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