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annotate m4/mountlist.m4 @ 40153:878ddb87671b

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mountlist: Merge two .m4 files. * m4/mountlist.m4 (gl_MOUNTLIST): Inline gl_LIST_MOUNTED_FILE_SYSTEMS. (AC_FUNC_GETMNTENT): Move to here, from m4/ls-mntd-fs.m4. * m4/ls-mntd-fs.m4: Remove file. * modules/mountlist (Files): Remove m4/ls-mntd-fs.m4.
author Bruno Haible <bruno@clisp.org>
date Sun, 27 Jan 2019 11:45:28 +0100
parents b06060465f09
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
40153
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1 # serial 13
40057
b06060465f09 maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
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2 dnl Copyright (C) 2002-2006, 2009-2019 Free Software Foundation, Inc.
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
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3 dnl 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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4 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
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5 dnl with or without modifications, as long as this notice is preserved.
4107
7c1a6b73f48e An autoconf macro for its associated module.
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6
40153
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7 dnl From Jim Meyering.
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8
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9 AC_PREREQ([2.60])
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10
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11 AC_DEFUN([gl_MOUNTLIST],
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12 [
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13 AC_REQUIRE([AC_CANONICAL_HOST])
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14 AC_CHECK_FUNCS([listmntent])
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15 AC_CHECK_HEADERS_ONCE([sys/param.h sys/statvfs.h])
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16
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17 # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
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18 # NGROUPS (as the array dimension for a struct member) without a definition.
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19 AC_CHECK_HEADERS([sys/ucred.h], [], [], [#include <grp.h>])
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20
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21 AC_CHECK_HEADERS([sys/mount.h], [], [],
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22 [AC_INCLUDES_DEFAULT
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23 [#if HAVE_SYS_PARAM_H
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24 #include <sys/param.h>
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25 #endif
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26 ]])
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27
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28 AC_CHECK_HEADERS([mntent.h sys/fs_types.h])
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29 getfsstat_includes="\
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30 $ac_includes_default
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31 #if HAVE_SYS_PARAM_H
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32 # include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
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33 #endif
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34 #if HAVE_SYS_UCRED_H
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35 # include <grp.h> /* needed for definition of NGROUPS */
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36 # include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
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37 #endif
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38 #if HAVE_SYS_MOUNT_H
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39 # include <sys/mount.h>
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40 #endif
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41 #if HAVE_SYS_FS_TYPES_H
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42 # include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
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43 #endif
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44 "
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45 AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
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46
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47 # Determine how to get the list of mounted file systems.
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48 ac_list_mounted_fs=
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49
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50 # If the getmntent function is available but not in the standard library,
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51 # make sure LIBS contains the appropriate -l option.
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52 AC_FUNC_GETMNTENT
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53
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54 if test -z "$ac_list_mounted_fs"; then
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55 # AIX.
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56 AC_CACHE_CHECK([for mntctl function and struct vmount],
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57 [fu_cv_sys_mounted_vmount],
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58 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <fshelp.h>]])],
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59 [fu_cv_sys_mounted_vmount=yes],
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60 [fu_cv_sys_mounted_vmount=no])])
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61 if test $fu_cv_sys_mounted_vmount = yes; then
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62 ac_list_mounted_fs=found
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63 AC_DEFINE([MOUNTED_VMOUNT], [1],
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64 [Define if there is a function named mntctl that can be used to read
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65 the list of mounted file systems, and there is a system header file
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66 that declares 'struct vmount'. (AIX)])
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67 fi
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68 fi
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69
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70 if test $ac_cv_func_getmntent = yes; then
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71
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72 # This system has the getmntent function.
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73 # Determine whether it's the one-argument variant or the two-argument one.
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74
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75 if test -z "$ac_list_mounted_fs"; then
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76 # glibc, HP-UX, IRIX, Cygwin, Android, also (obsolete) 4.3BSD, SunOS.
