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-rw-r--r--gl/m4/mountlist.m4331
1 files changed, 325 insertions, 6 deletions
diff --git a/gl/m4/mountlist.m4 b/gl/m4/mountlist.m4
index cd137c91..49029ed7 100644
--- a/gl/m4/mountlist.m4
+++ b/gl/m4/mountlist.m4
@@ -1,19 +1,338 @@
1# serial 11 1# serial 15
2dnl Copyright (C) 2002-2006, 2009-2013 Free Software Foundation, Inc. 2dnl Copyright (C) 2002-2006, 2009-2021 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation 3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it, 4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved. 5dnl with or without modifications, as long as this notice is preserved.
6 6
7dnl From Jim Meyering.
8
9AC_PREREQ([2.60])
10
7AC_DEFUN([gl_MOUNTLIST], 11AC_DEFUN([gl_MOUNTLIST],
8[ 12[
9 gl_LIST_MOUNTED_FILE_SYSTEMS([gl_cv_list_mounted_fs=yes], 13 AC_REQUIRE([AC_CANONICAL_HOST])
10 [gl_cv_list_mounted_fs=no]) 14 AC_CHECK_FUNCS([listmntent])
15 AC_CHECK_HEADERS_ONCE([sys/param.h sys/statvfs.h])
16
17 # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
18 # NGROUPS (as the array dimension for a struct member) without a definition.
19 AC_CHECK_HEADERS([sys/ucred.h], [], [], [#include <grp.h>])
20
21 AC_CHECK_HEADERS([sys/mount.h], [], [],
22 [AC_INCLUDES_DEFAULT
23 [#if HAVE_SYS_PARAM_H
24 #include <sys/param.h>
25 #endif
26 ]])
27
28 AC_CHECK_HEADERS([mntent.h sys/fs_types.h])
29 getfsstat_includes="\
30$ac_includes_default
31#if HAVE_SYS_PARAM_H
32# include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
33#endif
34#if HAVE_SYS_UCRED_H
35# include <grp.h> /* needed for definition of NGROUPS */
36# include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
37#endif
38#if HAVE_SYS_MOUNT_H
39# include <sys/mount.h>
40#endif
41#if HAVE_SYS_FS_TYPES_H
42# include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
43#endif
44"
45 AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
46
47 # Determine how to get the list of mounted file systems.
48 ac_list_mounted_fs=
49
50 # If the getmntent function is available but not in the standard library,
51 # make sure LIBS contains the appropriate -l option.
52 AC_FUNC_GETMNTENT
53
54 if test -z "$ac_list_mounted_fs"; then
55 # AIX.
56 AC_CACHE_CHECK([for mntctl function and struct vmount],
57 [fu_cv_sys_mounted_vmount],
58 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <fshelp.h>]])],
59 [fu_cv_sys_mounted_vmount=yes],
60 [fu_cv_sys_mounted_vmount=no])])
61 if test $fu_cv_sys_mounted_vmount = yes; then
62 ac_list_mounted_fs=found
63 AC_DEFINE([MOUNTED_VMOUNT], [1],
64 [Define if there is a function named mntctl that can be used to read
65 the list of mounted file systems, and there is a system header file
66 that declares 'struct vmount'. (AIX)])
67 fi
68 fi
69
70 if test $ac_cv_func_getmntent = yes; then
71
72 # This system has the getmntent function.
73 # Determine whether it's the one-argument variant or the two-argument one.
74
75 if test -z "$ac_list_mounted_fs"; then
76 # glibc, HP-UX, IRIX, Cygwin, Android, also (obsolete) 4.3BSD, SunOS.
77 AC_CACHE_CHECK([for one-argument getmntent function],
78 [fu_cv_sys_mounted_getmntent1],
79 [AC_COMPILE_IFELSE(
80 [AC_LANG_PROGRAM([[
81/* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
82#include <stdio.h>
83
84#include <mntent.h>
85#if defined __ANDROID__ /* Android */
86# undef MOUNTED
87# define MOUNTED "/proc/mounts"
88#elif !defined MOUNTED
89# if defined _PATH_MOUNTED /* GNU libc */
90# define MOUNTED _PATH_MOUNTED
91# endif
92# if defined MNT_MNTTAB /* HP-UX. */
93# define MOUNTED MNT_MNTTAB
94# endif
95#endif
96]],
97 [[struct mntent *mnt = 0; char *table = MOUNTED;
98 if (sizeof mnt && sizeof table) return 0;
99 ]])],
100 [fu_cv_sys_mounted_getmntent1=yes],
101 [fu_cv_sys_mounted_getmntent1=no])
102 ])
103 if test $fu_cv_sys_mounted_getmntent1 = yes; then
104 ac_list_mounted_fs=found
105 AC_DEFINE([MOUNTED_GETMNTENT1], [1],
106 [Define if there is a function named getmntent for reading the list
107 of mounted file systems, and that function takes a single argument.
108 (4.3BSD, SunOS, HP-UX, Irix)])
109 AC_CHECK_FUNCS([setmntent endmntent hasmntopt])
110 fi
111 fi
112
113 if test -z "$ac_list_mounted_fs"; then
114 # Solaris >= 8.
