2 # How to list mounted file systems.
4 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006 Free Software
7 # This file is free software; the Free Software Foundation
8 # gives unlimited permission to copy and/or distribute it,
9 # with or without modifications, as long as this notice is preserved.
11 dnl From Jim Meyering.
13 dnl This is not pretty. I've just taken the autoconf code and wrapped
14 dnl it in an AC_DEFUN and made some other fixes.
17 # Replace Autoconf's AC_FUNC_GETMNTENT to work around a bug in Autoconf
18 # through Autoconf 2.59. We can remove this once we assume Autoconf 2.60
20 AC_DEFUN([AC_FUNC_GETMNTENT],
21 [# getmntent is in the standard C library on UNICOS, in -lsun on Irix 4,
22 # -lseq on Dynix/PTX, -lgen on Unixware.
23 AC_SEARCH_LIBS(getmntent, [sun seq gen])
24 AC_CHECK_FUNCS(getmntent)
27 # gl_LIST_MOUNTED_FILE_SYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
28 AC_DEFUN([gl_LIST_MOUNTED_FILE_SYSTEMS],
30 AC_CHECK_FUNCS(listmntent getmntinfo)
31 AC_CHECK_HEADERS_ONCE(sys/param.h sys/statvfs.h)
33 # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
34 # NGROUPS (as the array dimension for a struct member) without a definition.
35 AC_CHECK_HEADERS(sys/ucred.h, [], [], [#include <grp.h>])
37 AC_CHECK_HEADERS(sys/mount.h, [], [],
40 #include <sys/param.h>
43 AC_CHECK_HEADERS(mntent.h sys/fs_types.h)
47 # include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
50 # include <grp.h> /* needed for definition of NGROUPS */
51 # include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
54 # include <sys/mount.h>
56 #if HAVE_SYS_FS_TYPES_H
57 # include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
60 AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
62 # Determine how to get the list of mounted file systems.
65 # If the getmntent function is available but not in the standard library,
66 # make sure LIBS contains the appropriate -l option.
69 # This test must precede the ones for getmntent because Unicos-9 is
70 # reported to have the getmntent function, but its support is incompatible
71 # with other getmntent implementations.
73 # NOTE: Normally, I wouldn't use a check for system type as I've done for
74 # `CRAY' below since that goes against the whole autoconf philosophy. But
75 # I think there is too great a chance that some non-Cray system has a
76 # function named listmntent to risk the false positive.
78 if test -z "$ac_list_mounted_fs"; then
80 AC_MSG_CHECKING([for listmntent of Cray/Unicos-9])
81 AC_CACHE_VAL(fu_cv_sys_mounted_cray_listmntent,
82 [fu_cv_sys_mounted_cray_listmntent=no
87 ], [test $ac_cv_func_listmntent = yes \
88 && fu_cv_sys_mounted_cray_listmntent=yes]
92 AC_MSG_RESULT($fu_cv_sys_mounted_cray_listmntent)
93 if test $fu_cv_sys_mounted_cray_listmntent = yes; then
94 ac_list_mounted_fs=found
95 AC_DEFINE(MOUNTED_LISTMNTENT, 1,
96 [Define if there is a function named listmntent that can be used to
97 list all mounted file systems. (UNICOS)])
101 if test -z "$ac_list_mounted_fs"; then
103 AC_MSG_CHECKING([for mntctl function and struct vmount])
104 AC_CACHE_VAL(fu_cv_sys_mounted_vmount,
105 [AC_TRY_CPP([#include <fshelp.h>],
106 fu_cv_sys_mounted_vmount=yes,
107 fu_cv_sys_mounted_vmount=no)])
108 AC_MSG_RESULT($fu_cv_sys_mounted_vmount)
109 if test $fu_cv_sys_mounted_vmount = yes; then
110 ac_list_mounted_fs=found
111 AC_DEFINE(MOUNTED_VMOUNT, 1,
112 [Define if there is a function named mntctl that can be used to read
113 the list of mounted file systems, and there is a system header file
114 that declares `struct vmount.' (AIX)])
118 if test $ac_cv_func_getmntent = yes; then
120 # This system has the getmntent function.
121 # Determine whether it's the one-argument variant or the two-argument one.