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77 AC_CACHE_CHECK([for one-argument getmntent function],
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78 [fu_cv_sys_mounted_getmntent1],
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79 [AC_COMPILE_IFELSE(
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80 [AC_LANG_PROGRAM([[
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81 /* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
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82 #include <stdio.h>
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83
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84 #include <mntent.h>
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85 #if defined __ANDROID__ /* Android */
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86 # undef MOUNTED
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87 # define MOUNTED "/proc/mounts"
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88 #elif !defined MOUNTED
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89 # if defined _PATH_MOUNTED /* GNU libc */
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90 # define MOUNTED _PATH_MOUNTED
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91 # endif
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92 # if defined MNT_MNTTAB /* HP-UX. */
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93 # define MOUNTED MNT_MNTTAB
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94 # endif
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95 #endif
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96 ]],
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97 [[struct mntent *mnt = 0; char *table = MOUNTED;
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98 if (sizeof mnt && sizeof table) return 0;
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99 ]])],
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100 [fu_cv_sys_mounted_getmntent1=yes],
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101 [fu_cv_sys_mounted_getmntent1=no])
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102 ])
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103 if test $fu_cv_sys_mounted_getmntent1 = yes; then
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104 ac_list_mounted_fs=found
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105 AC_DEFINE([MOUNTED_GETMNTENT1], [1],
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106 [Define if there is a function named getmntent for reading the list
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107 of mounted file systems, and that function takes a single argument.
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108 (4.3BSD, SunOS, HP-UX, Irix)])
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109 AC_CHECK_FUNCS([setmntent endmntent hasmntopt])
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110 fi
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111 fi
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112
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113 if test -z "$ac_list_mounted_fs"; then
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114 # Solaris >= 8.
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115 AC_CACHE_CHECK([for getextmntent function],
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116 [fu_cv_sys_mounted_getextmntent],
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117 [AC_EGREP_HEADER([getextmntent], [sys/mnttab.h],
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118 [fu_cv_sys_mounted_getextmntent=yes],
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119 [fu_cv_sys_mounted_getextmntent=no])])
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120 if test $fu_cv_sys_mounted_getextmntent = yes; then
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121 ac_list_mounted_fs=found
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122 AC_DEFINE([MOUNTED_GETEXTMNTENT], [1],
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123 [Define if there is a function named getextmntent for reading the list
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124 of mounted file systems. (Solaris)])
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125 fi
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126 fi
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127
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128 if test -z "$ac_list_mounted_fs"; then
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129 # Solaris < 8, also (obsolete) SVR4.
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130 # Solaris >= 8 has the two-argument getmntent but is already handled above.
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131 AC_CACHE_CHECK([for two-argument getmntent function],
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132 [fu_cv_sys_mounted_getmntent2],
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133 [AC_EGREP_HEADER([getmntent], [sys/mnttab.h],
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134 [fu_cv_sys_mounted_getmntent2=yes],
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135 [fu_cv_sys_mounted_getmntent2=no])
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136 ])
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137 if test $fu_cv_sys_mounted_getmntent2 = yes; then
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138 ac_list_mounted_fs=found
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139 AC_DEFINE([MOUNTED_GETMNTENT2], [1],
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140 [Define if there is a function named getmntent for reading the list of
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141 mounted file systems, and that function takes two arguments. (SVR4)])
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142 AC_CHECK_FUNCS([hasmntopt])
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143 fi
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144 fi
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145
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146 fi
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147
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148 if test -z "$ac_list_mounted_fs"; then
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149 # OSF/1, also (obsolete) Apple Darwin 1.3.
