summaryrefslogtreecommitdiff
path: root/m4/ls-mntd-fs.m4
blob: aa8ca2d5ab74eea3d9f45d05f21096059adf4602 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
#serial 5

dnl From Jim Meyering.
dnl
dnl This is not pretty.  I've just taken the autoconf code and wrapped
dnl it in an AC_DEFUN.
dnl

AC_PREREQ(2.14a)

# jm_LIST_MOUNTED_FILESYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
AC_DEFUN(jm_LIST_MOUNTED_FILESYSTEMS,
  [
AC_CHECK_FUNCS(listmntent getmntent getmntinfo)
AC_CHECK_HEADERS(mntent.h)

# Determine how to get the list of mounted filesystems.
ac_list_mounted_fs=

# If the getmntent function is available but not in the standard library,
# make sure LIBS contains -lsun (on Irix4) or -lseq (on PTX).
AC_FUNC_GETMNTENT

# This test must precede the ones for getmntent because Unicos-9 is
# reported to have the getmntent function, but its support is incompatible
# with other getmntent implementations.

# NOTE: Normally, I wouldn't use a check for system type as I've done for
# `CRAY' below since that goes against the whole autoconf philosophy.  But
# I think there is too great a chance that some non-Cray system has a
# function named listmntent to risk the false positive.

if test -z "$ac_list_mounted_fs"; then
  # Cray UNICOS 9
  AC_MSG_CHECKING([for listmntent of Cray/Unicos-9])
  AC_CACHE_VAL(fu_cv_sys_mounted_cray_listmntent,
    [fu_cv_sys_mounted_cray_listmntent=no
      AC_EGREP_CPP(yes,
        [#ifdef _CRAY
yes
#endif
        ], [test $ac_cv_func_listmntent = yes \
	    && fu_cv_sys_mounted_cray_listmntent=yes]
      )
    ]
  )
  AC_MSG_RESULT($fu_cv_sys_mounted_cray_listmntent)
  if test $fu_cv_sys_mounted_cray_listmntent = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_LISTMNTENT, 1,
      [Define if there is a function named listmntent that can be used to
   list all mounted filesystems. (UNICOS)])
  fi
fi

if test $ac_cv_func_getmntent = yes; then

  # This system has the getmntent function.
  # Determine whether it's the one-argument variant or the two-argument one.

  if test -z "$ac_list_mounted_fs"; then
    # 4.3BSD, SunOS, HP-UX, Dynix, Irix
    AC_MSG_CHECKING([for one-argument getmntent function])
    AC_CACHE_VAL(fu_cv_sys_mounted_getmntent1,
		 [test $ac_cv_header_mntent_h = yes \
		   && fu_cv_sys_mounted_getmntent1=yes \
		   || fu_cv_sys_mounted_getmntent1=no])
    AC_MSG_RESULT($fu_cv_sys_mounted_getmntent1)
    if test $fu_cv_sys_mounted_getmntent1 = yes; then
      ac_list_mounted_fs=found
      AC_DEFINE(MOUNTED_GETMNTENT1, 1,
  [Define if there is a function named getmntent for reading the list
   of mounted filesystems, and that function takes a single argument.
   (4.3BSD, SunOS, HP-UX, Dynix, Irix)])
    fi
  fi

  if test -z "$ac_list_mounted_fs"; then
    # SVR4
    AC_MSG_CHECKING([for two-argument getmntent function])
    AC_CACHE_VAL(fu_cv_sys_mounted_getmntent2,
    [AC_EGREP_HEADER(getmntent, sys/mnttab.h,
      fu_cv_sys_mounted_getmntent2=yes,
      fu_cv_sys_mounted_getmntent2=no)])
    AC_MSG_RESULT($fu_cv_sys_mounted_getmntent2)
    if test $fu_cv_sys_mounted_getmntent2 = yes; then
      ac_list_mounted_fs=found
      AC_DEFINE(MOUNTED_GETMNTENT2, 1,
  [Define if there is a function named getmntent for reading the list of
   mounted filesystems, and that function takes two arguments.  (SVR4)])
    fi
  fi

  if test -z "$ac_list_mounted_fs"; then
    AC_MSG_ERROR([could not determine how to read list of mounted filesystems])
  fi

