-# fsusage.m4 serial 13
+# serial 30
# Obtaining file system usage information.
-# Copyright (C) 1997, 1998, 2000, 2001, 2003, 2004 Free Software
-# Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Copyright (C) 1997-1998, 2000-2001, 2003-2014 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
# Written by Jim Meyering.
AC_DEFUN([gl_FSUSAGE],
[
- AC_CHECK_HEADERS_ONCE(sys/param.h)
- AC_CHECK_HEADERS_ONCE(sys/vfs.h sys/fs_types.h)
- AC_CHECK_HEADERS(sys/mount.h, [], [],
+ AC_CHECK_HEADERS_ONCE([sys/param.h])
+ AC_CHECK_HEADERS_ONCE([sys/vfs.h sys/fs_types.h])
+ AC_CHECK_HEADERS([sys/mount.h], [], [],
[AC_INCLUDES_DEFAULT
[#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif]])
gl_FILE_SYSTEM_USAGE([gl_cv_fs_space=yes], [gl_cv_fs_space=no])
- if test $gl_cv_fs_space = yes; then
- AC_LIBOBJ(fsusage)
- gl_PREREQ_FSUSAGE_EXTRA
- fi
])
# Try to determine how a program can obtain file system usage information.
AC_DEFUN([gl_FILE_SYSTEM_USAGE],
[
+dnl Enable large-file support. This has the effect of changing the size
+dnl of field f_blocks in 'struct statvfs' from 32 bit to 64 bit on
+dnl glibc/Hurd, HP-UX 11, Solaris (32-bit mode). It also changes the size
+dnl of field f_blocks in 'struct statfs' from 32 bit to 64 bit on
+dnl Mac OS X >= 10.5 (32-bit mode).
+AC_REQUIRE([AC_SYS_LARGEFILE])
-echo "checking how to get file system space usage..."
+AC_MSG_NOTICE([checking how to get file system space usage])
ac_fsusage_space=no
# Perform only the link test since it seems there are no variants of the
-# statvfs function. This check is more than just AC_CHECK_FUNCS(statvfs)
+# statvfs function. This check is more than just AC_CHECK_FUNCS([statvfs])
# because that got a false positive on SCO OSR5. Adding the declaration
-# of a `struct statvfs' causes this test to fail (as it should) on such
+# of a 'struct statvfs' causes this test to fail (as it should) on such
# systems. That system is reported to work fine with STAT_STATFS4 which
# is what it gets when this test fails.
if test $ac_fsusage_space = no; then
- # SVR4
- AC_CACHE_CHECK([for statvfs function (SVR4)], fu_cv_sys_stat_statvfs,
- [AC_TRY_LINK([#include <sys/types.h>
-#ifdef __GLIBC__
-Do not use statvfs on systems with GNU libc, because that function stats
-all preceding entries in /proc/mounts, and that makes df hang if even
-one of the corresponding file systems is hard-mounted, but not available.
+ # glibc/{Hurd,kFreeBSD}, FreeBSD >= 5.0, NetBSD >= 3.0,
+ # OpenBSD >= 4.4, AIX, HP-UX, IRIX, Solaris, Cygwin, Interix, BeOS.
+ AC_CACHE_CHECK([for statvfs function (SVR4)], [fu_cv_sys_stat_statvfs],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#ifdef __osf__
+"Do not use Tru64's statvfs implementation"
+#endif
+
+#include <sys/statvfs.h>
+
+struct statvfs fsd;
+
+#if defined __APPLE__ && defined __MACH__
+#include <limits.h>
+/* On Mac OS X >= 10.5, f_blocks in 'struct statvfs' is a 32-bit quantity;
+ that commonly limits file systems to 4 TiB. Whereas f_blocks in
+ 'struct statfs' is a 64-bit type, thanks to the large-file support
+ that was enabled above. In this case, don't use statvfs(); use statfs()
+ instead. */
+int check_f_blocks_size[sizeof fsd.f_blocks * CHAR_BIT <= 32 ? -1 : 1];
#endif
-#include <sys/statvfs.h>],
- [struct statvfs fsd; statvfs (0, &fsd);],
- fu_cv_sys_stat_statvfs=yes,
- fu_cv_sys_stat_statvfs=no)])
+]],
+ [[statvfs (0, &fsd);]])],
+ [fu_cv_sys_stat_statvfs=yes],
+ [fu_cv_sys_stat_statvfs=no])])
if test $fu_cv_sys_stat_statvfs = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATVFS, 1,
- [ Define if there is a function named statvfs. (SVR4)])
+ # AIX >= 5.2 has statvfs64 that has a wider f_blocks field than statvfs.
