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228 lines
7.4 KiB
Plaintext
228 lines
7.4 KiB
Plaintext
#serial 3
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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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dnl CAUTION: This is very fragile. It relies on several checks that
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dnl are still in fileutils' configure.in:
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dnl FIXME: add AC_REQUIRE uses to pull in all definitions required
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dnl for all uses of $ac_cv_func_* and $ac_cv_header_* variables below.
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dnl
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AC_PREREQ(2.14a)
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# jm_LIST_MOUNTED_FILESYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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AC_DEFUN(jm_LIST_MOUNTED_FILESYSTEMS,
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[
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# Determine how to get the list of mounted filesystems.
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ac_list_mounted_fs=
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# If the getmntent function is available but not in the standard library,
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# make sure LIBS contains -lsun (on Irix4) or -lseq (on PTX).
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AC_FUNC_GETMNTENT
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# This test must precede the ones for getmntent because Unicos-9 is
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# reported to have the getmntent function, but its support is incompatible
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# with other getmntent implementations.
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# NOTE: Normally, I wouldn't use a check for system type as I've done for
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# `CRAY' below since that goes against the whole autoconf philosophy. But
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# I think there is too great a chance that some non-Cray system has a
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# function named listmntent to risk the false positive.
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if test -z "$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 $ac_cv_func_getmntent = yes; then
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# This system has the getmntent function.
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# Determine whether it's the one-argument variant or the two-argument one.
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if test -z "$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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[test $ac_cv_header_mntent_h = yes \
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&& fu_cv_sys_mounted_getmntent1=yes \
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|| fu_cv_sys_mounted_getmntent1=no])
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AC_MSG_RESULT($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 $fu_cv_sys_mounted_getmntent2 = yes; then
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ac_list_mounted_fs=found
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AC_DEFINE(MOUNTED_GETMNTENT2, 1,
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[Define if there is a function named getmntent for reading the list of
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mounted filesystems, and that function takes two arguments. (SVR4)])
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fi
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fi
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if test -z "$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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fi
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fi
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if test -z "$ac_list_mounted_fs"; then
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# DEC Alpha running OSF/1.
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AC_MSG_CHECKING([for getfsstat function])
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AC_CACHE_VAL(fu_cv_sys_mounted_getsstat,
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[AC_TRY_LINK([
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <sys/fs_types.h>],
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[struct statfs *stats;
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int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT); ],
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fu_cv_sys_mounted_getsstat=yes,
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fu_cv_sys_mounted_getsstat=no)])
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AC_MSG_RESULT($fu_cv_sys_mounted_getsstat)
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if test $fu_cv_sys_mounted_getsstat = yes; then
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ac_list_mounted_fs=found
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AC_DEFINE(MOUNTED_GETFSSTAT, 1,
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[Define if there is a function named getfsstat for reading the
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list of mounted filesystems. (DEC Alpha running OSF/1)])
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fi
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fi
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if test -z "$ac_list_mounted_fs"; then
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# 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 $fu_cv_sys_mounted_vmount = yes; then
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ac_list_mounted_fs=found
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AC_DEFINE(MOUNTED_VMOUNT, 1,
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[Define if there is a function named mntctl that can be used to read
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the list of mounted filesystems, and there is a system header file
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that declares `struct vmount.' (AIX)])
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fi
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fi
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if test -z "$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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ok=
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if test $ac_cv_func_getmntinfo = yes; then
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AC_EGREP_HEADER(f_type;, sys/mount.h,
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ok=yes)
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fi
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test -n "$ok" \
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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 $fu_cv_sys_mounted_getmntinfo = yes; then
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ac_list_mounted_fs=found
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AC_DEFINE(MOUNTED_GETMNTINFO, 1,
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[Define if there is a function named getmntinfo for reading the
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list of mounted filesystems. (4.4BSD)])
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fi
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fi
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# FIXME: add a test for netbsd-1.1 here
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if test -z "$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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# 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 $fu_cv_sys_mounted_fread = yes; then
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ac_list_mounted_fs=found
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AC_DEFINE(MOUNTED_FREAD, 1,
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[Define if there is no specific function for reading the list of
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mounted filesystems. fread will be used to read /etc/mnttab. (SVR2) ])
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fi
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fi
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if test -z "$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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AC_SHELL_IFELSE([test $ac_list_mounted_fs = found], [$1], [$2])dnl
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])
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