fi

if test -z "$ac_list_mounted_fs"; then
  # DEC Alpha running OSF/1.
  AC_MSG_CHECKING([for getfsstat function])
  AC_CACHE_VAL(fu_cv_sys_mounted_getsstat,
  [AC_TRY_LINK([
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/fs_types.h>],
  [struct statfs *stats;
  int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT); ],
    fu_cv_sys_mounted_getsstat=yes,
    fu_cv_sys_mounted_getsstat=no)])
  AC_MSG_RESULT($fu_cv_sys_mounted_getsstat)
  if test $fu_cv_sys_mounted_getsstat = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_GETFSSTAT, 1,
	      [Define if there is a function named getfsstat for reading the
   list of mounted filesystems.  (DEC Alpha running OSF/1)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # AIX.
  AC_MSG_CHECKING([for mntctl function and struct vmount])
  AC_CACHE_VAL(fu_cv_sys_mounted_vmount,
  [AC_TRY_CPP([#include <fshelp.h>],
    fu_cv_sys_mounted_vmount=yes,
    fu_cv_sys_mounted_vmount=no)])
  AC_MSG_RESULT($fu_cv_sys_mounted_vmount)
  if test $fu_cv_sys_mounted_vmount = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_VMOUNT, 1,
	[Define if there is a function named mntctl that can be used to read
   the list of mounted filesystems, and there is a system header file
   that declares `struct vmount.'  (AIX)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # SVR3
  AC_MSG_CHECKING([for FIXME existence of three headers])
  AC_CACHE_VAL(fu_cv_sys_mounted_fread_fstyp,
    [AC_TRY_CPP([
#include <sys/statfs.h>
#include <sys/fstyp.h>
#include <mnttab.h>],
		fu_cv_sys_mounted_fread_fstyp=yes,
		fu_cv_sys_mounted_fread_fstyp=no)])
  AC_MSG_RESULT($fu_cv_sys_mounted_fread_fstyp)
  if test $fu_cv_sys_mounted_fread_fstyp = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_FREAD_FSTYP, 1,
[Define if (like SVR2) there is no specific function for reading the
   list of mounted filesystems, and your system has these header files:
   <sys/fstyp.h> and <sys/statfs.h>.  (SVR3)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # 4.4BSD and DEC OSF/1.
  AC_MSG_CHECKING([for getmntinfo function])
  AC_CACHE_VAL(fu_cv_sys_mounted_getmntinfo,
    [
      ok=
      if test $ac_cv_func_getmntinfo = yes; then
	AC_EGREP_HEADER(f_type;, sys/mount.h,
			ok=yes)
      fi
      test -n "$ok" \
	  && fu_cv_sys_mounted_getmntinfo=yes \
	  || fu_cv_sys_mounted_getmntinfo=no
    ])
  AC_MSG_RESULT($fu_cv_sys_mounted_getmntinfo)
  if test $fu_cv_sys_mounted_getmntinfo = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_GETMNTINFO, 1,
	      [Define if there is a function named getmntinfo for reading the
   list of mounted filesystems.  (4.4BSD)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # Ultrix
  AC_MSG_CHECKING([for getmnt function])
  AC_CACHE_VAL(fu_cv_sys_mounted_getmnt,
    [AC_TRY_CPP([
#include <sys/fs_types.h>
#include <sys/mount.h>],
		fu_cv_sys_mounted_getmnt=yes,
		fu_cv_sys_mounted_getmnt=no)])
  AC_MSG_RESULT($fu_cv_sys_mounted_getmnt)
  if test $fu_cv_sys_mounted_getmnt = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_GETMNT, 1,
      [Define if there is a function named getmnt for reading the list of
   mounted filesystems.  (Ultrix)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # BeOS
  AC_CHECK_FUNCS(next_dev fs_stat_dev)
  AC_CHECK_HEADERS(fs_info.h)
  AC_MSG_CHECKING([for BEOS mounted file system support functions])
  if test $ac_cv_header_fs_info_h = yes \
      && test $ac_cv_func_next_dev = yes \
	&& test $ac_cv_func_fs_stat_dev = yes; then
    fu_result=yes
  else
    fu_result=no
  fi
  AC_MSG_RESULT($fu_result)
  if test $fu_result = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_FS_STAT_DEV, 1,
      [Define if there are functions named next_dev and fs_stat_dev for
   reading the list of mounted filesystems.  (BeOS)])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  # SVR2
  AC_MSG_CHECKING([whether it is possible to resort to fread on /etc/mnttab])
  AC_CACHE_VAL(fu_cv_sys_mounted_fread,
    [AC_TRY_CPP([#include <mnttab.h>],
		fu_cv_sys_mounted_fread=yes,
		fu_cv_sys_mounted_fread=no)])
  AC_MSG_RESULT($fu_cv_sys_mounted_fread)
  if test $fu_cv_sys_mounted_fread = yes; then
    ac_list_mounted_fs=found
    AC_DEFINE(MOUNTED_FREAD, 1,
	      [Define if there is no specific function for reading the list of
   mounted filesystems.  fread will be used to read /etc/mnttab.  (SVR2) ])
  fi
fi

if test -z "$ac_list_mounted_fs"; then
  AC_MSG_ERROR([could not determine how to read list of mounted filesystems])
  # FIXME -- no need to abort building the whole package
  # Can't build mountlist.c or anything that needs its functions
fi

AC_SHELL_IFELSE([test $ac_list_mounted_fs = found], [$1], [$2])dnl

  ])