+ # glibc, HP-UX, IRIX, Solaris have statvfs64 as well, but on these systems
+ # statvfs with large-file support is already equivalent to statvfs64.
+ AC_CACHE_CHECK([whether to use statvfs64],
+ [fu_cv_sys_stat_statvfs64],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <sys/types.h>
+ #include <sys/statvfs.h>
+ struct statvfs64 fsd;
+ int check_f_blocks_larger_in_statvfs64
+ [sizeof (((struct statvfs64 *) 0)->f_blocks)
+ > sizeof (((struct statvfs *) 0)->f_blocks)
+ ? 1 : -1];
+ ]],
+ [[statvfs64 (0, &fsd);]])],
+ [fu_cv_sys_stat_statvfs64=yes],
+ [fu_cv_sys_stat_statvfs64=no])
+ ])
+ if test $fu_cv_sys_stat_statvfs64 = yes; then
+ AC_DEFINE([STAT_STATVFS64], [1],
+ [ Define if statvfs64 should be preferred over statvfs.])
+ else
+ AC_DEFINE([STAT_STATVFS], [1],
+ [ Define if there is a function named statvfs. (SVR4)])
+ fi
fi
fi
+# Check for this unconditionally so we have a
+# good fallback on glibc/Linux > 2.6 < 2.6.36
+AC_MSG_CHECKING([for two-argument statfs with statfs.f_frsize member])
+AC_CACHE_VAL([fu_cv_sys_stat_statfs2_frsize],
+[AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+#ifdef HAVE_SYS_VFS_H
+#include <sys/vfs.h>
+#endif
+ int
+ main ()
+ {
+ struct statfs fsd;
+ fsd.f_frsize = 0;
+ return statfs (".", &fsd) != 0;
+ }]])],
+ [fu_cv_sys_stat_statfs2_frsize=yes],
+ [fu_cv_sys_stat_statfs2_frsize=no],
+ [fu_cv_sys_stat_statfs2_frsize=no])])
+AC_MSG_RESULT([$fu_cv_sys_stat_statfs2_frsize])
+if test $fu_cv_sys_stat_statfs2_frsize = yes; then
+ ac_fsusage_space=yes
+ AC_DEFINE([STAT_STATFS2_FRSIZE], [1],
+[ Define if statfs takes 2 args and struct statfs has a field named f_frsize.
+ (glibc/Linux > 2.6)])
+fi
+
if test $ac_fsusage_space = no; then
# DEC Alpha running OSF/1
AC_MSG_CHECKING([for 3-argument statfs function (DEC OSF/1)])
- AC_CACHE_VAL(fu_cv_sys_stat_statfs3_osf1,
- [AC_TRY_RUN([
+ AC_CACHE_VAL([fu_cv_sys_stat_statfs3_osf1],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mount.h>
+ int
main ()
{
struct statfs fsd;
fsd.f_fsize = 0;
- exit (statfs (".", &fsd, sizeof (struct statfs)));
- }],
- fu_cv_sys_stat_statfs3_osf1=yes,
- fu_cv_sys_stat_statfs3_osf1=no,
- fu_cv_sys_stat_statfs3_osf1=no)])
- AC_MSG_RESULT($fu_cv_sys_stat_statfs3_osf1)
+ return statfs (".", &fsd, sizeof (struct statfs)) != 0;
+ }]])],
+ [fu_cv_sys_stat_statfs3_osf1=yes],
+ [fu_cv_sys_stat_statfs3_osf1=no],
+ [fu_cv_sys_stat_statfs3_osf1=no])])
+ AC_MSG_RESULT([$fu_cv_sys_stat_statfs3_osf1])
if test $fu_cv_sys_stat_statfs3_osf1 = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATFS3_OSF1, 1,
- [ Define if statfs takes 3 args. (DEC Alpha running OSF/1)])
+ AC_DEFINE([STAT_STATFS3_OSF1], [1],
+ [ Define if statfs takes 3 args. (DEC Alpha running OSF/1)])
fi
fi
if test $ac_fsusage_space = no; then
-# AIX
- AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
+ # glibc/Linux, Mac OS X, FreeBSD < 5.0, NetBSD < 3.0, OpenBSD < 4.4.
+ # (glibc/{Hurd,kFreeBSD}, FreeBSD >= 5.0, NetBSD >= 3.0,
+ # OpenBSD >= 4.4, AIX, HP-UX, OSF/1, Cygwin already handled above.)
+ # (On IRIX you need to include <sys/statfs.h>, not only <sys/mount.h> and
+ # <sys/vfs.h>.)
