| 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 |
| |
| perlos400 - Perl version 5 on OS/400 |
| |
| =head1 DESCRIPTION |
| |
| This document describes various features of IBM's OS/400 operating |
| system that will affect how Perl version 5 (hereafter just Perl) is |
| compiled and/or runs. |
| |
| By far the easiest way to build Perl for OS/400 is to use the PASE |
| (Portable Application Solutions Environment), for more information see |
| L<http://www.iseries.ibm.com/developer/factory/pase/index.html> |
| This environment allows one to use AIX APIs while programming, and it |
| provides a runtime that allows AIX binaries to execute directly on the |
| PowerPC iSeries. |
| |
| =head2 Compiling Perl for OS/400 PASE |
| |
| The recommended way to build Perl for the OS/400 PASE is to build the |
| Perl 5 source code (release 5.8.1 or later) under AIX. |
| |
| The trick is to give a special parameter to the Configure shell script |
| when running it on AIX: |
| |
| sh Configure -DPASE ... |
| |
| The default installation directory of Perl under PASE is /QOpenSys/perl. |
| This can be modified if needed with Configure parameter -Dprefix=/some/dir. |
| |
| Starting from OS/400 V5R2 the IBM Visual Age compiler is supported |
| on OS/400 PASE, so it is possible to build Perl natively on OS/400. |
| The easier way, however, is to compile in AIX, as just described. |
| |
| If you don't want to install the compiled Perl in AIX into /QOpenSys |
| (for packaging it before copying it to PASE), you can use a Configure |
| parameter: -Dinstallprefix=/tmp/QOpenSys/perl. This will cause the |
| "make install" to install everything into that directory, while the |
| installed files still think they are (will be) in /QOpenSys/perl. |
| |
| If building natively on PASE, please do the build under the /QOpenSys |
| directory, since Perl is happier when built on a case sensitive filesystem. |
| |
| =head2 Installing Perl in OS/400 PASE |
| |
| If you are compiling on AIX, simply do a "make install" on the AIX box. |
| Once the install finishes, tar up the /QOpenSys/perl directory. Transfer |
| the tarball to the OS/400 using FTP with the following commands: |
| |
| > binary |
| > site namefmt 1 |
| > put perl.tar /QOpenSys |
| |
| Once you have it on, simply bring up a PASE shell and extract the tarball. |
| |
| If you are compiling in PASE, then "make install" is the only thing you |
| will need to do. |
| |
| The default path for perl binary is /QOpenSys/perl/bin/perl. You'll |
| want to symlink /QOpenSys/usr/bin/perl to this file so you don't have |
| to modify your path. |
| |
| =head2 Using Perl in OS/400 PASE |
| |
| Perl in PASE may be used in the same manner as you would use Perl on AIX. |
| |
| Scripts starting with #!/usr/bin/perl should work if you have |
| /QOpenSys/usr/bin/perl symlinked to your perl binary. This will not |
| work if you've done a setuid/setgid or have environment variable |
| PASE_EXEC_QOPENSYS="N". If you have V5R1, you'll need to get the |
| latest PTFs to have this feature. Scripts starting with |
| #!/QOpenSys/perl/bin/perl should always work. |
| |
| =head2 Known Problems |
| |
| When compiling in PASE, there is no "oslevel" command. Therefore, |
| you may want to create a script called "oslevel" that echoes the |
| level of AIX that your version of PASE runtime supports. If you're |
| unsure, consult your documentation or use "4.3.3.0". |
| |
| If you have test cases that fail, check for the existence of spool files. |
| The test case may be trying to use a syscall that is not implemented |
| in PASE. To avoid the SIGILL, try setting the PASE_SYSCALL_NOSIGILL |
| environment variable or have a handler for the SIGILL. If you can |
| compile programs for PASE, run the config script and edit config.sh |
| when it gives you the option. If you want to remove fchdir(), which |
| isn't implement in V5R1, simply change the line that says: |
| |
| d_fchdir='define' |
| |
| to |
| |
| d_fchdir='undef' |
| |
| and then compile Perl. The places where fchdir() is used have |
| alternatives for systems that do not have fchdir() available. |
| |
| =head2 Perl on ILE |
| |
| There exists a port of Perl to the ILE environment. This port, however, |
| is based quite an old release of Perl, Perl 5.00502 (August 1998). |
| (As of July 2002 the latest release of Perl is 5.8.0, and even 5.6.1 |
| has been out since April 2001.) If you need to run Perl on ILE, though, |
| you may need this older port: L<http://www.cpan.org/ports/#os400> |
| Note that any Perl release later than 5.00502 has not been ported to ILE. |
| |
| If you need to use Perl in the ILE environment, you may want to consider |
| using Qp2RunPase() to call the PASE version of Perl. |
| |
| =head1 AUTHORS |
| |
| Jarkko Hietaniemi <jhi@iki.fi> |
| Bryan Logan <bryanlog@us.ibm.com> |
| David Larson <larson1@us.ibm.com> |
| |
| =cut |