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annotate m4/ls-mntd-fs.m4 @ 18070:d460ec17f09f

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author Karl Berry <karl@freefriends.org>
date Tue, 28 Jul 2015 13:57:32 -0700
parents 2ae3c246cda5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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17951
2ae3c246cda5 mountlist: remove dependency on libmount
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1 # serial 32
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2 # How to list mounted file systems.
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3
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4 # Copyright (C) 1998-2004, 2006, 2009-2015 Free Software Foundation, Inc.
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5 #
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6 # This file is free software; the Free Software Foundation
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7 # gives unlimited permission to copy and/or distribute it,
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8 # with or without modifications, as long as this notice is preserved.
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9
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10 dnl From Jim Meyering.
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11 dnl
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12 dnl This is not pretty. I've just taken the autoconf code and wrapped
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13 dnl it in an AC_DEFUN and made some other fixes.
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14 dnl
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15
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16 # Replace Autoconf's AC_FUNC_GETMNTENT to work around a bug in Autoconf
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17 # through Autoconf 2.59. We can remove this once we assume Autoconf 2.60
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18 # or later.
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19 AC_DEFUN([AC_FUNC_GETMNTENT],
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20 [# getmntent is in the standard C library on UNICOS, in -lsun on Irix 4,
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21 # -lseq on Dynix/PTX, -lgen on Unixware.
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22 AC_SEARCH_LIBS([getmntent], [sun seq gen])
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23 AC_CHECK_FUNCS([getmntent])
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24 ])
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25
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26 # gl_LIST_MOUNTED_FILE_SYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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27 AC_DEFUN([gl_LIST_MOUNTED_FILE_SYSTEMS],
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28 [
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29 AC_CHECK_FUNCS([listmntent getmntinfo])
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30 AC_CHECK_HEADERS_ONCE([sys/param.h sys/statvfs.h])
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31
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32 # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
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33 # NGROUPS (as the array dimension for a struct member) without a definition.
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34 AC_CHECK_HEADERS([sys/ucred.h], [], [], [#include <grp.h>])
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35
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36 AC_CHECK_HEADERS([sys/mount.h], [], [],
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37 [AC_INCLUDES_DEFAULT
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38 [#if HAVE_SYS_PARAM_H
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39 #include <sys/param.h>
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40 #endif]])
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41
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42 AC_CHECK_HEADERS([mntent.h sys/fs_types.h])
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43 getfsstat_includes="\
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44 $ac_includes_default
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45 #if HAVE_SYS_PARAM_H
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46 # include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
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47 #endif
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48 #if HAVE_SYS_UCRED_H
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49 # include <grp.h> /* needed for definition of NGROUPS */
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50 # include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
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51 #endif
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52 #if HAVE_SYS_MOUNT_H
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53 # include <sys/mount.h>
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54 #endif
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55 #if HAVE_SYS_FS_TYPES_H
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56 # include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
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57 #endif
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58 "
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59 AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
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60
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61 # Determine how to get the list of mounted file systems.
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62 ac_list_mounted_fs=
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63
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64 # If the getmntent function is available but not in the standard library,
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65 # make sure LIBS contains the appropriate -l option.
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66 AC_FUNC_GETMNTENT
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67
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68 # This test must precede the ones for getmntent because Unicos-9 is
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69 # reported to have the getmntent function, but its support is incompatible
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70 # with other getmntent implementations.
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71
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72 # NOTE: Normally, I wouldn't use a check for system type as I've done for
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73 # 'CRAY' below since that goes against the whole autoconf philosophy. But
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74 # I think there is too great a chance that some non-Cray system has a
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75 # function named listmntent to risk the false positive.
