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Diffstat (limited to 'gl/m4/fsusage.m4')
-rw-r--r-- | gl/m4/fsusage.m4 | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/gl/m4/fsusage.m4 b/gl/m4/fsusage.m4 new file mode 100644 index 00000000..08bf06c9 --- /dev/null +++ b/gl/m4/fsusage.m4 | |||
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1 | #serial 22 | ||
2 | # Obtaining file system usage information. | ||
3 | |||
4 | # Copyright (C) 1997, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software | ||
5 | # Foundation, Inc. | ||
6 | # | ||
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. | ||
10 | |||
11 | # Written by Jim Meyering. | ||
12 | |||
13 | AC_DEFUN([gl_FSUSAGE], | ||
14 | [ | ||
15 | AC_CHECK_HEADERS_ONCE(sys/param.h) | ||
16 | AC_CHECK_HEADERS_ONCE(sys/vfs.h sys/fs_types.h) | ||
17 | AC_CHECK_HEADERS(sys/mount.h, [], [], | ||
18 | [AC_INCLUDES_DEFAULT | ||
19 | [#if HAVE_SYS_PARAM_H | ||
20 | #include <sys/param.h> | ||
21 | #endif]]) | ||
22 | gl_FILE_SYSTEM_USAGE([gl_cv_fs_space=yes], [gl_cv_fs_space=no]) | ||
23 | if test $gl_cv_fs_space = yes; then | ||
24 | AC_LIBOBJ(fsusage) | ||
25 | gl_PREREQ_FSUSAGE_EXTRA | ||
26 | fi | ||
27 | ]) | ||
28 | |||
29 | # Try to determine how a program can obtain file system usage information. | ||
30 | # If successful, define the appropriate symbol (see fsusage.c) and | ||
31 | # execute ACTION-IF-FOUND. Otherwise, execute ACTION-IF-NOT-FOUND. | ||
32 | # | ||
33 | # gl_FILE_SYSTEM_USAGE([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) | ||
34 | |||
35 | AC_DEFUN([gl_FILE_SYSTEM_USAGE], | ||
36 | [ | ||
37 | |||
38 | AC_MSG_NOTICE([checking how to get file system space usage]) | ||
39 | ac_fsusage_space=no | ||
40 | |||
41 | # Perform only the link test since it seems there are no variants of the | ||
42 | # statvfs function. This check is more than just AC_CHECK_FUNCS(statvfs) | ||
43 | # because that got a false positive on SCO OSR5. Adding the declaration | ||
44 | # of a `struct statvfs' causes this test to fail (as it should) on such | ||
45 | # systems. That system is reported to work fine with STAT_STATFS4 which | ||
46 | # is what it gets when this test fails. | ||
47 | if test $ac_fsusage_space = no; then | ||
48 | # SVR4 | ||
49 | AC_CACHE_CHECK([for statvfs function (SVR4)], fu_cv_sys_stat_statvfs, | ||
50 | [AC_TRY_LINK([#include <sys/types.h> | ||
51 | #if defined __GLIBC__ && !defined __BEOS__ | ||
52 | Do not use statvfs on systems with GNU libc, because that function stats | ||
53 | all preceding entries in /proc/mounts, and that makes df hang if even | ||
54 | one of the corresponding file systems is hard-mounted, but not available. | ||
55 | statvfs in GNU libc on BeOS operates differently: it only makes a system | ||
56 | call. | ||
57 | #endif | ||
58 | #include <sys/statvfs.h>], | ||
59 | [struct statvfs fsd; statvfs (0, &fsd);], | ||
60 | fu_cv_sys_stat_statvfs=yes, | ||
61 | fu_cv_sys_stat_statvfs=no)]) | ||
62 | if test $fu_cv_sys_stat_statvfs = yes; then | ||
63 | ac_fsusage_space=yes | ||
64 | AC_DEFINE(STAT_STATVFS, 1, | ||
65 | [ Define if there is a function named statvfs. (SVR4)]) | ||
66 | fi | ||
67 | fi | ||
68 | |||
69 | if test $ac_fsusage_space = no; then | ||
70 | # DEC Alpha running OSF/1 | ||
71 | AC_MSG_CHECKING([for 3-argument statfs function (DEC OSF/1)]) | ||
72 | AC_CACHE_VAL(fu_cv_sys_stat_statfs3_osf1, | ||
73 | [AC_TRY_RUN([ | ||
74 | #include <sys/param.h> | ||
75 | #include <sys/types.h> | ||
