FM / pod

/usr/share/perl5/pod

Name	Size	Mode	Actions
perl.pod	16667	0644	edit dl rm
perl56delta.pod	107201	0644	edit dl rm
perl58delta.pod	115165	0644	edit dl rm
perl561delta.pod	124713	0644	edit dl rm
perl581delta.pod	38060	0644	edit dl rm
perl582delta.pod	4470	0644	edit dl rm
perl583delta.pod	6335	0644	edit dl rm
perl584delta.pod	7363	0644	edit dl rm
perl585delta.pod	5889	0644	edit dl rm
perl586delta.pod	4651	0644	edit dl rm
perl587delta.pod	8357	0644	edit dl rm
perl588delta.pod	25281	0644	edit dl rm
perl589delta.pod	53904	0644	edit dl rm
perl5004delta.pod	56240	0644	edit dl rm
perl5005delta.pod	34283	0644	edit dl rm
perl5100delta.pod	55533	0644	edit dl rm
perl5101delta.pod	43888	0644	edit dl rm
perl5120delta.pod	89271	0644	edit dl rm
perl5121delta.pod	10141	0644	edit dl rm
perl5122delta.pod	9603	0644	edit dl rm
perl5123delta.pod	4100	0644	edit dl rm
perl5124delta.pod	3672	0644	edit dl rm
perl5125delta.pod	7683	0644	edit dl rm
perl5140delta.pod	144325	0644	edit dl rm
perl5141delta.pod	7966	0644	edit dl rm
perl5142delta.pod	6892	0644	edit dl rm
perl5143delta.pod	7760	0644	edit dl rm
perl5144delta.pod	6327	0644	edit dl rm
perl5160delta.pod	133651	0644	edit dl rm
perl5161delta.pod	6142	0644	edit dl rm
perl5162delta.pod	3594	0644	edit dl rm
perl5163delta.pod	4085	0644	edit dl rm
perl5180delta.pod	119429	0644	edit dl rm
perl5181delta.pod	6597	0644	edit dl rm
perl5182delta.pod	5335	0644	edit dl rm
perl5184delta.pod	4642	0644	edit dl rm
perl5200delta.pod	115698	0644	edit dl rm
perl5201delta.pod	10899	0644	edit dl rm
perl5202delta.pod	12509	0644	edit dl rm
perl5203delta.pod	9392	0644	edit dl rm
perl5220delta.pod	130963	0644	edit dl rm
perl5221delta.pod	10767	0644	edit dl rm
perl5222delta.pod	12629	0644	edit dl rm
perl5223delta.pod	8456	0644	edit dl rm
perl5224delta.pod	4460	0644	edit dl rm
perl5240delta.pod	64923	0644	edit dl rm
perl5241delta.pod	8215	0644	edit dl rm
perl5242delta.pod	4113	0644	edit dl rm
perl5243delta.pod	11428	0644	edit dl rm
perl5244delta.pod	4510	0644	edit dl rm
perl5260delta.pod	101835	0644	edit dl rm
perl5261delta.pod	7927	0644	edit dl rm
perl5262delta.pod	7880	0644	edit dl rm
perl5263delta.pod	7067	0644	edit dl rm
perl5280delta.pod	72113	0644	edit dl rm
perl5281delta.pod	4639	0644	edit dl rm
perl5282delta.pod	6200	0644	edit dl rm
perl5283delta.pod	5111	0644	edit dl rm
perl5300delta.pod	41281	0644	edit dl rm
perl5301delta.pod	5730	0644	edit dl rm
perl5302delta.pod	4682	0644	edit dl rm
perl5303delta.pod	4980	0644	edit dl rm
perl5320delta.pod	54601	0644	edit dl rm
perl5321delta.pod	7003	0644	edit dl rm
perlaix.pod	20438	0644	edit dl rm
perlamiga.pod	5749	0644	edit dl rm
perlandroid.pod	8222	0644	edit dl rm
perlapi.pod	493106	0644	edit dl rm
perlapio.pod	21336	0644	edit dl rm
perlartistic.pod	7010	0644	edit dl rm
perlbook.pod	8386	0644	edit dl rm
perlboot.pod	294	0644	edit dl rm
perlbot.pod	304	0644	edit dl rm
perlbs2000.pod	7994	0644	edit dl rm
perlcall.pod	56738	0644	edit dl rm
perlcheat.pod	4480	0644	edit dl rm
perlclib.pod	9607	0644	edit dl rm
perlcn.pod	4763	0644	edit dl rm
perlcommunity.pod	6983	0644	edit dl rm
perlcygwin.pod	27202	0644	edit dl rm
perldata.pod	49782	0644	edit dl rm
perldbmfilter.pod	4981	0644	edit dl rm
perldebguts.pod	42331	0644	edit dl rm
perldebtut.pod	22152	0644	edit dl rm
perldebug.pod	39383	0644	edit dl rm
perldelta.pod	7003	0644	edit dl rm
perldeprecation.pod	20825	0644	edit dl rm
perldiag.pod	296986	0644	edit dl rm
perldos.pod	10522	0644	edit dl rm
perldsc.pod	25614	0644	edit dl rm
perldtrace.pod	7959	0644	edit dl rm
