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#serial 14
dnl From Jim Meyering.
dnl
dnl This is not pretty. I've just taken the autoconf code and wrapped
dnl it in an AC_DEFUN.
dnl
# jm_LIST_MOUNTED_FILESYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
AC_DEFUN([jm_LIST_MOUNTED_FILESYSTEMS],
[
AC_CHECK_FUNCS(listmntent getmntinfo)
AC_CHECK_HEADERS_ONCE(sys/param.h)
# We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
# NGROUPS (as the array dimension for a struct member) without a definition.
AC_CHECK_HEADERS(sys/ucred.h, [], [], [#include <grp.h>])
AC_CHECK_HEADERS(mntent.h sys/mount.h sys/fs_types.h)
getfsstat_includes="\
$ac_includes_default
#if HAVE_SYS_PARAM_H
# include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
#endif
#if HAVE_SYS_UCRED_H
# include <grp.h> /* needed for definition of NGROUPS */
# include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
#endif
#if HAVE_SYS_MOUNT_H
# include <sys/mount.h>
#endif
#if HAVE_SYS_FS_TYPES_H
# include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
#endif
"
AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
# Determine how to get the list of mounted filesystems.
ac_list_mounted_fs=
# If the getmntent function is available but not in the standard library,
# make sure LIBS contains -lsun (on Irix4) or -lseq (on PTX).
AC_FUNC_GETMNTENT
# This test must precede the ones for getmntent because Unicos-9 is
# reported to have the getmntent function, but its support is incompatible
# with other getmntent implementations.
# NOTE: Normally, I wouldn't use a check for system type as I've done for
# `CRAY' below since that goes against the whole autoconf philosophy. But
# I think there is too great a chance that some non-Cray system has a
# function named listmntent to risk the false positive.
if test -z "$ac_list_mounted_fs"; then
# Cray UNICOS 9
AC_MSG_CHECKING([for listmntent of Cray/Unicos-9])
AC_CACHE_VAL(fu_cv_sys_mounted_cray_listmntent,
[fu_cv_sys_mounted_cray_listmntent=no
AC_EGREP_CPP(yes,
[#ifdef _CRAY
yes
#endif
], [test $ac_cv_func_listmntent = yes \
&& fu_cv_sys_mounted_cray_listmntent=yes]
)
]
)
AC_MSG_RESULT($fu_cv_sys_mounted_cray_listmntent)
if test $fu_cv_sys_mounted_cray_listmntent = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_LISTMNTENT, 1,
[Define if there is a function named listmntent that can be used to
list all mounted filesystems. (UNICOS)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# AIX.
AC_MSG_CHECKING([for mntctl function and struct vmount])
AC_CACHE_VAL(fu_cv_sys_mounted_vmount,
[AC_TRY_CPP([#include <fshelp.h>],
fu_cv_sys_mounted_vmount=yes,
fu_cv_sys_mounted_vmount=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_vmount)
if test $fu_cv_sys_mounted_vmount = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_VMOUNT, 1,
[Define if there is a function named mntctl that can be used to read
the list of mounted filesystems, and there is a system header file
that declares `struct vmount.' (AIX)])
fi
fi
if test $ac_cv_func_getmntent = yes; then
# This system has the getmntent function.
# Determine whether it's the one-argument variant or the two-argument one.
if test -z "$ac_list_mounted_fs"; then
# 4.3BSD, SunOS, HP-UX, Dynix, Irix
AC_MSG_CHECKING([for one-argument getmntent function])
AC_CACHE_VAL(fu_cv_sys_mounted_getmntent1,
[AC_TRY_COMPILE([
/* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
#include <stdio.h>
#include <mntent.h>
#if !defined MOUNTED
# if defined _PATH_MOUNTED /* GNU libc */
# define MOUNTED _PATH_MOUNTED
# endif
# if defined MNT_MNTTAB /* HP-UX. */
# define MOUNTED MNT_MNTTAB
# endif
# if defined MNTTABNAME /* Dynix. */
# define MOUNTED MNTTABNAME
# endif
#endif
],
[ struct mntent *mnt = 0; char *table = MOUNTED; ],
fu_cv_sys_mounted_getmntent1=yes,
fu_cv_sys_mounted_getmntent1=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_getmntent1)
if test $fu_cv_sys_mounted_getmntent1 = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_GETMNTENT1, 1,
[Define if there is a function named getmntent for reading the list
of mounted filesystems, and that function takes a single argument.