+ # (On Solaris, statfs has 4 arguments.)
+ AC_MSG_CHECKING([for two-argument statfs with statfs.f_bsize dnl
member (AIX, 4.3BSD)])
- AC_CACHE_VAL(fu_cv_sys_stat_statfs2_bsize,
- [AC_TRY_RUN([
+ AC_CACHE_VAL([fu_cv_sys_stat_statfs2_bsize],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
+ int
main ()
{
struct statfs fsd;
fsd.f_bsize = 0;
- exit (statfs (".", &fsd));
- }],
- fu_cv_sys_stat_statfs2_bsize=yes,
- fu_cv_sys_stat_statfs2_bsize=no,
- fu_cv_sys_stat_statfs2_bsize=no)])
- AC_MSG_RESULT($fu_cv_sys_stat_statfs2_bsize)
+ return statfs (".", &fsd) != 0;
+ }]])],
+ [fu_cv_sys_stat_statfs2_bsize=yes],
+ [fu_cv_sys_stat_statfs2_bsize=no],
+ [fu_cv_sys_stat_statfs2_bsize=no])])
+ AC_MSG_RESULT([$fu_cv_sys_stat_statfs2_bsize])
if test $fu_cv_sys_stat_statfs2_bsize = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATFS2_BSIZE, 1,
+ AC_DEFINE([STAT_STATFS2_BSIZE], [1],
[ Define if statfs takes 2 args and struct statfs has a field named f_bsize.
(4.3BSD, SunOS 4, HP-UX, AIX PS/2)])
fi
fi
if test $ac_fsusage_space = no; then
-# SVR3
+ # SVR3
+ # (Solaris already handled above.)
AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)])
- AC_CACHE_VAL(fu_cv_sys_stat_statfs4,
- [AC_TRY_RUN([#include <sys/types.h>
+ AC_CACHE_VAL([fu_cv_sys_stat_statfs4],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
#include <sys/statfs.h>
+ int
main ()
{
struct statfs fsd;
- exit (statfs (".", &fsd, sizeof fsd, 0));
- }],
- fu_cv_sys_stat_statfs4=yes,
- fu_cv_sys_stat_statfs4=no,
- fu_cv_sys_stat_statfs4=no)])
- AC_MSG_RESULT($fu_cv_sys_stat_statfs4)
+ return statfs (".", &fsd, sizeof fsd, 0) != 0;
+ }]])],
+ [fu_cv_sys_stat_statfs4=yes],
+ [fu_cv_sys_stat_statfs4=no],
+ [fu_cv_sys_stat_statfs4=no])])
+ AC_MSG_RESULT([$fu_cv_sys_stat_statfs4])
if test $fu_cv_sys_stat_statfs4 = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATFS4, 1,
- [ Define if statfs takes 4 args. (SVR3, Dynix, Irix, Dolphin)])
+ AC_DEFINE([STAT_STATFS4], [1],
+ [ Define if statfs takes 4 args. (SVR3, Dynix, old Irix, old AIX, Dolphin)])
fi
fi
if test $ac_fsusage_space = no; then
-# 4.4BSD and NetBSD
- AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl
+ # 4.4BSD and older NetBSD
+ # (OSF/1 already handled above.)
+ # (On AIX, you need to include <sys/statfs.h>, not only <sys/mount.h>.)
+ # (On Solaris, statfs has 4 arguments and 'struct statfs' is not declared in
+ # <sys/mount.h>.)
+ AC_MSG_CHECKING([for two-argument statfs with statfs.f_fsize dnl
member (4.4BSD and NetBSD)])
- AC_CACHE_VAL(fu_cv_sys_stat_statfs2_fsize,
- [AC_TRY_RUN([#include <sys/types.h>
+ AC_CACHE_VAL([fu_cv_sys_stat_statfs2_fsize],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
+ int
main ()
{
struct statfs fsd;
fsd.f_fsize = 0;
- exit (statfs (".", &fsd));
- }],
- fu_cv_sys_stat_statfs2_fsize=yes,
- fu_cv_sys_stat_statfs2_fsize=no,
- fu_cv_sys_stat_statfs2_fsize=no)])
- AC_MSG_RESULT($fu_cv_sys_stat_statfs2_fsize)
+ return statfs (".", &fsd) != 0;
+ }]])],
+ [fu_cv_sys_stat_statfs2_fsize=yes],
+ [fu_cv_sys_stat_statfs2_fsize=no],
+ [fu_cv_sys_stat_statfs2_fsize=no])])
+ AC_MSG_RESULT([$fu_cv_sys_stat_statfs2_fsize])
if test $fu_cv_sys_stat_statfs2_fsize = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATFS2_FSIZE, 1,
+ AC_DEFINE([STAT_STATFS2_FSIZE], [1],
[ Define if statfs takes 2 args and struct statfs has a field named f_fsize.