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76
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77 if test -z "$ac_list_mounted_fs"; then
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78 # Cray UNICOS 9
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79 AC_MSG_CHECKING([for listmntent of Cray/Unicos-9])
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80 AC_CACHE_VAL([fu_cv_sys_mounted_cray_listmntent],
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81 [fu_cv_sys_mounted_cray_listmntent=no
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82 AC_EGREP_CPP([yes],
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83 [#ifdef _CRAY
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84 yes
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85 #endif
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86 ], [test $ac_cv_func_listmntent = yes \
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87 && fu_cv_sys_mounted_cray_listmntent=yes]
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88 )
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89 ]
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90 )
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91 AC_MSG_RESULT([$fu_cv_sys_mounted_cray_listmntent])
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92 if test $fu_cv_sys_mounted_cray_listmntent = yes; then
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93 ac_list_mounted_fs=found
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94 AC_DEFINE([MOUNTED_LISTMNTENT], [1],
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95 [Define if there is a function named listmntent that can be used to
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96 list all mounted file systems. (UNICOS)])
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97 fi
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98 fi
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99
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100 if test -z "$ac_list_mounted_fs"; then
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101 # AIX.
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102 AC_MSG_CHECKING([for mntctl function and struct vmount])
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103 AC_CACHE_VAL([fu_cv_sys_mounted_vmount],
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104 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <fshelp.h>]])],
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105 [fu_cv_sys_mounted_vmount=yes],
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106 [fu_cv_sys_mounted_vmount=no])])
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107 AC_MSG_RESULT([$fu_cv_sys_mounted_vmount])
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108 if test $fu_cv_sys_mounted_vmount = yes; then
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109 ac_list_mounted_fs=found
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110 AC_DEFINE([MOUNTED_VMOUNT], [1],
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111 [Define if there is a function named mntctl that can be used to read
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112 the list of mounted file systems, and there is a system header file
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113 that declares 'struct vmount'. (AIX)])
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114 fi
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115 fi
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116
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117 if test $ac_cv_func_getmntent = yes; then
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118
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119 # This system has the getmntent function.
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120 # Determine whether it's the one-argument variant or the two-argument one.
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121
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122 if test -z "$ac_list_mounted_fs"; then
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123 # GNU/Linux, 4.3BSD, SunOS, HP-UX, Dynix, Irix
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124 AC_MSG_CHECKING([for one-argument getmntent function])
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125 AC_CACHE_VAL([fu_cv_sys_mounted_getmntent1],
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126 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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127 /* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
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128 #include <stdio.h>
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129
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130 #include <mntent.h>
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131 #if !defined MOUNTED
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132 # if defined _PATH_MOUNTED /* GNU libc */
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133 # define MOUNTED _PATH_MOUNTED
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134 # endif
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135 # if defined MNT_MNTTAB /* HP-UX. */
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136 # define MOUNTED MNT_MNTTAB
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137 # endif
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138 # if defined MNTTABNAME /* Dynix. */
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139 # define MOUNTED MNTTABNAME
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140 # endif
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141 #endif
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142 ]],
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143 [[ struct mntent *mnt = 0; char *table = MOUNTED;
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144 if (sizeof mnt && sizeof table) return 0;]])],
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145 [fu_cv_sys_mounted_getmntent1=yes],
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146 [fu_cv_sys_mounted_getmntent1=no])])
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147 AC_MSG_RESULT([$fu_cv_sys_mounted_getmntent1])
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148 if test $fu_cv_sys_mounted_getmntent1 = yes; then
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149 ac_list_mounted_fs=found
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150 AC_DEFINE([MOUNTED_GETMNTENT1], [1],
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151 [Define if there is a function named getmntent for reading the list
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152 of mounted file systems, and that function takes a single argument.
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153 (4.3BSD, SunOS, HP-UX, Dynix, Irix)])
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154 AC_CHECK_FUNCS([hasmntopt])
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155 fi
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156 fi
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157
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158 if test -z "$ac_list_mounted_fs"; then
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159 # SVR4
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160 AC_MSG_CHECKING([for two-argument getmntent function])
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161 AC_CACHE_VAL([fu_cv_sys_mounted_getmntent2],
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162 [AC_EGREP_HEADER([getmntent], [sys/mnttab.h],
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163 fu_cv_sys_mounted_getmntent2=yes,
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164 fu_cv_sys_mounted_getmntent2=no)])
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165 AC_MSG_RESULT([$fu_cv_sys_mounted_getmntent2])
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166 if test $fu_cv_sys_mounted_getmntent2 = yes; then
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167 ac_list_mounted_fs=found
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168 AC_DEFINE([MOUNTED_GETMNTENT2], [1],
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169 [Define if there is a function named getmntent for reading the list of
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170 mounted file systems, and that function takes two arguments. (SVR4)])
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171 AC_CHECK_FUNCS([hasmntopt])
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172 fi
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173 fi
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174
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175 fi
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176
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177 if test -z "$ac_list_mounted_fs"; then
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178 # DEC Alpha running OSF/1, and Apple Darwin 1.3.
