-#serial 7
+# serial 27
+# Obtaining file system usage information.
-# From fileutils/configure.in
+# Copyright (C) 1997-1998, 2000-2001, 2003-2011 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_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 filesystem usage information.
+# Try to determine how a program can obtain file system usage information.
# If successful, define the appropriate symbol (see fsusage.c) and
# execute ACTION-IF-FOUND. Otherwise, execute ACTION-IF-NOT-FOUND.
#
-# jm_FILE_SYSTEM_USAGE([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+# gl_FILE_SYSTEM_USAGE([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
-AC_DEFUN(jm_FILE_SYSTEM_USAGE,
+AC_DEFUN([gl_FILE_SYSTEM_USAGE],
[
-echo "checking how to get filesystem 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
# 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>
-#include <sys/statvfs.h>],
- [struct statvfs fsd; statvfs (0, &fsd);],
- fu_cv_sys_stat_statvfs=yes,
- fu_cv_sys_stat_statvfs=no)])
+ # glibc/{Hurd,kFreeBSD}, MacOS X >= 10.4, 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>
+#if (defined __GLIBC__ || defined __UCLIBC__) && defined __linux__
+Do not use statvfs on systems with GNU libc on Linux, 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.
+statvfs in GNU libc on Hurd, BeOS, Haiku operates differently: it only makes
+a system call.
+#endif
+
+#ifdef __osf__
+"Do not use Tru64's statvfs implementation"
+#endif
+
+#include <sys/statvfs.h>]],
+ [[struct statvfs fsd; 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)])
+ AC_DEFINE([STAT_STATVFS], [1],
+ [ Define if there is a function named statvfs. (SVR4)])
fi
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 $ac_fsusage_space = no; then
-# AIX
- AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
+ # glibc/Linux, MacOS X < 10.4, FreeBSD < 5.0, NetBSD < 3.0, OpenBSD < 4.4.
+ # (glibc/{Hurd,kFreeBSD}, MacOS X >= 10.4, FreeBSD >= 5.0, NetBSD >= 3.0,
+ # OpenBSD >= 4.4, AIX, HP-UX, OSF/1, Cygwin already handled above.)
+ # (On IRIX you need to include <sys/statfs.h>, not only <sys/mount.h> and
+ # <sys/vfs.h>.)
+ # (On Solaris, statfs has 4 arguments.)
+ AC_MSG_CHECKING([for two-argument statfs with statfs.f_bsize dnl
member (AIX, 4.3BSD)])
- AC_CACHE_VAL(fu_cv_sys_stat_statfs2_bsize,
- [AC_TRY_RUN([
+ AC_CACHE_VAL([fu_cv_sys_stat_statfs2_bsize],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
+ int
main ()
{
struct statfs fsd;
fsd.f_bsize = 0;
- exit (statfs (".", &fsd));
- }],
- fu_cv_sys_stat_statfs2_bsize=yes,
- fu_cv_sys_stat_statfs2_bsize=no,
- fu_cv_sys_stat_statfs2_bsize=no)])
- AC_MSG_RESULT($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,
- [Define if there is no specific function for reading filesystems usage
+ # (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 = found], [$1], [$2])
+AS_IF([test $ac_fsusage_space = yes], [$1], [$2])
+
+])
+
+
+# Check for SunOS statfs brokenness wrt partitions 2GB and larger.
+# If <sys/vfs.h> exists and struct statfs has a member named f_spare,
+# enable the work-around code in fsusage.c.
+AC_DEFUN([gl_STATFS_TRUNCATES],
+[
+ AC_MSG_CHECKING([for statfs that truncates block counts])
+ 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);
+ if (c) return 0;]])],
+ [fu_cv_sys_truncating_statfs=yes],
+ [fu_cv_sys_truncating_statfs=no])])
+ if test $fu_cv_sys_truncating_statfs = yes; then
+ AC_DEFINE([STATFS_TRUNCATES_BLOCK_COUNTS], [1],
+ [Define if the block counts reported by statfs may be truncated to 2GB
+ and the correct values may be stored in the f_spare array.
+ (SunOS 4.1.2, 4.1.3, and 4.1.3_U1 are reported to have this problem.
+ SunOS 4.1.1 seems not to be affected.)])
+ fi
+ AC_MSG_RESULT([$fu_cv_sys_truncating_statfs])
+])
+
+# Prerequisites of lib/fsusage.c not done by gl_FILE_SYSTEM_USAGE.
+AC_DEFUN([gl_PREREQ_FSUSAGE_EXTRA],
+[
+ AC_CHECK_HEADERS([dustat.h sys/fs/s5param.h sys/filsys.h sys/statfs.h])
+ gl_STATFS_TRUNCATES
])
projects / gnulib.git / blobdiff