115 AC_CACHE_CHECK([for getextmntent function],
116 [fu_cv_sys_mounted_getextmntent],
117 [AC_EGREP_HEADER([getextmntent], [sys/mnttab.h],
118 [fu_cv_sys_mounted_getextmntent=yes],
119 [fu_cv_sys_mounted_getextmntent=no])])
120 if test $fu_cv_sys_mounted_getextmntent = yes; then
121 ac_list_mounted_fs=found
122 AC_DEFINE([MOUNTED_GETEXTMNTENT], [1],
123 [Define if there is a function named getextmntent for reading the list
124 of mounted file systems. (Solaris)])
125 fi
126 fi
127
128 if test -z "$ac_list_mounted_fs"; then
129 # Solaris < 8, also (obsolete) SVR4.
130 # Solaris >= 8 has the two-argument getmntent but is already handled above.
131 AC_CACHE_CHECK([for two-argument getmntent function],
132 [fu_cv_sys_mounted_getmntent2],
133 [AC_EGREP_HEADER([getmntent], [sys/mnttab.h],
134 [fu_cv_sys_mounted_getmntent2=yes],
135 [fu_cv_sys_mounted_getmntent2=no])
136 ])
137 if test $fu_cv_sys_mounted_getmntent2 = yes; then
138 ac_list_mounted_fs=found
139 AC_DEFINE([MOUNTED_GETMNTENT2], [1],
140 [Define if there is a function named getmntent for reading the list of
141 mounted file systems, and that function takes two arguments. (SVR4)])
142 AC_CHECK_FUNCS([hasmntopt])
143 fi
144 fi
145
146 fi
147
148 if test -z "$ac_list_mounted_fs"; then
149 # OSF/1, also (obsolete) Apple Darwin 1.3.
150 # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
151
152 AC_CACHE_CHECK([for getfsstat function],
153 [fu_cv_sys_mounted_getfsstat],
154 [AC_LINK_IFELSE(
155 [AC_LANG_PROGRAM([[
156#include <sys/types.h>
157#if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
158# define FS_TYPE(Ent) ((Ent).f_fstypename)
159#else
160# define FS_TYPE(Ent) mnt_names[(Ent).f_type]
161#endif
162$getfsstat_includes
163 ]],
164 [[struct statfs *stats;
165 int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
166 char *t = FS_TYPE (*stats);
167 ]])],
168 [fu_cv_sys_mounted_getfsstat=yes],
169 [fu_cv_sys_mounted_getfsstat=no])
170 ])
171 if test $fu_cv_sys_mounted_getfsstat = yes; then
172 ac_list_mounted_fs=found
173 AC_DEFINE([MOUNTED_GETFSSTAT], [1],
174 [Define if there is a function named getfsstat for reading the
175 list of mounted file systems. (DEC Alpha running OSF/1)])
176 fi
177 fi
178
179 if test -z "$ac_list_mounted_fs"; then
180 # (obsolete) SVR3
181 AC_CACHE_CHECK([for FIXME existence of three headers],
182 [fu_cv_sys_mounted_fread_fstyp],
183 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
184#include <sys/statfs.h>
185#include <sys/fstyp.h>
186#include <mnttab.h>
187]])],
188 [fu_cv_sys_mounted_fread_fstyp=yes],
189 [fu_cv_sys_mounted_fread_fstyp=no])
190 ])
191 if test $fu_cv_sys_mounted_fread_fstyp = yes; then
192 ac_list_mounted_fs=found
193 AC_DEFINE([MOUNTED_FREAD_FSTYP], [1],
194 [Define if (like SVR2) there is no specific function for reading the
195 list of mounted file systems, and your system has these header files:
196 <sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
197 fi
198 fi
199
200 if test -z "$ac_list_mounted_fs"; then
201 # Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, also (obsolete) 4.4BSD.
202 # OSF/1 also has getmntinfo but is already handled above.
203 # We cannot use AC_CHECK_FUNCS([getmntinfo]) here, because at the linker
204 # level the function is sometimes called getmntinfo64 or getmntinfo$INODE64
205 # on Mac OS X, __getmntinfo13 on NetBSD and Minix, _F64_getmntinfo on OSF/1.