123 if test -z "$ac_list_mounted_fs"; then
124 # 4.3BSD, SunOS, HP-UX, Dynix, Irix
125 AC_MSG_CHECKING([for one-argument getmntent function])
126 AC_CACHE_VAL(fu_cv_sys_mounted_getmntent1,
128 /* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
133 # if defined _PATH_MOUNTED /* GNU libc */
134 # define MOUNTED _PATH_MOUNTED
136 # if defined MNT_MNTTAB /* HP-UX. */
137 # define MOUNTED MNT_MNTTAB
139 # if defined MNTTABNAME /* Dynix. */
140 # define MOUNTED MNTTABNAME
144 [ struct mntent *mnt = 0; char *table = MOUNTED; ],
145 fu_cv_sys_mounted_getmntent1=yes,
146 fu_cv_sys_mounted_getmntent1=no)])
147 AC_MSG_RESULT($fu_cv_sys_mounted_getmntent1)
148 if test $fu_cv_sys_mounted_getmntent1 = yes; then
149 ac_list_mounted_fs=found
150 AC_DEFINE(MOUNTED_GETMNTENT1, 1,
151 [Define if there is a function named getmntent for reading the list
152 of mounted file systems, and that function takes a single argument.
153 (4.3BSD, SunOS, HP-UX, Dynix, Irix)])
157 if test -z "$ac_list_mounted_fs"; then
159 AC_MSG_CHECKING([for two-argument getmntent function])
160 AC_CACHE_VAL(fu_cv_sys_mounted_getmntent2,
161 [AC_EGREP_HEADER(getmntent, sys/mnttab.h,
162 fu_cv_sys_mounted_getmntent2=yes,
163 fu_cv_sys_mounted_getmntent2=no)])
164 AC_MSG_RESULT($fu_cv_sys_mounted_getmntent2)
165 if test $fu_cv_sys_mounted_getmntent2 = yes; then
166 ac_list_mounted_fs=found
167 AC_DEFINE(MOUNTED_GETMNTENT2, 1,
168 [Define if there is a function named getmntent for reading the list of
169 mounted file systems, and that function takes two arguments. (SVR4)])
170 AC_CHECK_FUNCS(hasmntopt)
176 if test -z "$ac_list_mounted_fs"; then
177 # DEC Alpha running OSF/1, and Apple Darwin 1.3.
178 # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
180 AC_MSG_CHECKING([for getfsstat function])
181 AC_CACHE_VAL(fu_cv_sys_mounted_getfsstat,
183 #include <sys/types.h>
184 #if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
185 # define FS_TYPE(Ent) ((Ent).f_fstypename)
187 # define FS_TYPE(Ent) mnt_names[(Ent).f_type]
191 [struct statfs *stats;
192 int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
193 char *t = FS_TYPE (*stats); ],
194 fu_cv_sys_mounted_getfsstat=yes,
195 fu_cv_sys_mounted_getfsstat=no)])
196 AC_MSG_RESULT($fu_cv_sys_mounted_getfsstat)
197 if test $fu_cv_sys_mounted_getfsstat = yes; then
198 ac_list_mounted_fs=found
199 AC_DEFINE(MOUNTED_GETFSSTAT, 1,
200 [Define if there is a function named getfsstat for reading the
201 list of mounted file systems. (DEC Alpha running OSF/1)])
205 if test -z "$ac_list_mounted_fs"; then
207 AC_MSG_CHECKING([for FIXME existence of three headers])
208 AC_CACHE_VAL(fu_cv_sys_mounted_fread_fstyp,
210 #include <sys/statfs.h>
211 #include <sys/fstyp.h>
212 #include <mnttab.h>],
213 fu_cv_sys_mounted_fread_fstyp=yes,
214 fu_cv_sys_mounted_fread_fstyp=no)])
215 AC_MSG_RESULT($fu_cv_sys_mounted_fread_fstyp)
216 if test $fu_cv_sys_mounted_fread_fstyp = yes; then
217 ac_list_mounted_fs=found
218 AC_DEFINE(MOUNTED_FREAD_FSTYP, 1,
219 [Define if (like SVR2) there is no specific function for reading the
220 list of mounted file systems, and your system has these header files:
221 <sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
225 if test -z "$ac_list_mounted_fs"; then
226 # 4.4BSD and DEC OSF/1.