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179 # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
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180
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181 AC_MSG_CHECKING([for getfsstat function])
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182 AC_CACHE_VAL([fu_cv_sys_mounted_getfsstat],
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183 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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184 #include <sys/types.h>
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185 #if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
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186 # define FS_TYPE(Ent) ((Ent).f_fstypename)
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187 #else
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188 # define FS_TYPE(Ent) mnt_names[(Ent).f_type]
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189 #endif
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190 $getfsstat_includes]]
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191 ,
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192 [[struct statfs *stats;
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193 int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
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194 char *t = FS_TYPE (*stats); ]])],
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195 [fu_cv_sys_mounted_getfsstat=yes],
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196 [fu_cv_sys_mounted_getfsstat=no])])
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197 AC_MSG_RESULT([$fu_cv_sys_mounted_getfsstat])
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198 if test $fu_cv_sys_mounted_getfsstat = yes; then
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199 ac_list_mounted_fs=found
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200 AC_DEFINE([MOUNTED_GETFSSTAT], [1],
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201 [Define if there is a function named getfsstat for reading the
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202 list of mounted file systems. (DEC Alpha running OSF/1)])
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203 fi
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204 fi
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205
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206 if test -z "$ac_list_mounted_fs"; then
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207 # SVR3
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208 AC_MSG_CHECKING([for FIXME existence of three headers])
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209 AC_CACHE_VAL([fu_cv_sys_mounted_fread_fstyp],
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210 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
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211 #include <sys/statfs.h>
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212 #include <sys/fstyp.h>
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213 #include <mnttab.h>]])],
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214 [fu_cv_sys_mounted_fread_fstyp=yes],
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215 [fu_cv_sys_mounted_fread_fstyp=no])])
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216 AC_MSG_RESULT([$fu_cv_sys_mounted_fread_fstyp])
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217 if test $fu_cv_sys_mounted_fread_fstyp = yes; then
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218 ac_list_mounted_fs=found
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219 AC_DEFINE([MOUNTED_FREAD_FSTYP], [1],
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220 [Define if (like SVR2) there is no specific function for reading the
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221 list of mounted file systems, and your system has these header files:
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222 <sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
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223 fi
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224 fi
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225
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226 if test -z "$ac_list_mounted_fs"; then
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227 # 4.4BSD and DEC OSF/1.
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228 AC_MSG_CHECKING([for getmntinfo function])
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229 AC_CACHE_VAL([fu_cv_sys_mounted_getmntinfo],
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230 [
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231 test "$ac_cv_func_getmntinfo" = yes \
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232 && fu_cv_sys_mounted_getmntinfo=yes \
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233 || fu_cv_sys_mounted_getmntinfo=no
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234 ])
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235 AC_MSG_RESULT([$fu_cv_sys_mounted_getmntinfo])
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236 if test $fu_cv_sys_mounted_getmntinfo = yes; then
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237 AC_MSG_CHECKING([whether getmntinfo returns statvfs structures])
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238 AC_CACHE_VAL([fu_cv_sys_mounted_getmntinfo2],
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239 [
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240 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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241 #if HAVE_SYS_PARAM_H
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242 # include <sys/param.h>
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243 #endif
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244 #include <sys/types.h>
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245 #if HAVE_SYS_MOUNT_H
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246 # include <sys/mount.h>
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247 #endif
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248 #if HAVE_SYS_STATVFS_H
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249 # include <sys/statvfs.h>
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250 #endif
15438
591ddd1ddd1a Declare system functions in a way that works with C++.
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251 extern
591ddd1ddd1a Declare system functions in a way that works with C++.