perlebcdic.pod	84345	0644	edit dl rm
perlembed.pod	37569	0644	edit dl rm
perlexperiment.pod	7234	0644	edit dl rm
perlfork.pod	13355	0644	edit dl rm
perlform.pod	16608	0644	edit dl rm
perlfreebsd.pod	1623	0644	edit dl rm
perlfunc.pod	403777	0644	edit dl rm
perlgit.pod	29591	0644	edit dl rm
perlgov.pod	14481	0644	edit dl rm
perlgpl.pod	13815	0644	edit dl rm
perlguts.pod	162103	0644	edit dl rm
perlhack.pod	43157	0644	edit dl rm
perlhacktips.pod	57692	0644	edit dl rm
perlhacktut.pod	6153	0644	edit dl rm
perlhaiku.pod	1508	0644	edit dl rm
perlhist.pod	56164	0644	edit dl rm
perlhpux.pod	30609	0644	edit dl rm
perlhurd.pod	1994	0644	edit dl rm
perlintern.pod	83565	0644	edit dl rm
perlinterp.pod	33715	0644	edit dl rm
perlintro.pod	22135	0644	edit dl rm
perliol.pod	34804	0644	edit dl rm
perlipc.pod	71529	0644	edit dl rm
perlirix.pod	4415	0644	edit dl rm
perljp.pod	8431	0644	edit dl rm
perlko.pod	12208	0644	edit dl rm
perllexwarn.pod	355	0644	edit dl rm
perllinux.pod	2007	0644	edit dl rm
perllocale.pod	74112	0644	edit dl rm
perllol.pod	9580	0644	edit dl rm
perlmacos.pod	998	0644	edit dl rm
perlmacosx.pod	12124	0644	edit dl rm
perlmod.pod	26197	0644	edit dl rm
perlmodinstall.pod	10261	0644	edit dl rm
perlmodlib.pod	76348	0644	edit dl rm
perlmodstyle.pod	22588	0644	edit dl rm
perlmroapi.pod	3280	0644	edit dl rm
perlnetware.pod	6648	0644	edit dl rm
perlnewmod.pod	11037	0644	edit dl rm
perlnumber.pod	8353	0644	edit dl rm
perlobj.pod	35717	0644	edit dl rm
perlootut.pod	26757	0644	edit dl rm
perlop.pod	148888	0644	edit dl rm
perlopenbsd.pod	1224	0644	edit dl rm
perlopentut.pod	15223	0644	edit dl rm
perlos2.pod	93348	0644	edit dl rm
perlos390.pod	16527	0644	edit dl rm
perlos400.pod	4765	0644	edit dl rm
perlpacktut.pod	51370	0644	edit dl rm
perlperf.pod	49881	0644	edit dl rm
perlplan9.pod	5125	0644	edit dl rm
perlpod.pod	23076	0644	edit dl rm
perlpodspec.pod	68628	0644	edit dl rm
perlpolicy.pod	26562	0644	edit dl rm
perlport.pod	88693	0644	edit dl rm
perlpragma.pod	5176	0644	edit dl rm
perlqnx.pod	6673	0644	edit dl rm
perlre.pod	130817	0644	edit dl rm
perlreapi.pod	30245	0644	edit dl rm
perlrebackslash.pod	32285	0644	edit dl rm
perlrecharclass.pod	49707	0644	edit dl rm
perlref.pod	35432	0644	edit dl rm
perlreftut.pod	18826	0644	edit dl rm
perlreguts.pod	39301	0644	edit dl rm
perlrepository.pod	509	0644	edit dl rm
perlrequick.pod	19141	0644	edit dl rm
perlreref.pod	15590	0644	edit dl rm
perlretut.pod	122527	0644	edit dl rm
perlriscos.pod	1529	0644	edit dl rm
perlrun.pod	55980	0644	edit dl rm
perlsec.pod	27601	0644	edit dl rm
perlsecpolicy.pod	19450	0644	edit dl rm
perlsolaris.pod	29843	0644	edit dl rm
perlsource.pod	7132	0644	edit dl rm
perlstyle.pod	8734	0644	edit dl rm
perlsub.pod	74405	0644	edit dl rm
perlsymbian.pod	15344	0644	edit dl rm
perlsyn.pod	45138	0644	edit dl rm
perlsynology.pod	7960	0644	edit dl rm
perlthrtut.pod	46522	0644	edit dl rm
perltie.pod	39314	0644	edit dl rm
perltoc.pod	701800	0644	edit dl rm
perltodo.pod	372	0644	edit dl rm
perltooc.pod	294	0644	edit dl rm
perltoot.pod	294	0644	edit dl rm
perltrap.pod	10623	0644	edit dl rm
perltru64.pod	8492	0644	edit dl rm
perltw.pod	4463	0644	edit dl rm
perlunicode.pod	91353	0644	edit dl rm
perlunicook.pod	25658	0644	edit dl rm
perlunifaq.pod	13644	0644	edit dl rm
perluniintro.pod	38647	0644	edit dl rm
perluniprops.pod	441614	0644	edit dl rm
perlunitut.pod	7951	0644	edit dl rm
perlutil.pod	7291	0644	edit dl rm
perlvar.pod	82577	0644	edit dl rm
perlvms.pod	50823	0644	edit dl rm
perlvos.pod	3843	0644	edit dl rm
perlwin32.pod	40317	0644	edit dl rm

