for getmntinfo() returning its result in struct statvfs.
* m4/fstypename.m4: Update to serial#6, which replaces
HAVE_F_FSTYPENAME_IN_STATFS with HAVE_STRUCT_STATFS_F_FSTYPENAME.
* src/mountlist.c: Sync with gnulib.
All uses of HAVE_F_FSTYPENAME replaced by HAVE_STRUCT_STATFS_F_FSTYPENAME.
[MOUNTED_GETMNTINFO2] Include sys/statvfs.h.
(read_file_system_list) [MOUNTED_GETMNTINFO2]: Implement.
* acinclude.m4 (AC_GET_FS_INFO): Add a check to determine whether
getmntinfo() takes struct statvfs instead of struct statfs as its
first argument. Define MOUNTED_GETMNTINFO_STATVFS if it does.
Add a check to determine whether struct statvfs has a field named
f_fstypename.
Use gl_FSTYPENAME tp determine whether struct statfs has a field
named f_fstypename.
* src/mountlist.c (HAVE_F_FSTYPENAME): Define when getmntinfo() is
used and the struct which it fills has a field named f_fstypename.
(read_filesystem_list) [MOUNTED_GETMNTINFO]: Use
MOUNTED_GETMNTINFO_STATVFS to determine the type of the first
argument to getmntinfo().
mount and file system information with m4_includes of the corresponding
GNU coreutils-5.94 files (ls-mntd-fs.m4 (#20) and fsusage.m4 (#16)).
* m4/fsusage.m4, m4/ls-mntd-fs.m4: Create.
m4 directory is used by aclocal.
* m4/Makefile.am: New file.
* configure.in: Substitute m4/Makefile.
* autogen.sh: Don't copy any macro files, use m4 directory.