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252 #ifdef __cplusplus
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253 "C"
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254 #endif
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255 int getmntinfo (struct statfs **, int);
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256 ]], [])],
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257 [fu_cv_sys_mounted_getmntinfo2=no],
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258 [fu_cv_sys_mounted_getmntinfo2=yes])
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259 ])
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260 AC_MSG_RESULT([$fu_cv_sys_mounted_getmntinfo2])
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diff changeset
261 if test $fu_cv_sys_mounted_getmntinfo2 = no; then
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262 ac_list_mounted_fs=found
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263 AC_DEFINE([MOUNTED_GETMNTINFO], [1],
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264 [Define if there is a function named getmntinfo for reading the
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265 list of mounted file systems and it returns an array of
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266 'struct statfs'. (4.4BSD, Darwin)])
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267 else
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268 ac_list_mounted_fs=found
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269 AC_DEFINE([MOUNTED_GETMNTINFO2], [1],
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270 [Define if there is a function named getmntinfo for reading the
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271 list of mounted file systems and it returns an array of
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272 'struct statvfs'. (NetBSD 3.0)])
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273 fi
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parents:
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274 fi
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parents:
diff changeset
275 fi
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parents:
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276
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277 if test -z "$ac_list_mounted_fs"; then
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278 # Ultrix
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279 AC_MSG_CHECKING([for getmnt function])
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280 AC_CACHE_VAL([fu_cv_sys_mounted_getmnt],
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281 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
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282 #include <sys/fs_types.h>
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diff changeset
283 #include <sys/mount.h>]])],
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284 [fu_cv_sys_mounted_getmnt=yes],
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285 [fu_cv_sys_mounted_getmnt=no])])
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286 AC_MSG_RESULT([$fu_cv_sys_mounted_getmnt])
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287 if test $fu_cv_sys_mounted_getmnt = yes; then
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288 ac_list_mounted_fs=found
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289 AC_DEFINE([MOUNTED_GETMNT], [1],
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290 [Define if there is a function named getmnt for reading the list of
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parents: 5016
diff changeset
291 mounted file systems. (Ultrix)])
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292 fi
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parents:
diff changeset
293 fi
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parents:
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294
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parents: 1977
diff changeset
295 if test -z "$ac_list_mounted_fs"; then
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parents: 2208
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296 # BeOS
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297 AC_CHECK_FUNCS([next_dev fs_stat_dev])
f6cba5a556ce many *.m4 files: improve m4 quoting
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298 AC_CHECK_HEADERS([fs_info.h])
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diff changeset
299 AC_MSG_CHECKING([for BEOS mounted file system support functions])
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300 if test $ac_cv_header_fs_info_h = yes \
8514d17db328 fix typos
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parents: 2454
diff changeset
301 && test $ac_cv_func_next_dev = yes \
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302 && test $ac_cv_func_fs_stat_dev = yes; then
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parents: 2452
diff changeset
303 fu_result=yes
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parents: 2452
diff changeset
304 else
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parents: 2452
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305 fu_result=no
99f53f89beeb (jm_LIST_MOUNTED_FILESYSTEMS): Add BeOS support.
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parents: 2452
diff changeset
306 fi
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diff changeset
307 AC_MSG_RESULT([$fu_result])
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parents: 2452
diff changeset
308 if test $fu_result = yes; then
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parents: 2208
diff changeset
309 ac_list_mounted_fs=found
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diff changeset
310 AC_DEFINE([MOUNTED_FS_STAT_DEV], [1],
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parents: 2208
diff changeset
311 [Define if there are functions named next_dev and fs_stat_dev for
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Paul Eggert <eggert@cs.ucla.edu>
parents: 5016
diff changeset
312 reading the list of mounted file systems. (BeOS)])
2452
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parents: 2208
diff changeset
313 fi
074b568b76a2 (jm_LIST_MOUNTED_FILESYSTEMS): Add BeOS support.
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parents: 2208
diff changeset
314 fi
074b568b76a2 (jm_LIST_MOUNTED_FILESYSTEMS): Add BeOS support.