Edit: /usr/share/perl5/pod/perlaix.pod (20438B)

If you read this file _as_is_, just ignore the funny characters you see.
It is written in the POD format (see pod/perlpod.pod) which is specially
designed to be readable as is.

=head1 NAME

perlaix - Perl version 5 on IBM AIX (UNIX) systems

=head1 DESCRIPTION

This document describes various features of IBM's UNIX operating
system AIX that will affect how Perl version 5 (hereafter just Perl)
is compiled and/or runs.

=head2 Compiling Perl 5 on AIX

For information on compilers on older versions of AIX, see L</Compiling
Perl 5 on older AIX versions up to 4.3.3>.

When compiling Perl, you must use an ANSI C compiler. AIX does not ship
an ANSI compliant C compiler with AIX by default, but binary builds of
gcc for AIX are widely available. A version of gcc is also included in
the AIX Toolbox which is shipped with AIX.

=head2 Supported Compilers

Currently all versions of IBM's "xlc", "xlc_r", "cc", "cc_r" or
"vac" ANSI/C compiler will work for building Perl if that compiler
works on your system.

If you plan to link Perl to any module that requires thread-support,
like DBD::Oracle, it is better to use the _r version of the compiler.
This will not build a threaded Perl, but a thread-enabled Perl. See
also L</Threaded Perl> later on.

As of writing (2010-09) only the I<IBM XL C for AIX> or I<IBM XL C/C++
for AIX> compiler is supported by IBM on AIX 5L/6.1/7.1.