206 AC_CACHE_CHECK([for getmntinfo function],
207 [fu_cv_sys_mounted_getmntinfo],
208 [AC_LINK_IFELSE(
209 [AC_LANG_PROGRAM([[
210#if HAVE_SYS_PARAM_H
211# include <sys/param.h>
212#endif
213#include <sys/types.h>
214#if HAVE_SYS_MOUNT_H
215# include <sys/mount.h>
216#endif
217#if HAVE_SYS_STATVFS_H
218# include <sys/statvfs.h>
219#endif
220#include <stdlib.h>
221 ]],
222 [[int count = getmntinfo (NULL, MNT_WAIT);
223 ]])],
224 [fu_cv_sys_mounted_getmntinfo=yes],
225 [fu_cv_sys_mounted_getmntinfo=no])
226 ])
227 if test $fu_cv_sys_mounted_getmntinfo = yes; then
228 AC_CACHE_CHECK([whether getmntinfo returns statvfs structures],
229 [fu_cv_sys_mounted_getmntinfo2],
230 [AC_COMPILE_IFELSE(
231 [AC_LANG_PROGRAM([[
232#if HAVE_SYS_PARAM_H
233# include <sys/param.h>
234#endif
235#include <sys/types.h>
236#if HAVE_SYS_MOUNT_H
237# include <sys/mount.h>
238#endif
239#if HAVE_SYS_STATVFS_H
240# include <sys/statvfs.h>
241#endif
242extern
243#ifdef __cplusplus
244"C"
245#endif
246int getmntinfo (struct statfs **, int);
247 ]], [[]])],
248 [fu_cv_sys_mounted_getmntinfo2=no],
249 [fu_cv_sys_mounted_getmntinfo2=yes])
250 ])
251 if test $fu_cv_sys_mounted_getmntinfo2 = no; then
252 # Mac OS X, FreeBSD, OpenBSD, also (obsolete) 4.4BSD.
253 ac_list_mounted_fs=found
254 AC_DEFINE([MOUNTED_GETMNTINFO], [1],
255 [Define if there is a function named getmntinfo for reading the
256 list of mounted file systems and it returns an array of
257 'struct statfs'. (4.4BSD, Darwin)])
258 else
259 # NetBSD, Minix.
260 ac_list_mounted_fs=found
261 AC_DEFINE([MOUNTED_GETMNTINFO2], [1],
262 [Define if there is a function named getmntinfo for reading the
263 list of mounted file systems and it returns an array of
264 'struct statvfs'. (NetBSD 3.0)])
265 fi
266 fi
267 fi
268
269 if test -z "$ac_list_mounted_fs"; then
270 # Haiku, also (obsolete) BeOS.
271 AC_CHECK_FUNCS([next_dev fs_stat_dev])
272 AC_CHECK_HEADERS([fs_info.h])
273 AC_CACHE_CHECK([for BEOS mounted file system support functions],
274 [fu_cv_sys_mounted_fs_stat_dev],
275 [if test $ac_cv_header_fs_info_h = yes \
276 && test $ac_cv_func_next_dev = yes \
277 && test $ac_cv_func_fs_stat_dev = yes; then
278 fu_cv_sys_mounted_fs_stat_dev=yes
279 else
280 fu_cv_sys_mounted_fs_stat_dev=no
281 fi
282 ])
283 if test $fu_cv_sys_mounted_fs_stat_dev = yes; then
284 ac_list_mounted_fs=found
285 AC_DEFINE([MOUNTED_FS_STAT_DEV], [1],
286 [Define if there are functions named next_dev and fs_stat_dev for
287 reading the list of mounted file systems. (BeOS)])
288 fi
289 fi
290
291 if test -z "$ac_list_mounted_fs"; then
292 # Interix / BSD alike statvfs
293 # the code is really interix specific, so make sure, we're on it.
294 case "$host" in
295 *-interix*)
296 AC_CHECK_FUNCS([statvfs])
297 if test $ac_cv_func_statvfs = yes; then
298 ac_list_mounted_fs=found
299 AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1],
300 [Define if we are on interix, and ought to use statvfs plus
301 some special knowledge on where mounted file systems can be
302 found. (Interix)])
303 fi
304 ;;
305 esac
306 fi
307
308 if test -z "$ac_list_mounted_fs"; then
309 AC_MSG_ERROR([could not determine how to read list of mounted file systems])
310 # FIXME -- no need to abort building the whole package
311 # Can't build mountlist.c or anything that needs its functions
312 fi
313
314 if test $ac_list_mounted_fs = found; then
315 gl_cv_list_mounted_fs=yes
316 else
317 gl_cv_list_mounted_fs=no
318 fi
11]) 319])
12 320
13# Prerequisites of lib/mountlist.c not done by gl_LIST_MOUNTED_FILE_SYSTEMS. 321# Prerequisites of lib/mountlist.c not done by gl_MOUNTLIST.
14AC_DEFUN([gl_PREREQ_MOUNTLIST_EXTRA], 322AC_DEFUN([gl_PREREQ_MOUNTLIST_EXTRA],
15[ 323[
16 dnl Note gl_LIST_MOUNTED_FILE_SYSTEMS checks for mntent.h, not sys/mntent.h. 324 dnl Note gl_MOUNTLIST checks for mntent.h, not sys/mntent.h.
17 AC_CHECK_HEADERS([sys/mntent.h]) 325 AC_CHECK_HEADERS([sys/mntent.h])
326 AC_HEADER_MAJOR()dnl for use of makedev ()
18 gl_FSTYPENAME 327 gl_FSTYPENAME
19]) 328])
329
330# Replace Autoconf's AC_FUNC_GETMNTENT to omit checks that are unnecessary
331# nowadays.
332AC_DEFUN([AC_FUNC_GETMNTENT],
333[
334 # getmntent is in the standard C library on most systems, but in -lgen on
335 # Unixware.
336 AC_SEARCH_LIBS([getmntent], [gen])
337 AC_CHECK_FUNCS([getmntent])
338])