76 | #include <sys/mount.h> | ||
77 | int | ||
78 | main () | ||
79 | { | ||
80 | struct statfs fsd; | ||
81 | fsd.f_fsize = 0; | ||
82 | return statfs (".", &fsd, sizeof (struct statfs)) != 0; | ||
83 | }], | ||
84 | fu_cv_sys_stat_statfs3_osf1=yes, | ||
85 | fu_cv_sys_stat_statfs3_osf1=no, | ||
86 | fu_cv_sys_stat_statfs3_osf1=no)]) | ||
87 | AC_MSG_RESULT($fu_cv_sys_stat_statfs3_osf1) | ||
88 | if test $fu_cv_sys_stat_statfs3_osf1 = yes; then | ||
89 | ac_fsusage_space=yes | ||
90 | AC_DEFINE(STAT_STATFS3_OSF1, 1, | ||
91 | [ Define if statfs takes 3 args. (DEC Alpha running OSF/1)]) | ||
92 | fi | ||
93 | fi | ||
94 | |||
95 | if test $ac_fsusage_space = no; then | ||
96 | # AIX | ||
97 | AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl | ||
98 | member (AIX, 4.3BSD)]) | ||
99 | AC_CACHE_VAL(fu_cv_sys_stat_statfs2_bsize, | ||
100 | [AC_TRY_RUN([ | ||
101 | #ifdef HAVE_SYS_PARAM_H | ||
102 | #include <sys/param.h> | ||
103 | #endif | ||
104 | #ifdef HAVE_SYS_MOUNT_H | ||
105 | #include <sys/mount.h> | ||
106 | #endif | ||
107 | #ifdef HAVE_SYS_VFS_H | ||
108 | #include <sys/vfs.h> | ||
109 | #endif | ||
110 | int | ||
111 | main () | ||
112 | { | ||
113 | struct statfs fsd; | ||
114 | fsd.f_bsize = 0; | ||
115 | return statfs (".", &fsd) != 0; | ||
116 | }], | ||
117 | fu_cv_sys_stat_statfs2_bsize=yes, | ||
118 | fu_cv_sys_stat_statfs2_bsize=no, | ||
119 | fu_cv_sys_stat_statfs2_bsize=no)]) | ||
120 | AC_MSG_RESULT($fu_cv_sys_stat_statfs2_bsize) | ||
121 | if test $fu_cv_sys_stat_statfs2_bsize = yes; then | ||
122 | ac_fsusage_space=yes | ||
123 | AC_DEFINE(STAT_STATFS2_BSIZE, 1, | ||
124 | [ Define if statfs takes 2 args and struct statfs has a field named f_bsize. | ||
125 | (4.3BSD, SunOS 4, HP-UX, AIX PS/2)]) | ||
126 | fi | ||
127 | fi | ||
128 | |||
129 | if test $ac_fsusage_space = no; then | ||
130 | # SVR3 | ||
131 | AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)]) | ||
132 | AC_CACHE_VAL(fu_cv_sys_stat_statfs4, | ||
133 | [AC_TRY_RUN([#include <sys/types.h> | ||
134 | #include <sys/statfs.h> | ||
135 | int | ||
136 | main () | ||
137 | { | ||
138 | struct statfs fsd; | ||
139 | return statfs (".", &fsd, sizeof fsd, 0) != 0; | ||
140 | }], | ||
141 | fu_cv_sys_stat_statfs4=yes, | ||
142 | fu_cv_sys_stat_statfs4=no, | ||
143 | fu_cv_sys_stat_statfs4=no)]) | ||
144 | AC_MSG_RESULT($fu_cv_sys_stat_statfs4) | ||
145 | if test $fu_cv_sys_stat_statfs4 = yes; then | ||
146 | ac_fsusage_space=yes | ||
147 | AC_DEFINE(STAT_STATFS4, 1, | ||
148 | [ Define if statfs takes 4 args. (SVR3, Dynix, Irix, Dolphin)]) | ||
149 | fi | ||
150 | fi | ||
151 | |||
152 | if test $ac_fsusage_space = no; then | ||
153 | # 4.4BSD and NetBSD | ||
154 | AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl | ||
155 | member (4.4BSD and NetBSD)]) | ||
156 | AC_CACHE_VAL(fu_cv_sys_stat_statfs2_fsize, | ||
157 | [AC_TRY_RUN([#include <sys/types.h> | ||
158 | #ifdef HAVE_SYS_PARAM_H | ||
159 | #include <sys/param.h> | ||
160 | #endif | ||
161 | #ifdef HAVE_SYS_MOUNT_H | ||
162 | #include <sys/mount.h> | ||
163 | #endif | ||
164 | int | ||
165 | main () | ||
166 | { | ||
167 | struct statfs fsd; | ||
168 | fsd.f_fsize = 0; | ||
169 | return statfs (".", &fsd) != 0; | ||
170 | }], | ||
171 | fu_cv_sys_stat_statfs2_fsize=yes, | ||
172 | fu_cv_sys_stat_statfs2_fsize=no, | ||
173 | fu_cv_sys_stat_statfs2_fsize=no)]) | ||
174 | AC_MSG_RESULT($fu_cv_sys_stat_statfs2_fsize) | ||
175 | if test $fu_cv_sys_stat_statfs2_fsize = yes; then | ||
