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36 # Prerequisites of lib/ftruncate.c.
c1d472db5c30 An independent .m4 file for each module.
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37 AC_DEFUN([gl_PREREQ_FTRUNCATE],
c1d472db5c30 An independent .m4 file for each module.
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38 [
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f6cba5a556ce many *.m4 files: improve m4 quoting
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39 AC_CHECK_FUNCS([chsize])
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40 ])