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150 # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
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151
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152 AC_CACHE_CHECK([for getfsstat function],
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153 [fu_cv_sys_mounted_getfsstat],
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154 [AC_LINK_IFELSE(
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155 [AC_LANG_PROGRAM([[
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156 #include <sys/types.h>
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157 #if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
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158 # define FS_TYPE(Ent) ((Ent).f_fstypename)
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159 #else
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160 # define FS_TYPE(Ent) mnt_names[(Ent).f_type]
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161 #endif
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162 $getfsstat_includes
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163 ]],
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164 [[struct statfs *stats;
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165 int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
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166 char *t = FS_TYPE (*stats);
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167 ]])],
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168 [fu_cv_sys_mounted_getfsstat=yes],
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169 [fu_cv_sys_mounted_getfsstat=no])
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170 ])
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171 if test $fu_cv_sys_mounted_getfsstat = yes; then
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172 ac_list_mounted_fs=found
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173 AC_DEFINE([MOUNTED_GETFSSTAT], [1],
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174 [Define if there is a function named getfsstat for reading the
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175 list of mounted file systems. (DEC Alpha running OSF/1)])
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176 fi
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177 fi
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178
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179 if test -z "$ac_list_mounted_fs"; then
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180 # (obsolete) SVR3
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181 AC_CACHE_CHECK([for FIXME existence of three headers],
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182 [fu_cv_sys_mounted_fread_fstyp],
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183 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
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184 #include <sys/statfs.h>
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185 #include <sys/fstyp.h>
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186 #include <mnttab.h>
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187 ]])],
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188 [fu_cv_sys_mounted_fread_fstyp=yes],
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189 [fu_cv_sys_mounted_fread_fstyp=no])
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190 ])
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191 if test $fu_cv_sys_mounted_fread_fstyp = yes; then
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192 ac_list_mounted_fs=found
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193 AC_DEFINE([MOUNTED_FREAD_FSTYP], [1],
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194 [Define if (like SVR2) there is no specific function for reading the
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195 list of mounted file systems, and your system has these header files:
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196 <sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
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197 fi
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198 fi
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199
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200 if test -z "$ac_list_mounted_fs"; then
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201 # Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, also (obsolete) 4.4BSD.
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202 # OSF/1 also has getmntinfo but is already handled above.
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203 # We cannot use AC_CHECK_FUNCS([getmntinfo]) here, because at the linker
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204 # level the function is sometimes called getmntinfo64 or getmntinfo$INODE64
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205 # on Mac OS X, __getmntinfo13 on NetBSD and Minix, _F64_getmntinfo on OSF/1.
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206 AC_CACHE_CHECK([for getmntinfo function],
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207 [fu_cv_sys_mounted_getmntinfo],
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208 [AC_LINK_IFELSE(
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209 [AC_LANG_PROGRAM([[
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210 #if HAVE_SYS_PARAM_H
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211 # include <sys/param.h>
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212 #endif
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213 #include <sys/types.h>
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214 #if HAVE_SYS_MOUNT_H
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215 # include <sys/mount.h>
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216 #endif
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217 #if HAVE_SYS_STATVFS_H
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218 # include <sys/statvfs.h>
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219 #endif
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220 #include <stdlib.h>
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221 ]],
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222 [[int count = getmntinfo (NULL, MNT_WAIT);
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223 ]])],
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224 [fu_cv_sys_mounted_getmntinfo=yes],
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225 [fu_cv_sys_mounted_getmntinfo=no])
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226 ])
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227 if test $fu_cv_sys_mounted_getmntinfo = yes; then
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228 AC_CACHE_CHECK([whether getmntinfo returns statvfs structures],
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229 [fu_cv_sys_mounted_getmntinfo2],
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diff changeset
230 [AC_COMPILE_IFELSE(
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231 [AC_LANG_PROGRAM([[
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diff changeset
232 #if HAVE_SYS_PARAM_H
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233 # include <sys/param.h>
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234 #endif
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235 #include <sys/types.h>
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236 #if HAVE_SYS_MOUNT_H
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237 # include <sys/mount.h>
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238 #endif
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239 #if HAVE_SYS_STATVFS_H
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240 # include <sys/statvfs.h>
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241 #endif
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242 extern
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diff changeset
243 #ifdef __cplusplus
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244 "C"
878ddb87671b mountlist: Merge two .m4 files.
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245 #endif
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246 int getmntinfo (struct statfs **, int);
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247 ]], [])],
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248 [fu_cv_sys_mounted_getmntinfo2=no],
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249 [fu_cv_sys_mounted_getmntinfo2=yes])
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250 ])
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diff changeset
251 if test $fu_cv_sys_mounted_getmntinfo2 = no; then
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diff changeset
252 # Mac OS X, FreeBSD, OpenBSD, also (obsolete) 4.4BSD.
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diff changeset
253 ac_list_mounted_fs=found
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diff changeset
254 AC_DEFINE([MOUNTED_GETMNTINFO], [1],
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255 [Define if there is a function named getmntinfo for reading the
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diff changeset
256 list of mounted file systems and it returns an array of
878ddb87671b mountlist: Merge two .m4 files.