Jim Meyering <jim@meyering.net>
parents: 2208
diff changeset
315
074b568b76a2 (jm_LIST_MOUNTED_FILESYSTEMS): Add BeOS support.
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parents: 2208
diff changeset
316 if test -z "$ac_list_mounted_fs"; then
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parents:
diff changeset
317 # SVR2
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parents:
diff changeset
318 AC_MSG_CHECKING([whether it is possible to resort to fread on /etc/mnttab])
11007
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parents: 7358
diff changeset
319 AC_CACHE_VAL([fu_cv_sys_mounted_fread],
11929
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parents: 11007
diff changeset
320 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <mnttab.h>]])],
0e6b6e9d54d0 Replace uses of obsolete autoconf macros in Jim's modules.
Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
parents: 11007
diff changeset
321 [fu_cv_sys_mounted_fread=yes],
0e6b6e9d54d0 Replace uses of obsolete autoconf macros in Jim's modules.
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parents: 11007
diff changeset
322 [fu_cv_sys_mounted_fread=no])])
11007
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diff changeset
323 AC_MSG_RESULT([$fu_cv_sys_mounted_fread])
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parents:
diff changeset
324 if test $fu_cv_sys_mounted_fread = yes; then
2208
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parents: 1977
diff changeset
325 ac_list_mounted_fs=found
11007
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parents: 7358
diff changeset
326 AC_DEFINE([MOUNTED_FREAD], [1],
12421
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Bruno Haible <bruno@clisp.org>
parents: 11929
diff changeset
327 [Define if there is no specific function for reading the list of
5159
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Paul Eggert <eggert@cs.ucla.edu>
parents: 5016
diff changeset
328 mounted file systems. fread will be used to read /etc/mnttab.
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3802
diff changeset
329 (SVR2) ])
1386
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parents:
diff changeset
330 fi
Jim Meyering <jim@meyering.net>
parents:
diff changeset
331 fi
Jim Meyering <jim@meyering.net>
parents:
diff changeset
332
2208
9bc7c7e2ae09 s/list_mounted_fs/ac_list_mounted_fs/
Jim Meyering <jim@meyering.net>
parents: 1977
diff changeset
333 if test -z "$ac_list_mounted_fs"; then
14191
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
334 # Interix / BSD alike statvfs
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
335 # the code is really interix specific, so make sure, we're on it.
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
336 case "$host" in
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
337 *-interix*)
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
338 AC_CHECK_FUNCS([statvfs])
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
339 if test $ac_cv_func_statvfs = yes; then
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
340 ac_list_mounted_fs=found
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
341 AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1],
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
342 [Define if we are on interix, and ought to use statvfs plus
16289
cea15de943af maint: spell file systems with two words, not one
Jim Meyering <meyering@redhat.com>
parents: 16235
diff changeset
343 some special knowledge on where mounted file systems can be
14191
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
344 found. (Interix)])
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
345 fi
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
346 ;;
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
347 esac
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
348 fi
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
349
00edc8eebaa5 mountlist: add support for Interix
Markus Duft <mduft@gentoo.org>
parents: 14079
diff changeset
350 if test -z "$ac_list_mounted_fs"; then
5159
a535859efd14 Merge from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5016
diff changeset
351 AC_MSG_ERROR([could not determine how to read list of mounted file systems])
1386
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parents:
diff changeset
352 # FIXME -- no need to abort building the whole package
Jim Meyering <jim@meyering.net>
parents:
diff changeset
353 # Can't build mountlist.c or anything that needs its functions
Jim Meyering <jim@meyering.net>
parents:
diff changeset
354 fi
Jim Meyering <jim@meyering.net>
parents:
diff changeset
355
3151
e5e0a47cba56 (jm_LIST_MOUNTED_FILESYSTEMS): Restore prior use of
Jim Meyering <jim@meyering.net>
parents: 3142
diff changeset
356 AS_IF([test $ac_list_mounted_fs = found], [$1], [$2])
2208
9bc7c7e2ae09 s/list_mounted_fs/ac_list_mounted_fs/
Jim Meyering <jim@meyering.net>
parents: 1977
diff changeset
357
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parents:
diff changeset
358 ])