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-rw-r--r--m4.include/gnulib/fsusage.m4306
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diff --git a/m4.include/gnulib/fsusage.m4 b/m4.include/gnulib/fsusage.m4
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+# serial 35
+# Obtaining file system usage information.
+
+# Copyright (C) 1997-1998, 2000-2001, 2003-2020 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])
+])
+
+# 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],
+[
+ 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])
+
+ 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
+ # 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
+]],
+ [[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
+ # 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_CACHE_CHECK([for two-argument statfs with statfs.f_frsize member],
+ [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])
+ ])
+ 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_CACHE_CHECK([for 3-argument statfs function (DEC OSF/1)],
+ [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;
+ 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])
+ ])
+ 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
+ # 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_CACHE_CHECK([for two-argument statfs with statfs.f_bsize member (AIX, 4.3BSD)],
+ [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_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])
+ ])
+ 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)])
+ fi
+ fi
+
+ if test $ac_fsusage_space = no; then
+ # SVR3
+ # (Solaris already handled above.)
+ AC_CACHE_CHECK([for four-argument statfs (SVR3)],
+ [fu_cv_sys_stat_statfs4],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#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])
+ ])
+ 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, old Irix)])
+ fi
+ fi
+
+ if test $ac_fsusage_space = no; then
+ # 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_CACHE_CHECK([for two-argument statfs with statfs.f_fsize member (4.4BSD and NetBSD)],
+ [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;
+ 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])
+ ])
+ 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
+
+ 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_CACHE_CHECK([for statfs that truncates block counts],
+ [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
+])
+
+
+# Prerequisites of lib/fsusage.c not done by gl_FILE_SYSTEM_USAGE.
+AC_DEFUN([gl_PREREQ_FSUSAGE_EXTRA],
+[
+ AC_CHECK_HEADERS([sys/fs/s5param.h sys/statfs.h])
+ gl_STATFS_TRUNCATES
+])