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diff changeset
257 'struct statfs'. (4.4BSD, Darwin)])
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258 else
878ddb87671b mountlist: Merge two .m4 files.
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diff changeset
259 # NetBSD, Minix.
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260 ac_list_mounted_fs=found
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diff changeset
261 AC_DEFINE([MOUNTED_GETMNTINFO2], [1],
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262 [Define if there is a function named getmntinfo for reading the
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diff changeset
263 list of mounted file systems and it returns an array of
878ddb87671b mountlist: Merge two .m4 files.
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diff changeset
264 'struct statvfs'. (NetBSD 3.0)])
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diff changeset
265 fi
878ddb87671b mountlist: Merge two .m4 files.
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266 fi
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267 fi
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268
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269 if test -z "$ac_list_mounted_fs"; then
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270 # Haiku, also (obsolete) BeOS.
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271 AC_CHECK_FUNCS([next_dev fs_stat_dev])
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272 AC_CHECK_HEADERS([fs_info.h])
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273 AC_CACHE_CHECK([for BEOS mounted file system support functions],
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274 [fu_cv_sys_mounted_fs_stat_dev],
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275 [if test $ac_cv_header_fs_info_h = yes \
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276 && test $ac_cv_func_next_dev = yes \
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277 && test $ac_cv_func_fs_stat_dev = yes; then
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278 fu_cv_sys_mounted_fs_stat_dev=yes
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279 else
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280 fu_cv_sys_mounted_fs_stat_dev=no
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281 fi
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282 ])
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283 if test $fu_cv_sys_mounted_fs_stat_dev = yes; then
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284 ac_list_mounted_fs=found
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285 AC_DEFINE([MOUNTED_FS_STAT_DEV], [1],
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286 [Define if there are functions named next_dev and fs_stat_dev for
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287 reading the list of mounted file systems. (BeOS)])
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288 fi
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289 fi
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290
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291 if test -z "$ac_list_mounted_fs"; then
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292 # Interix / BSD alike statvfs
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293 # the code is really interix specific, so make sure, we're on it.
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294 case "$host" in
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295 *-interix*)
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296 AC_CHECK_FUNCS([statvfs])
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297 if test $ac_cv_func_statvfs = yes; then
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298 ac_list_mounted_fs=found
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299 AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1],
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300 [Define if we are on interix, and ought to use statvfs plus
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301 some special knowledge on where mounted file systems can be
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302 found. (Interix)])
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303 fi
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304 ;;
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305 esac
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306 fi
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307
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308 if test -z "$ac_list_mounted_fs"; then
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309 AC_MSG_ERROR([could not determine how to read list of mounted file systems])
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310 # FIXME -- no need to abort building the whole package
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311 # Can't build mountlist.c or anything that needs its functions
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312 fi
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313
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314 if test $ac_list_mounted_fs = found; then
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315 gl_cv_list_mounted_fs=yes
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316 else
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317 gl_cv_list_mounted_fs=no
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318 fi
4107
7c1a6b73f48e An autoconf macro for its associated module.
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319 ])
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320
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321 # Prerequisites of lib/mountlist.c not done by gl_MOUNTLIST.
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322 AC_DEFUN([gl_PREREQ_MOUNTLIST_EXTRA],
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323 [
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324 dnl Note gl_MOUNTLIST checks for mntent.h, not sys/mntent.h.
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325 AC_CHECK_HEADERS([sys/mntent.h])
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326 AC_HEADER_MAJOR()dnl for use of makedev ()
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327 gl_FSTYPENAME
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328 ])
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329
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330 # Replace Autoconf's AC_FUNC_GETMNTENT to omit checks that are unnecessary
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331 # nowadays.
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332 AC_DEFUN([AC_FUNC_GETMNTENT],
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333 [
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334 # getmntent is in the standard C library on UNICOS, in -lsun on Irix 4,
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335 # -lgen on Unixware.
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336 AC_SEARCH_LIBS([getmntent], [sun gen])
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337 AC_CHECK_FUNCS([getmntent])
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338 ])