The following compiler versions are currently supported by IBM:

IBM XL C and IBM XL C/C++ V8, V9, V10, V11

The XL C for AIX is integrated in the XL C/C++ for AIX compiler and
therefore also supported.

If you choose XL C/C++ V9 you need APAR IZ35785 installed
otherwise the integrated SDBM_File do not compile correctly due
to an optimization bug. You can circumvent this problem by
adding -qipa to the optimization flags (-Doptimize='-O -qipa').
The PTF for APAR IZ35785 which solves this problem is available
from IBM (April 2009 PTF for XL C/C++ Enterprise Edition for AIX, V9.0).

If you choose XL C/C++ V11 you need the April 2010 PTF (or newer)
installed otherwise you will not get a working Perl version.

Perl can be compiled with either IBM's ANSI C compiler or with gcc.
The former is recommended, as not only it can compile Perl with no
difficulty, but also can take advantage of features listed later
that require the use of IBM compiler-specific command-line flags.

If you decide to use gcc, make sure your installation is recent and
complete, and be sure to read the Perl INSTALL file for more gcc-specific
details. Please report any hoops you had to jump through to the
development team.

=head2 Incompatibility with AIX Toolbox lib gdbm

If the AIX Toolbox version of lib gdbm < 1.8.3-5 is installed on your
system then Perl will not work. This library contains the header files
/opt/freeware/include/gdbm/dbm.h|ndbm.h which conflict with the AIX
system versions. The lib gdbm will be automatically removed from the
wanted libraries if the presence of one of these two header files is
detected. If you want to build Perl with GDBM support then please install
at least gdbm-devel-1.8.3-5 (or higher).

=head2 Perl 5 was successfully compiled and tested on:

Perl   | AIX Level           | Compiler Level          | w th | w/o th
 -------+---------------------+-------------------------+------+-------
 5.12.2 |5.1 TL9 32 bit       | XL C/C++ V7             | OK   | OK
 5.12.2 |5.1 TL9 64 bit       | XL C/C++ V7             | OK   | OK
 5.12.2 |5.2 TL10 SP8 32 bit  | XL C/C++ V8             | OK   | OK
 5.12.2 |5.2 TL10 SP8 32 bit  | gcc 3.2.2               | OK   | OK
 5.12.2 |5.2 TL10 SP8 64 bit  | XL C/C++ V8             | OK   | OK
 5.12.2 |5.3 TL8 SP8 32 bit   | XL C/C++ V9 + IZ35785   | OK   | OK
 5.12.2 |5.3 TL8 SP8 32 bit   | gcc 4.2.4               | OK   | OK
 5.12.2 |5.3 TL8 SP8 64 bit   | XL C/C++ V9 + IZ35785   | OK   | OK
 5.12.2 |5.3 TL10 SP3 32 bit  | XL C/C++ V11 + Apr 2010 | OK   | OK
 5.12.2 |5.3 TL10 SP3 64 bit  | XL C/C++ V11 + Apr 2010 | OK   | OK
 5.12.2 |6.1 TL1 SP7 32 bit   | XL C/C++ V10            | OK   | OK
 5.12.2 |6.1 TL1 SP7 64 bit   | XL C/C++ V10            | OK   | OK
 5.13   |7.1 TL0 SP1 32 bit   | XL C/C++ V11 + Jul 2010 | OK   | OK
 5.13   |7.1 TL0 SP1 64 bit   | XL C/C++ V11 + Jul 2010 | OK   | OK

w th   = with thread support
 w/o th = without thread support
 OK     = tested

Successfully tested means that all "make test" runs finish with a
result of 100% OK. All tests were conducted with -Duseshrplib set.

All tests were conducted on the oldest supported AIX technology level
with the latest support package applied. If the tested AIX version is
out of support (AIX 4.3.3, 5.1, 5.2) then the last available support
level was used.

