148 lines
5.1 KiB
Plaintext
148 lines
5.1 KiB
Plaintext
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Problems compiling Kerberos
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===========================
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Many compilers require a switch to become ANSI compliant. Since krb4 is
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written in ANSI C it is necessary to specify the name of the compiler
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to be used and the required switch to make it ANSI compliant. This is
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most easily done when running configure using the `env' command. For
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instance to build under HP-UX using the native compiler do:
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datan$ env CC="cc -Ae" ./configure
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In general `gcc' works. The following combinations have also been
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verified to successfully compile the distribution:
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`HP-UX'
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`cc -Ae'
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`Digital UNIX'
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`cc -std1'
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`AIX'
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`xlc'
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`Solaris 2.x'
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`cc' (unbundled one)
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`IRIX'
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`cc'
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Linux problems
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--------------
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The libc functions gethostby*() under RedHat4.2 can sometimes cause
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core dumps. If you experience these problems make sure that the file
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`/etc/nsswitch.conf' contains a hosts entry no more complex than the
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line
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hosts: files dns
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Some systems have lost `/usr/include/ndbm.h' which is necessary to
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build krb4 correctly. There is a `ndbm.h.Linux' right next to the
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source distribution.
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There has been reports of non-working `libdb' on some Linux
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distributions. If that happens, use the `--without-berkeley-db' when
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configuring.
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SunOS 5 (aka Solaris 2) problems
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--------------------------------
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When building shared libraries and using some combinations of GNU gcc/ld
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you better set the environment variable RUN_PATH to /usr/athena/lib
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(your target libdir). If you don't, then you will have to set
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LD_LIBRARY_PATH during runtime and the PAM module will not work.
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HP-UX problems
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--------------
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The shared library `/usr/lib/libndbm.sl' doesn't exist on all systems.
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To make problems even worse, there is never an archive version for
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static linking either. Therefore, when building "truly portable"
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binaries first install GNU gdbm or Berkeley DB, and make sure that you
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are linking against that library.
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Cray problems
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-------------
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`rlogind' won't work on Crays until `forkpty()' has been ported, in the
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mean time use `telnetd'.
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IRIX problems
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-------------
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IRIX has three different ABI:s (Application Binary Interface), there's
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an old 32 bit interface (known as O32, or just 32), a new 32 bit
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interface (N32), and a 64 bit interface (64). O32 and N32 are both 32
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bits, but they have different calling conventions, and alignment
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constraints, and similar. The N32 format is the default format from IRIX
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6.4.
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You select ABI at compile time, and you can do this with the
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`--with-mips-abi' configure option. The valid arguments are `o32',
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`n32', and `64', N32 is the default. Libraries for the three different
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ABI:s are normally installed in different directories (`lib', `lib32',
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and `lib64'). If you want more than one set of libraries you have to
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reconfigure and recompile for each ABI, but you should probably install
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only N32 binaries.
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GCC had had some known problems with the different ABI:s. Old GCC could
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only handle O32, newer GCC can handle N32, and 64, but not O32, but in
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some versions of GCC the structure alignment was broken in N32.
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This confusion with different ABI:s can cause some trouble. For
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instance, the `afskauthlib.so' library has to use the same ABI as
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`xdm', and `login'. The easiest way to check what ABI to use is to run
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`file' on `/usr/bin/X11/xdm'.
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Another problem that you might encounter if you run AFS is that Transarc
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apparently doesn't support the 64-bit ABI, and because of this you can't
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get tokens with a 64 bit application. If you really need to do this,
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there is a kernel module that provides this functionality at
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<ftp://ftp.pdc.kth.se/home/joda/irix-afs64.tar.gz>.
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AIX problems
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------------
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`gcc' version 2.7.2.* has a bug which makes it miscompile
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`appl/telnet/telnetd/sys_term.c' (and possibily `appl/bsd/forkpty.c'),
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if used with too much optimization.
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Some versions of the `xlc' preprocessor do not recognise the
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(undocumented) `-qnolm' option. If this option is passed to the
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preprocessor (like via the configuration file `/etc/ibmcxx.cfg',
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configure will fail.
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The solution is to remove this option from the configuration file,
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either globally, or for just the preprocessor:
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$ cp /etc/ibmcxx.cfg /tmp
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$ed /tmp/ibmcxx.cfg
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8328
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/nolm
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options = -D_AIX,-D_AIX32,-D_AIX41,-D_AIX43,-D_IBMR2,-D_POWER,-bpT:0x10000000,-bpD:0x20000000,-qnolm
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s/,-qnolm//p
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options = -D_AIX,-D_AIX32,-D_AIX41,-D_AIX43,-D_IBMR2,-D_POWER,-bpT:0x10000000,-bpD:0x20000000
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w
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8321
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q
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$ env CC=xlc CPP="xlc -E -F/tmp/ibmcxx.cfg" configure
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There is a bug in AFS 3.4 version 5.38 for AIX 4.3 that causes the
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kernel to panic in some cases. There is a hack for this in `login', but
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other programs could be affected also. This seems to be fixed in
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version 5.55.
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C2 problems
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-----------
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The programs that checks passwords works with `passwd', OTP, and
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Kerberos paswords. This is problem if you use C2 security (or use some
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other password database), that normally keeps passwords in some obscure
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place. If you want to use Kerberos with C2 security you will have to
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think about what kind of changes are necessary. See also the discussion
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about Digital's SIA and C2 security, see *Note Digital SIA::.
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