m4/stat-prog.m4

   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
  21 AC_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 $ac_cv_header_sys_mount_h = yes &&
  31   AC_CHECK_HEADERS([nfs/vfs.h],
  32     [AC_CHECK_HEADERS([nfs/nfs_client.h])])
  33
  34   statvfs_includes="\
  35 AC_INCLUDES_DEFAULT
  36 #include <sys/statvfs.h>
  37 "
  38   statfs_includes="\
  39 AC_INCLUDES_DEFAULT
  40 #if HAVE_SYS_VFS_H
  41 # include <sys/vfs.h>
  42 #elif HAVE_SYS_MOUNT_H && HAVE_SYS_PARAM_H
  43 # include <sys/param.h>
  44 # include <sys/mount.h>
  45 # if HAVE_NETINET_IN_H && HAVE_NFS_NFS_CLNT_H && HAVE_NFS_VFS_H
  46 #  include <netinet/in.h>
  47 #  include <nfs/nfs_clnt.h>
  48 #  include <nfs/vfs.h>
  49 # endif
  50 #elif HAVE_OS_H
  51 # include <fs_info.h>
  52 #endif
  53 "
  54   dnl Keep this long conditional in sync with the USE_STATVFS conditional
  55   dnl in ../src/stat.c.
  56   if case "$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 ])