=head2 Building Dynamic Extensions on AIX

Starting from Perl 5.7.2 (and consequently 5.8.x / 5.10.x / 5.12.x)
and AIX 4.3 or newer Perl uses the AIX native dynamic loading interface
in the so called runtime linking mode instead of the emulated interface
that was used in Perl releases 5.6.1 and earlier or, for AIX releases
4.2 and earlier. This change does break backward compatibility with
compiled modules from earlier Perl releases. The change was made to make
Perl more compliant with other applications like Apache/mod_perl which are
using the AIX native interface. This change also enables the use of
C++ code with static constructors and destructors in Perl extensions,
which was not possible using the emulated interface.

It is highly recommended to use the new interface.

=head2 Using Large Files with Perl

Should yield no problems.

=head2 Threaded Perl

Should yield no problems with AIX 5.1 / 5.2 / 5.3 / 6.1 / 7.1.

IBM uses the AIX system Perl (V5.6.0 on AIX 5.1 and V5.8.2 on
AIX 5.2 / 5.3 and 6.1; V5.8.8 on AIX 5.3 TL11 and AIX 6.1 TL4; V5.10.1
on AIX 7.1) for some AIX system scripts. If you switch the links in
/usr/bin from the AIX system Perl (/usr/opt/perl5) to the newly build
Perl then you get the same features as with the IBM AIX system Perl if
the threaded options are used.

The threaded Perl build works also on AIX 5.1 but the IBM Perl
build (Perl v5.6.0) is not threaded on AIX 5.1.

Perl 5.12 an newer is not compatible with the IBM fileset perl.libext.

=head2 64-bit Perl

If your AIX system is installed with 64-bit support, you can expect 64-bit
configurations to work. If you want to use 64-bit Perl on AIX 6.1
you need an APAR for a libc.a bug which affects (n)dbm_XXX functions.
The APAR number for this problem is IZ39077.

If you need more memory (larger data segment) for your Perl programs you
can set:

/etc/security/limits
    default:                    (or your user)
        data = -1               (default is 262144 * 512 byte)

With the default setting the size is limited to 128MB.
The -1 removes this limit. If the "make test" fails please change
your /etc/security/limits as stated above.

=head2 Long doubles

IBM calls its implementation of long doubles 128-bit, but it is not
the IEEE 128-bit ("quadruple precision") which would give 116 bit of
mantissa (nor it is implemented in hardware), instead it's a special
software implementation called "double-double", which gives 106 bits
of mantissa.

There seem to be various problems in this long double implementation.
If Configure detects this brokenness, it will disable the long double support.
This can be overridden with explicit C<-Duselongdouble> (or C<-Dusemorebits>,
which enables both long doubles and 64 bit integers).  If you decide to
enable long doubles, for most of the broken things Perl has implemented
workarounds, but the handling of the special values infinity and NaN
remains badly broken: for example infinity plus zero results in NaN.

=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (threaded/32-bit)

With the following options you get a threaded Perl version which
passes all make tests in threaded 32-bit mode, which is the default
configuration for the Perl builds that AIX ships with.

rm config.sh
    ./Configure \
    -d \
    -Dcc=cc_r \
    -Duseshrplib \
    -Dusethreads \
    -Dprefix=/usr/opt/perl5_32

The -Dprefix option will install Perl in a directory parallel to the 
IBM AIX system Perl installation.

=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (32-bit)

With the following options you get a Perl version which passes 
all make tests in 32-bit mode.

rm config.sh
    ./Configure \
    -d \
    -Dcc=cc_r \
    -Duseshrplib \
    -Dprefix=/usr/opt/perl5_32

The -Dprefix option will install Perl in a directory parallel to the
IBM AIX system Perl installation.

=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (threaded/64-bit)

With the following options you get a threaded Perl version which
passes all make tests in 64-bit mode.

export OBJECT_MODE=64 / setenv OBJECT_MODE 64 (depending on your shell)

rm config.sh
 ./Configure \
 -d \
 -Dcc=cc_r \
 -Duseshrplib \
 -Dusethreads \
 -Duse64bitall \
 -Dprefix=/usr/opt/perl5_64

=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (64-bit)

With the following options you get a Perl version which passes all
make tests in 64-bit mode.

export OBJECT_MODE=64 / setenv OBJECT_MODE 64 (depending on your shell)

rm config.sh
 ./Configure \
 -d \
 -Dcc=cc_r \
 -Duseshrplib \
 -Duse64bitall \
 -Dprefix=/usr/opt/perl5_64

The -Dprefix option will install Perl in a directory parallel to the
IBM AIX system Perl installation.