(4.4BSD, NetBSD)])
fi
if test $ac_fsusage_space = no; then
# Ultrix
AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)])
- AC_CACHE_VAL(fu_cv_sys_stat_fs_data,
- [AC_TRY_RUN([#include <sys/types.h>
+ AC_CACHE_VAL([fu_cv_sys_stat_fs_data],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_FS_TYPES_H
#include <sys/fs_types.h>
#endif
+ int
main ()
{
struct fs_data fsd;
/* Ultrix's statfs returns 1 for success,
0 for not mounted, -1 for failure. */
- exit (statfs (".", &fsd) != 1);
- }],
- fu_cv_sys_stat_fs_data=yes,
- fu_cv_sys_stat_fs_data=no,
- fu_cv_sys_stat_fs_data=no)])
- AC_MSG_RESULT($fu_cv_sys_stat_fs_data)
+ return statfs (".", &fsd) != 1;
+ }]])],
+ [fu_cv_sys_stat_fs_data=yes],
+ [fu_cv_sys_stat_fs_data=no],
+ [fu_cv_sys_stat_fs_data=no])])
+ AC_MSG_RESULT([$fu_cv_sys_stat_fs_data])
if test $fu_cv_sys_stat_fs_data = yes; then
ac_fsusage_space=yes
- AC_DEFINE(STAT_STATFS2_FS_DATA, 1,
+ AC_DEFINE([STAT_STATFS2_FS_DATA], [1],
[ Define if statfs takes 2 args and the second argument has
type struct fs_data. (Ultrix)])
fi
if test $ac_fsusage_space = no; then
# SVR2
- AC_TRY_CPP([#include <sys/filsys.h>
- ],
- AC_DEFINE(STAT_READ_FILSYS, 1,
+ # (AIX, HP-UX, OSF/1 already handled above.)
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <sys/filsys.h>
+ ]])],
+ [AC_DEFINE([STAT_READ_FILSYS], [1],
[Define if there is no specific function for reading file systems usage
information and you have the <sys/filsys.h> header file. (SVR2)])
- ac_fsusage_space=yes)
+ ac_fsusage_space=yes])
fi
AS_IF([test $ac_fsusage_space = yes], [$1], [$2])
AC_DEFUN([gl_STATFS_TRUNCATES],
[
AC_MSG_CHECKING([for statfs that truncates block counts])
- AC_CACHE_VAL(fu_cv_sys_truncating_statfs,
+ AC_CACHE_VAL([fu_cv_sys_truncating_statfs],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#if !defined(sun) && !defined(__sun)
choke -- this is a workaround for a Sun-specific problem
#endif
#include <sys/types.h>
#include <sys/vfs.h>]],
- [[struct statfs t; long c = *(t.f_spare);]])],
+ [[struct statfs t; long c = *(t.f_spare);
+ if (c) return 0;]])],
[fu_cv_sys_truncating_statfs=yes],
[fu_cv_sys_truncating_statfs=no])])
if test $fu_cv_sys_truncating_statfs = yes; then
- AC_DEFINE(STATFS_TRUNCATES_BLOCK_COUNTS, 1,
+ AC_DEFINE([STATFS_TRUNCATES_BLOCK_COUNTS], [1],
[Define if the block counts reported by statfs may be truncated to 2GB
and the correct values may be stored in the f_spare array.
(SunOS 4.1.2, 4.1.3, and 4.1.3_U1 are reported to have this problem.
SunOS 4.1.1 seems not to be affected.)])
fi
- AC_MSG_RESULT($fu_cv_sys_truncating_statfs)
+ AC_MSG_RESULT([$fu_cv_sys_truncating_statfs])
])
# Prerequisites of lib/fsusage.c not done by gl_FILE_SYSTEM_USAGE.
AC_DEFUN([gl_PREREQ_FSUSAGE_EXTRA],
[
- AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])
- AC_CHECK_HEADERS_ONCE(fcntl.h)
- AC_CHECK_HEADERS(dustat.h sys/fs/s5param.h sys/filsys.h sys/statfs.h sys/statvfs.h)
+ AC_CHECK_HEADERS([dustat.h sys/fs/s5param.h sys/filsys.h sys/statfs.h])
gl_STATFS_TRUNCATES
])
projects / gnulib.git / blobdiff