--- /dev/null
+#serial 23
+# Obtaining file system usage information.
+
+# Copyright (C) 1997, 1998, 2000, 2001, 2003-2007 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 file system usage information.
+# If successful, define the appropriate symbol (see fsusage.c) and
+# execute ACTION-IF-FOUND. Otherwise, execute ACTION-IF-NOT-FOUND.
+#
+# gl_FILE_SYSTEM_USAGE([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+
+AC_DEFUN([gl_FILE_SYSTEM_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)
+# 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>
+#if defined __GLIBC__ && !defined __BEOS__
+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.
+statvfs in GNU libc on BeOS 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)])
+ fi
+fi
+
+if test $ac_fsusage_space = no; then
+ # DEC Alpha running OSF/1
+ AC_MSG_CHECKING([for 3-argument statfs function (DEC OSF/1)])
+ AC_CACHE_VAL(fu_cv_sys_stat_statfs3_osf1,
+ [AC_TRY_RUN([
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+ int
+ main ()
+ {
+ struct statfs fsd;
+ fsd.f_fsize = 0;
+ return statfs (".", &fsd, sizeof (struct statfs)) != 0;
+ }],
+ fu_cv_sys_stat_statfs3_osf1=yes,
+ fu_cv_sys_stat_statfs3_osf1=no,
+ fu_cv_sys_stat_statfs3_osf1=no)])
+ AC_MSG_RESULT($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)])
+ fi
+fi
+
+if test $ac_fsusage_space = no; then
+# AIX
+ AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
+member (AIX, 4.3BSD)])
+ AC_CACHE_VAL(fu_cv_sys_stat_statfs2_bsize,
+ [AC_TRY_RUN([
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+#ifdef HAVE_SYS_VFS_H
+#include <sys/vfs.h>
+#endif
+ int
+ main ()
+ {
+ struct statfs fsd;
+ fsd.f_bsize = 0;
+ return statfs (".", &fsd) != 0;
+ }],
+ fu_cv_sys_stat_statfs2_bsize=yes,
+ fu_cv_sys_stat_statfs2_bsize=no,
+ fu_cv_sys_stat_statfs2_bsize=no)])
+ AC_MSG_RESULT($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,
+[ 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 $ac_fsusage_space = no; then
+# SVR3
+ AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)])
+ AC_CACHE_VAL(fu_cv_sys_stat_statfs4,
+ [AC_TRY_RUN([#include <sys/types.h>
+#include <sys/statfs.h>
+ int
+ main ()
+ {
+ struct statfs fsd;
+ return statfs (".", &fsd, sizeof fsd, 0) != 0;
+ }],
+ fu_cv_sys_stat_statfs4=yes,
+ fu_cv_sys_stat_statfs4=no,
+ fu_cv_sys_stat_statfs4=no)])
+ AC_MSG_RESULT($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)])
+ fi
+fi
+
+if test $ac_fsusage_space = no; then
+# 4.4BSD and NetBSD
+ AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl
+member (4.4BSD and NetBSD)])
+ AC_CACHE_VAL(fu_cv_sys_stat_statfs2_fsize,
+ [AC_TRY_RUN([#include <sys/types.h>
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+ int
+ main ()
+ {
+ struct statfs fsd;
+ fsd.f_fsize = 0;
+ return statfs (".", &fsd) != 0;
+ }],
+ fu_cv_sys_stat_statfs2_fsize=yes,
+ fu_cv_sys_stat_statfs2_fsize=no,
+ fu_cv_sys_stat_statfs2_fsize=no)])
+ AC_MSG_RESULT($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,
+[ Define if statfs takes 2 args and struct statfs has a field named f_fsize.
+ (4.4BSD, NetBSD)])
+ fi
+fi
+
+if test $ac_fsusage_space = no; then
+ # Ultrix
+ AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)])
+ AC_CACHE_VAL(fu_cv_sys_stat_fs_data,
+ [AC_TRY_RUN([#include <sys/types.h>
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+#ifdef HAVE_SYS_FS_TYPES_H
+#include <sys/fs_types.h>
+#endif
+ int
+ main ()
+ {
+ struct fs_data fsd;
+ /* Ultrix's statfs returns 1 for success,
+ 0 for not mounted, -1 for failure. */
+ return statfs (".", &fsd) != 1;
+ }],
+ fu_cv_sys_stat_fs_data=yes,
+ fu_cv_sys_stat_fs_data=no,
+ fu_cv_sys_stat_fs_data=no)])
+ AC_MSG_RESULT($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,
+[ Define if statfs takes 2 args and the second argument has
+ type struct fs_data. (Ultrix)])
+ fi
+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 file systems usage
+ information and you have the <sys/filsys.h> header file. (SVR2)])
+ ac_fsusage_space=yes)
+fi
+
+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 / debian / amanda / blobdiff