1# stat-prog.m4 serial 7
2# Record the prerequisites of src/stat.c from the coreutils package.
3
4# Copyright (C) 2002-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19# Written by Jim Meyering.
20
21AC_DEFUN([cu_PREREQ_STAT_PROG],
22[
23  AC_REQUIRE([gl_FSUSAGE])
24  AC_REQUIRE([gl_FSTYPENAME])
25  AC_CHECK_HEADERS_ONCE([OS.h netinet/in.h sys/param.h sys/vfs.h])
26
27  dnl Check for vfs.h first, since this avoids a warning with nfs_client.h
28  dnl on Solaris 8.
29  test $ac_cv_header_sys_param_h = yes &&
30  test $ac_cv_header_sys_mount_h = yes &&
31  AC_CHECK_HEADERS([nfs/vfs.h],
32    [AC_CHECK_HEADERS([nfs/nfs_client.h])])
33
34  statvfs_includes="\
35AC_INCLUDES_DEFAULT
36#include <sys/statvfs.h>
37"
38  statfs_includes="\
39AC_INCLUDES_DEFAULT
40#if HAVE_SYS_VFS_H
41# include <sys/vfs.h>
42#elif HAVE_SYS_MOUNT_H && HAVE_SYS_PARAM_H
43# include <sys/param.h>
44# include <sys/mount.h>
45# if HAVE_NETINET_IN_H && HAVE_NFS_NFS_CLNT_H && HAVE_NFS_VFS_H
46#  include <netinet/in.h>
47#  include <nfs/nfs_clnt.h>
48#  include <nfs/vfs.h>
49# endif
50#elif HAVE_OS_H
51# include <fs_info.h>
52#endif
53"
54  dnl Keep this long conditional in sync with the USE_STATVFS conditional
55  dnl in ../src/stat.c.
56  if case "$fu_cv_sys_stat_statvfs$fu_cv_sys_stat_statvfs64" in
57       *yes*) ;; *) false;; esac &&
58     { AC_CHECK_MEMBERS([struct statvfs.f_basetype],,, [$statvfs_includes])
59       test $ac_cv_member_struct_statvfs_f_basetype = yes ||
60       { AC_CHECK_MEMBERS([struct statvfs.f_fstypename],,, [$statvfs_includes])
61         test $ac_cv_member_struct_statvfs_f_fstypename = yes ||
62         { test $ac_cv_member_struct_statfs_f_fstypename != yes &&
63           { AC_CHECK_MEMBERS([struct statvfs.f_type],,, [$statvfs_includes])
64             test $ac_cv_member_struct_statvfs_f_type = yes; }; }; }; }
65  then
66    AC_CHECK_MEMBERS([struct statvfs.f_namemax],,, [$statvfs_includes])
67    AC_COMPILE_IFELSE(
68      [AC_LANG_PROGRAM(
69         [$statvfs_includes],
70         [static statvfs s;
71          return (s.s_fsid ^ 0) == 0;])],
72      [AC_DEFINE([STRUCT_STATVFS_F_FSID_IS_INTEGER], [1],
73         [Define to 1 if the f_fsid member of struct statvfs is an integer.])])
74  else
75    AC_CHECK_MEMBERS([struct statfs.f_namelen, struct statfs.f_namemax,
76                      struct statfs.f_type, struct statfs.f_frsize],,,
77                     [$statfs_includes])
78    if test $ac_cv_header_OS_h != yes; then
79      AC_COMPILE_IFELSE(
80        [AC_LANG_PROGRAM(
81           [$statfs_includes],
82           [static statfs s;
83            return (s.s_fsid ^ 0) == 0;])],
84        [AC_DEFINE([STRUCT_STATFS_F_FSID_IS_INTEGER], [1],
85           [Define to 1 if the f_fsid member of struct statfs is an integer.])])
86    fi
87  fi
88])
89