227 AC_MSG_CHECKING([for getmntinfo function])
228 AC_CACHE_VAL(fu_cv_sys_mounted_getmntinfo,
230 test "$ac_cv_func_getmntinfo" = yes \
231 && fu_cv_sys_mounted_getmntinfo=yes \
232 || fu_cv_sys_mounted_getmntinfo=no
234 AC_MSG_RESULT($fu_cv_sys_mounted_getmntinfo)
235 if test $fu_cv_sys_mounted_getmntinfo = yes; then
236 AC_MSG_CHECKING([whether getmntinfo returns statvfs structures])
237 AC_CACHE_VAL(fu_cv_sys_mounted_getmntinfo2,
240 #include <sys/types.h>
242 # include <sys/mount.h>
244 #if HAVE_SYS_STATVFS_H
245 # include <sys/statvfs.h>
247 extern int getmntinfo (struct statfs **, int);
249 [fu_cv_sys_mounted_getmntinfo2=no],
250 [fu_cv_sys_mounted_getmntinfo2=yes])
252 AC_MSG_RESULT([$fu_cv_sys_mounted_getmntinfo2])
253 if test $fu_cv_sys_mounted_getmntinfo2 = no; then
254 ac_list_mounted_fs=found
255 AC_DEFINE(MOUNTED_GETMNTINFO, 1,
256 [Define if there is a function named getmntinfo for reading the
257 list of mounted file systems and it returns an array of
258 'struct statfs'. (4.4BSD, Darwin)])
260 ac_list_mounted_fs=found
261 AC_DEFINE(MOUNTED_GETMNTINFO2, 1,
262 [Define if there is a function named getmntinfo for reading the
263 list of mounted file systems and it returns an array of
264 'struct statvfs'. (NetBSD 3.0)])
269 if test -z "$ac_list_mounted_fs"; then
271 AC_MSG_CHECKING([for getmnt function])
272 AC_CACHE_VAL(fu_cv_sys_mounted_getmnt,
274 #include <sys/fs_types.h>
275 #include <sys/mount.h>],
276 fu_cv_sys_mounted_getmnt=yes,
277 fu_cv_sys_mounted_getmnt=no)])
278 AC_MSG_RESULT($fu_cv_sys_mounted_getmnt)
279 if test $fu_cv_sys_mounted_getmnt = yes; then
280 ac_list_mounted_fs=found
281 AC_DEFINE(MOUNTED_GETMNT, 1,
282 [Define if there is a function named getmnt for reading the list of
283 mounted file systems. (Ultrix)])
287 if test -z "$ac_list_mounted_fs"; then
289 AC_CHECK_FUNCS(next_dev fs_stat_dev)
290 AC_CHECK_HEADERS(fs_info.h)
291 AC_MSG_CHECKING([for BEOS mounted file system support functions])
292 if test $ac_cv_header_fs_info_h = yes \
293 && test $ac_cv_func_next_dev = yes \
294 && test $ac_cv_func_fs_stat_dev = yes; then
299 AC_MSG_RESULT($fu_result)
300 if test $fu_result = yes; then
301 ac_list_mounted_fs=found
302 AC_DEFINE(MOUNTED_FS_STAT_DEV, 1,
303 [Define if there are functions named next_dev and fs_stat_dev for
304 reading the list of mounted file systems. (BeOS)])
308 if test -z "$ac_list_mounted_fs"; then
310 AC_MSG_CHECKING([whether it is possible to resort to fread on /etc/mnttab])
311 AC_CACHE_VAL(fu_cv_sys_mounted_fread,
312 [AC_TRY_CPP([#include <mnttab.h>],
313 fu_cv_sys_mounted_fread=yes,
314 fu_cv_sys_mounted_fread=no)])
315 AC_MSG_RESULT($fu_cv_sys_mounted_fread)
316 if test $fu_cv_sys_mounted_fread = yes; then
317 ac_list_mounted_fs=found
318 AC_DEFINE(MOUNTED_FREAD, 1,
319 [Define if there is no specific function for reading the list of
320 mounted file systems. fread will be used to read /etc/mnttab.
325 if test -z "$ac_list_mounted_fs"; then
326 AC_MSG_ERROR([could not determine how to read list of mounted file systems])
327 # FIXME -- no need to abort building the whole package
328 # Can't build mountlist.c or anything that needs its functions
331 AS_IF([test $ac_list_mounted_fs = found], [$1], [$2])