If you choose gcc to compile 64-bit Perl then you need to add the
following option:

-Dcc='gcc -maix64'

=head2 Compiling Perl 5 on AIX 7.1.0

A regression in AIX 7 causes a failure in make test in Time::Piece during
daylight savings time.  APAR IV16514 provides the fix for this.  A quick
test to see if it's required, assuming it is currently daylight savings
in Eastern Time, would be to run C< TZ=EST5 date +%Z >.  This will come
back with C<EST> normally, but nothing if you have the problem.

=head2 Compiling Perl 5 on older AIX versions up to 4.3.3

Due to the fact that AIX 4.3.3 reached end-of-service in December 31,
2003 this information is provided as is. The Perl versions prior to
Perl 5.8.9 could be compiled on AIX up to 4.3.3 with the following
settings (your mileage may vary):

When compiling Perl, you must use an ANSI C compiler. AIX does not ship
an ANSI compliant C-compiler with AIX by default, but binary builds of
gcc for AIX are widely available.

At the moment of writing, AIX supports two different native C compilers,
for which you have to pay: B<xlC> and B<vac>. If you decide to use either
of these two (which is quite a lot easier than using gcc), be sure to
upgrade to the latest available patch level. Currently:

xlC.C     3.1.4.10 or 3.6.6.0 or 4.0.2.2 or 5.0.2.9 or 6.0.0.3
    vac.C     4.4.0.3  or 5.0.2.6 or 6.0.0.1

note that xlC has the OS version in the name as of version 4.0.2.0, so
you will find xlC.C for AIX-5.0 as package

xlC.aix50.rte   5.0.2.0 or 6.0.0.3

subversions are not the same "latest" on all OS versions. For example,
the latest xlC-5 on aix41 is 5.0.2.9, while on aix43, it is 5.0.2.7.

Perl can be compiled with either IBM's ANSI C compiler or with gcc.
The former is recommended, as not only can it compile Perl with no
difficulty, but also can take advantage of features listed later that
require the use of IBM compiler-specific command-line flags.

The IBM's compiler patch levels 5.0.0.0 and 5.0.1.0 have compiler
optimization bugs that affect compiling perl.c and regcomp.c,
respectively.  If Perl's configuration detects those compiler patch
levels, optimization is turned off for the said source code files.
Upgrading to at least 5.0.2.0 is recommended.

=head2 OS level

Before installing the patches to the IBM C-compiler you need to know the
level of patching for the Operating System. IBM's command 'oslevel' will
show the base, but is not always complete (in this example oslevel shows
4.3.NULL, whereas the system might run most of 4.3.THREE):

# oslevel
    4.3.0.0
    # lslpp -l | grep 'bos.rte '
    bos.rte           4.3.3.75  COMMITTED  Base Operating System Runtime
    bos.rte            4.3.2.0  COMMITTED  Base Operating System Runtime
    #

The same might happen to AIX 5.1 or other OS levels. As a side note, Perl
cannot be built without bos.adt.syscalls and bos.adt.libm installed

# lslpp -l | egrep "syscalls|libm"
    bos.adt.libm      5.1.0.25  COMMITTED  Base Application Development
    bos.adt.syscalls  5.1.0.36  COMMITTED  System Calls Application
    #

=head2 Building Dynamic Extensions on AIX E<lt> 5L

AIX supports dynamically loadable objects as well as shared libraries.
Shared libraries by convention end with the suffix .a, which is a bit
misleading, as an archive can contain static as well as dynamic members.
For Perl dynamically loaded objects we use the .so suffix also used on
many other platforms.