176 | ac_fsusage_space=yes | ||
177 | AC_DEFINE(STAT_STATFS2_FSIZE, 1, | ||
178 | [ Define if statfs takes 2 args and struct statfs has a field named f_fsize. | ||
179 | (4.4BSD, NetBSD)]) | ||
180 | fi | ||
181 | fi | ||
182 | |||
183 | if test $ac_fsusage_space = no; then | ||
184 | # Ultrix | ||
185 | AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)]) | ||
186 | AC_CACHE_VAL(fu_cv_sys_stat_fs_data, | ||
187 | [AC_TRY_RUN([#include <sys/types.h> | ||
188 | #ifdef HAVE_SYS_PARAM_H | ||
189 | #include <sys/param.h> | ||
190 | #endif | ||
191 | #ifdef HAVE_SYS_MOUNT_H | ||
192 | #include <sys/mount.h> | ||
193 | #endif | ||
194 | #ifdef HAVE_SYS_FS_TYPES_H | ||
195 | #include <sys/fs_types.h> | ||
196 | #endif | ||
197 | int | ||
198 | main () | ||
199 | { | ||
200 | struct fs_data fsd; | ||
201 | /* Ultrix's statfs returns 1 for success, | ||
202 | 0 for not mounted, -1 for failure. */ | ||
203 | return statfs (".", &fsd) != 1; | ||
204 | }], | ||
205 | fu_cv_sys_stat_fs_data=yes, | ||
206 | fu_cv_sys_stat_fs_data=no, | ||
207 | fu_cv_sys_stat_fs_data=no)]) | ||
208 | AC_MSG_RESULT($fu_cv_sys_stat_fs_data) | ||
209 | if test $fu_cv_sys_stat_fs_data = yes; then | ||
210 | ac_fsusage_space=yes | ||
211 | AC_DEFINE(STAT_STATFS2_FS_DATA, 1, | ||
212 | [ Define if statfs takes 2 args and the second argument has | ||
213 | type struct fs_data. (Ultrix)]) | ||
214 | fi | ||
215 | fi | ||
216 | |||
217 | if test $ac_fsusage_space = no; then | ||
218 | # SVR2 | ||
219 | AC_TRY_CPP([#include <sys/filsys.h> | ||
220 | ], | ||
221 | AC_DEFINE(STAT_READ_FILSYS, 1, | ||
222 | [Define if there is no specific function for reading file systems usage | ||
223 | information and you have the <sys/filsys.h> header file. (SVR2)]) | ||
224 | ac_fsusage_space=yes) | ||
225 | fi | ||
226 | |||
227 | AS_IF([test $ac_fsusage_space = yes], [$1], [$2]) | ||
228 | |||
229 | ]) | ||
230 | |||
231 | |||
232 | # Check for SunOS statfs brokenness wrt partitions 2GB and larger. | ||
233 | # If <sys/vfs.h> exists and struct statfs has a member named f_spare, | ||
234 | # enable the work-around code in fsusage.c. | ||
235 | AC_DEFUN([gl_STATFS_TRUNCATES], | ||
236 | [ | ||
237 | AC_MSG_CHECKING([for statfs that truncates block counts]) | ||
238 | AC_CACHE_VAL(fu_cv_sys_truncating_statfs, | ||
239 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | ||
240 | #if !defined(sun) && !defined(__sun) | ||
241 | choke -- this is a workaround for a Sun-specific problem | ||
242 | #endif | ||
243 | #include <sys/types.h> | ||
244 | #include <sys/vfs.h>]], | ||
245 | [[struct statfs t; long c = *(t.f_spare); | ||
246 | if (c) return 0;]])], | ||
247 | [fu_cv_sys_truncating_statfs=yes], | ||
248 | [fu_cv_sys_truncating_statfs=no])]) | ||
249 | if test $fu_cv_sys_truncating_statfs = yes; then | ||
250 | AC_DEFINE(STATFS_TRUNCATES_BLOCK_COUNTS, 1, | ||
251 | [Define if the block counts reported by statfs may be truncated to 2GB | ||
252 | and the correct values may be stored in the f_spare array. | ||
253 | (SunOS 4.1.2, 4.1.3, and 4.1.3_U1 are reported to have this problem. | ||
254 | SunOS 4.1.1 seems not to be affected.)]) | ||
255 | fi | ||
256 | AC_MSG_RESULT($fu_cv_sys_truncating_statfs) | ||
257 | ]) | ||
258 | |||
259 | |||
260 | # Prerequisites of lib/fsusage.c not done by gl_FILE_SYSTEM_USAGE. | ||
261 | AC_DEFUN([gl_PREREQ_FSUSAGE_EXTRA], | ||
262 | [ | ||
263 | AC_CHECK_HEADERS(dustat.h sys/fs/s5param.h sys/filsys.h sys/statfs.h) | ||
264 | gl_STATFS_TRUNCATES | ||
265 | ]) | ||