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annotate m4/fdatasync.m4 @ 17451:1c64d8246a92

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tmpdir: fix typo in previous change
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 15 Jul 2013 14:43:20 -0700
parents e542fd46ad6f
children
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498a2211d839 Write "Mac OS X" instead of "MacOS X".
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1 # fdatasync.m4 serial 4
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2 dnl Copyright (C) 2008-2013 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_FDATASYNC],
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8 [
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9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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10
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11 dnl Using AC_CHECK_FUNCS_ONCE would break our subsequent AC_SEARCH_LIBS
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12 AC_CHECK_DECLS_ONCE([fdatasync])
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13 LIB_FDATASYNC=
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14 AC_SUBST([LIB_FDATASYNC])
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15
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16 if test $ac_cv_have_decl_fdatasync = no; then
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17 HAVE_DECL_FDATASYNC=0
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18 dnl Mac OS X 10.7 has fdatasync but does not declare it.
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19 AC_CHECK_FUNCS([fdatasync])
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20 if test $ac_cv_func_fdatasync = no; then
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21 HAVE_FDATASYNC=0
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22 fi
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23 else
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24 dnl Solaris <= 2.6 has fdatasync() in libposix4.
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25 dnl Solaris 7..10 has it in librt.
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26 gl_saved_libs=$LIBS
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27 AC_SEARCH_LIBS([fdatasync], [rt posix4],
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28 [test "$ac_cv_search_fdatasync" = "none required" ||
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29 LIB_FDATASYNC=$ac_cv_search_fdatasync])
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30 LIBS=$gl_saved_libs
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31 fi
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32 ])