Note that starting from Perl 5.7.2 (and consequently 5.8.0) and AIX 4.3
or newer Perl uses the AIX native dynamic loading interface in the so
called runtime linking mode instead of the emulated interface that was
used in Perl releases 5.6.1 and earlier or, for AIX releases 4.2 and
earlier.  This change does break backward compatibility with compiled
modules from earlier Perl releases.  The change was made to make Perl
more compliant with other applications like Apache/mod_perl which are
using the AIX native interface. This change also enables the use of C++
code with static constructors and destructors in Perl extensions, which
was not possible using the emulated interface.

=head2 The IBM ANSI C Compiler

All defaults for Configure can be used.

If you've chosen to use vac 4, be sure to run 4.4.0.3. Older versions
will turn up nasty later on. For vac 5 be sure to run at least 5.0.1.0,
but vac 5.0.2.6 or up is highly recommended. Note that since IBM has
removed vac 5.0.2.1 through 5.0.2.5 from the software depot, these
versions should be considered obsolete.

Here's a brief lead of how to upgrade the compiler to the latest
level.  Of course this is subject to changes.  You can only upgrade
versions from ftp-available updates if the first three digit groups
are the same (in where you can skip intermediate unlike the patches
in the developer snapshots of Perl), or to one version up where the
"base" is available.  In other words, the AIX compiler patches are
cumulative.

vac.C.4.4.0.1 => vac.C.4.4.0.3  is OK     (vac.C.4.4.0.2 not needed)
 xlC.C.3.1.3.3 => xlC.C.3.1.4.10 is NOT OK (xlC.C.3.1.4.0 is not
                                                              available)

# ftp ftp.software.ibm.com
 Connected to service.boulder.ibm.com.
 : welcome message ...
 Name (ftp.software.ibm.com:merijn): anonymous
 331 Guest login ok, send your complete e-mail address as password.
 Password:
 ... accepted login stuff
 ftp> cd /aix/fixes/v4/
 ftp> dir other other.ll
 output to local-file: other.ll? y
 200 PORT command successful.
 150 Opening ASCII mode data connection for /bin/ls.
 226 Transfer complete.
 ftp> dir xlc xlc.ll
 output to local-file: xlc.ll? y
 200 PORT command successful.
 150 Opening ASCII mode data connection for /bin/ls.
 226 Transfer complete.
 ftp> bye
 ... goodbye messages
 # ls -l *.ll
 -rw-rw-rw-   1 merijn   system    1169432 Nov  2 17:29 other.ll
 -rw-rw-rw-   1 merijn   system      29170 Nov  2 17:29 xlc.ll

On AIX 4.2 using xlC, we continue:

# lslpp -l | fgrep 'xlC.C '
   xlC.C                     3.1.4.9  COMMITTED  C for AIX Compiler
   xlC.C                     3.1.4.0  COMMITTED  C for AIX Compiler
 # grep 'xlC.C.3.1.4.*.bff' xlc.ll
 -rw-r--r--   1 45776101 1       6286336 Jul 22 1996  xlC.C.3.1.4.1.bff
 -rw-rw-r--   1 45776101 1       6173696 Aug 24 1998  xlC.C.3.1.4.10.bff
 -rw-r--r--   1 45776101 1       6319104 Aug 14 1996  xlC.C.3.1.4.2.bff
 -rw-r--r--   1 45776101 1       6316032 Oct 21 1996  xlC.C.3.1.4.3.bff
 -rw-r--r--   1 45776101 1       6315008 Dec 20 1996  xlC.C.3.1.4.4.bff
 -rw-rw-r--   1 45776101 1       6178816 Mar 28 1997  xlC.C.3.1.4.5.bff
 -rw-rw-r--   1 45776101 1       6188032 May 22 1997  xlC.C.3.1.4.6.bff
 -rw-rw-r--   1 45776101 1       6191104 Sep  5 1997  xlC.C.3.1.4.7.bff
 -rw-rw-r--   1 45776101 1       6185984 Jan 13 1998  xlC.C.3.1.4.8.bff
 -rw-rw-r--   1 45776101 1       6169600 May 27 1998  xlC.C.3.1.4.9.bff
 # wget ftp://ftp.software.ibm.com/aix/fixes/v4/xlc/xlC.C.3.1.4.10.bff
 #

On AIX 4.3 using vac, we continue:

