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annotate m4/renameat.m4 @ 39898:6b8c2cbdd8b0

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renameatu: prefer renameat2 to syscall * lib/renameatu.c (renameatu) [HAVE_RENAMEAT2]: Use renameat2 instead of syscall (Bug#32796). * m4/renameat.m4 (gl_FUNC_RENAMEAT): Check for renameat2.
author Andreas Henriksson <andreas@fatal.se>
date Sun, 07 Oct 2018 15:01:07 -0700
parents 10eb9086bea0
children b06060465f09
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15083
0c86c6d851e0 renameat: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
parents: 14079
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1 # serial 3
12099
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Eric Blake <ebb9@byu.net>
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2 # See if we need to provide renameat replacement.
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Eric Blake <ebb9@byu.net>
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3
19484
10eb9086bea0 maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents: 19100
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4 dnl Copyright (C) 2009-2018 Free Software Foundation, Inc.
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Eric Blake <ebb9@byu.net>
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5 dnl This file is free software; the Free Software Foundation
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Eric Blake <ebb9@byu.net>
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6 dnl gives unlimited permission to copy and/or distribute it,
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7 dnl with or without modifications, as long as this notice is preserved.
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8
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9 # Written by Eric Blake.
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Eric Blake <ebb9@byu.net>
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10
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Eric Blake <ebb9@byu.net>
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11 AC_DEFUN([gl_FUNC_RENAMEAT],
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12 [
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13 AC_REQUIRE([gl_FUNC_OPENAT])
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14 AC_REQUIRE([gl_FUNC_RENAME])
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15 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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16 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
19100
22715ab8d448 renameat2: fix compilation on alpine linux
Pádraig Brady <P@draigBrady.com>
parents: 18626
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17 AC_CHECK_HEADERS([linux/fs.h])
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6b8c2cbdd8b0 renameatu: prefer renameat2 to syscall
Andreas Henriksson <andreas@fatal.se>
parents: 19484
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18 AC_CHECK_FUNCS_ONCE([renameat renameat2])
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19 if test $ac_cv_func_renameat = no; then
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20 HAVE_RENAMEAT=0
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Eric Blake <ebb9@byu.net>
parents: 12099
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21 elif test $REPLACE_RENAME = 1; then
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Eric Blake <ebb9@byu.net>
parents: 12099
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22 dnl Solaris 9 and 10 have the same bugs in renameat as in rename.
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Eric Blake <ebb9@byu.net>
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23 REPLACE_RENAMEAT=1
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24 fi
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25 ])