(4.3BSD, SunOS, HP-UX, Dynix, Irix)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# SVR4
AC_MSG_CHECKING([for two-argument getmntent function])
AC_CACHE_VAL(fu_cv_sys_mounted_getmntent2,
[AC_EGREP_HEADER(getmntent, sys/mnttab.h,
fu_cv_sys_mounted_getmntent2=yes,
fu_cv_sys_mounted_getmntent2=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_getmntent2)
if test $fu_cv_sys_mounted_getmntent2 = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_GETMNTENT2, 1,
[Define if there is a function named getmntent for reading the list of
mounted filesystems, and that function takes two arguments. (SVR4)])
fi
fi
fi
if test -z "$ac_list_mounted_fs"; then
# DEC Alpha running OSF/1, and Apple Darwin 1.3.
# powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
AC_MSG_CHECKING([for getfsstat function])
AC_CACHE_VAL(fu_cv_sys_mounted_getfsstat,
[AC_TRY_LINK([
#include <sys/types.h>
#if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
# define FS_TYPE(Ent) ((Ent).f_fstypename)
#else
# define FS_TYPE(Ent) mnt_names[(Ent).f_type]
#endif
]$getfsstat_includes
,
[struct statfs *stats;
int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
char *t = FS_TYPE (*stats); ],
fu_cv_sys_mounted_getfsstat=yes,
fu_cv_sys_mounted_getfsstat=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_getfsstat)
if test $fu_cv_sys_mounted_getfsstat = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_GETFSSTAT, 1,
[Define if there is a function named getfsstat for reading the
list of mounted filesystems. (DEC Alpha running OSF/1)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# SVR3
AC_MSG_CHECKING([for FIXME existence of three headers])
AC_CACHE_VAL(fu_cv_sys_mounted_fread_fstyp,
[AC_TRY_CPP([
#include <sys/statfs.h>
#include <sys/fstyp.h>
#include <mnttab.h>],
fu_cv_sys_mounted_fread_fstyp=yes,
fu_cv_sys_mounted_fread_fstyp=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_fread_fstyp)
if test $fu_cv_sys_mounted_fread_fstyp = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_FREAD_FSTYP, 1,
[Define if (like SVR2) there is no specific function for reading the
list of mounted filesystems, and your system has these header files:
<sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# 4.4BSD and DEC OSF/1.
AC_MSG_CHECKING([for getmntinfo function])
AC_CACHE_VAL(fu_cv_sys_mounted_getmntinfo,
[
test "$ac_cv_func_getmntinfo" = yes \
&& fu_cv_sys_mounted_getmntinfo=yes \
|| fu_cv_sys_mounted_getmntinfo=no
])
AC_MSG_RESULT($fu_cv_sys_mounted_getmntinfo)
if test $fu_cv_sys_mounted_getmntinfo = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_GETMNTINFO, 1,
[Define if there is a function named getmntinfo for reading the
list of mounted filesystems. (4.4BSD, Darwin)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# Ultrix
AC_MSG_CHECKING([for getmnt function])
AC_CACHE_VAL(fu_cv_sys_mounted_getmnt,
[AC_TRY_CPP([
#include <sys/fs_types.h>
#include <sys/mount.h>],
fu_cv_sys_mounted_getmnt=yes,
fu_cv_sys_mounted_getmnt=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_getmnt)
if test $fu_cv_sys_mounted_getmnt = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_GETMNT, 1,
[Define if there is a function named getmnt for reading the list of
mounted filesystems. (Ultrix)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# BeOS
AC_CHECK_FUNCS(next_dev fs_stat_dev)
AC_CHECK_HEADERS(fs_info.h)
AC_MSG_CHECKING([for BEOS mounted file system support functions])
if test $ac_cv_header_fs_info_h = yes \
&& test $ac_cv_func_next_dev = yes \
&& test $ac_cv_func_fs_stat_dev = yes; then
fu_result=yes
else
fu_result=no
fi
AC_MSG_RESULT($fu_result)
if test $fu_result = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_FS_STAT_DEV, 1,
[Define if there are functions named next_dev and fs_stat_dev for
reading the list of mounted filesystems. (BeOS)])
fi
fi
if test -z "$ac_list_mounted_fs"; then
# SVR2
AC_MSG_CHECKING([whether it is possible to resort to fread on /etc/mnttab])
AC_CACHE_VAL(fu_cv_sys_mounted_fread,
[AC_TRY_CPP([#include <mnttab.h>],
fu_cv_sys_mounted_fread=yes,
fu_cv_sys_mounted_fread=no)])
AC_MSG_RESULT($fu_cv_sys_mounted_fread)
if test $fu_cv_sys_mounted_fread = yes; then
ac_list_mounted_fs=found
AC_DEFINE(MOUNTED_FREAD, 1,
[Define if there is no specific function for reading the list of
mounted filesystems. fread will be used to read /etc/mnttab.
(SVR2) ])
fi
fi
if test -z "$ac_list_mounted_fs"; then
AC_MSG_ERROR([could not determine how to read list of mounted filesystems])
# FIXME -- no need to abort building the whole package
# Can't build mountlist.c or anything that needs its functions
fi
AS_IF([test $ac_list_mounted_fs = found], [$1], [$2])
])
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