# lslpp -l | grep 'vac.C '
  vac.C                      5.0.2.2  COMMITTED  C for AIX Compiler
  vac.C                      5.0.2.0  COMMITTED  C for AIX Compiler
 # grep 'vac.C.5.0.2.*.bff' other.ll
 -rw-rw-r--   1 45776101 1       13592576 Apr 16 2001  vac.C.5.0.2.0.bff
 -rw-rw-r--   1 45776101 1       14133248 Apr  9 2002  vac.C.5.0.2.3.bff
 -rw-rw-r--   1 45776101 1       14173184 May 20 2002  vac.C.5.0.2.4.bff
 -rw-rw-r--   1 45776101 1       14192640 Nov 22 2002  vac.C.5.0.2.6.bff
 # wget ftp://ftp.software.ibm.com/aix/fixes/v4/other/vac.C.5.0.2.6.bff
 #

Likewise on all other OS levels. Then execute the following command, and
fill in its choices

# smit install_update
  -> Install and Update from LATEST Available Software
  * INPUT device / directory for software [ vac.C.5.0.2.6.bff    ]
  [ OK ]
  [ OK ]

Follow the messages ... and you're done.

If you like a more web-like approach, a good start point can be
L<http://www14.software.ibm.com/webapp/download/downloadaz.jsp> and click
"C for AIX", and follow the instructions.

=head2 The usenm option

If linking miniperl

cc -o miniperl ... miniperlmain.o opmini.o perl.o ... -lm -lc ...

causes error like this

ld: 0711-317 ERROR: Undefined symbol: .aintl
 ld: 0711-317 ERROR: Undefined symbol: .copysignl
 ld: 0711-317 ERROR: Undefined symbol: .syscall
 ld: 0711-317 ERROR: Undefined symbol: .eaccess
 ld: 0711-317 ERROR: Undefined symbol: .setresuid
 ld: 0711-317 ERROR: Undefined symbol: .setresgid
 ld: 0711-317 ERROR: Undefined symbol: .setproctitle
 ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more
                                                            information.

you could retry with

make realclean
 rm config.sh
 ./Configure -Dusenm ...

which makes Configure to use the C<nm> tool when scanning for library
symbols, which usually is not done in AIX.

Related to this, you probably should not use the C<-r> option of
Configure in AIX, because that affects of how the C<nm> tool is used.

=head2 Using GNU's gcc for building Perl

Using gcc-3.x (tested with 3.0.4, 3.1, and 3.2) now works out of the box,
as do recent gcc-2.9 builds available directly from IBM as part of their
Linux compatibility packages, available here:

http://www.ibm.com/servers/aix/products/aixos/linux/

=head2 Using Large Files with Perl E<lt> 5L

Should yield no problems.

=head2 Threaded Perl E<lt> 5L

Threads seem to work OK, though at the moment not all tests pass when
threads are used in combination with 64-bit configurations.

You may get a warning when doing a threaded build:

"pp_sys.c", line 4640.39: 1506-280 (W) Function argument assignment 
  between types "unsigned char*" and "const void*" is not allowed.

The exact line number may vary, but if the warning (W) comes from a line
line this

hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);

in the "pp_ghostent" function, you may ignore it safely.  The warning
is caused by the reentrant variant of gethostbyaddr() having a slightly
different prototype than its non-reentrant variant, but the difference
is not really significant here.

=head2 64-bit Perl E<lt> 5L

If your AIX is installed with 64-bit support, you can expect 64-bit
configurations to work. In combination with threads some tests might
still fail.

=head2 AIX 4.2 and extensions using C++ with statics

In AIX 4.2 Perl extensions that use C++ functions that use statics
may have problems in that the statics are not getting initialized.
In newer AIX releases this has been solved by linking Perl with
the libC_r library, but unfortunately in AIX 4.2 the said library
has an obscure bug where the various functions related to time
(such as time() and gettimeofday()) return broken values, and
therefore in AIX 4.2 Perl is not linked against the libC_r.

=head1 AUTHORS

Rainer Tammer <tammer@tammer.net>

=cut

cmd: