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RedHat 9 (Linux i386) - man page for perlvmesa (redhat section 1)

PERLVMESA(1)			 Perl Programmers Reference Guide		     PERLVMESA(1)

NAME
       README.vmesa - building and installing Perl for VM/ESA.

SYNOPSIS
       This document will help you Configure, build, test and install Perl on VM/ESA.

DESCRIPTION
       This is a fully ported perl for VM/ESA 2.3.0.  It may work on other versions, but that's
       the one we've tested it on.

       If you've downloaded the binary distribution, it needs to be installed below /usr/local.
       Source code distributions have an automated `make install` step that means you do not need
       to extract the source code below /usr/local (though that is where it will be installed by
       default).  You may need to worry about the networking configuration files discussed in the
       last bullet below.

       Unpacking Perl Distribution on VM/ESA

       To extract an ASCII tar archive on VM/ESA, try this:

	  pax -o to=IBM-1047,from=ISO8859-1 -r < latest.tar

       Setup Perl and utilities on VM/ESA

       GNU make for VM/ESA, which may be required for the build of perl, is available from:

	 http://vm.marist.edu/~neale/vmoe.html

       Configure Perl on VM/ESA

       Once you've unpacked the distribution, run Configure (see INSTALL for full discussion of
       the Configure options), and then run make, then "make test" then "make install" (this last
       step may require UID=0 privileges).

       There is a "hints" file for vmesa that specifies the correct values for most things.  Some
       things to watch out for are:

       o   this port does support dynamic loading but it's not had much testing

       o   Don't turn on the compiler optimization flag "-O".  There's a bug in the compiler
	   (APAR PQ18812) that generates some bad code the optimizer is on.

       o   As VM/ESA doesn't fully support the fork() API programs relying on this call will not
	   work. I've replaced fork()/exec() with spawn() and the standalone exec() with spawn().
	   This has a side effect when opening unnamed pipes in a shell script: there is no child
	   process generated under.

       o   At the moment the hints file for VM/ESA basically bypasses all of the automatic con-
	   figuration process.	This is because Configure relies on: 1. The header files living
	   in the Byte File System (you could put the there if you want); 2. The C preprocessor
	   including the #include statements in the preprocessor output (.i) file.

       Testing Anomalies of Perl on VM/ESA

       The `make test` step runs a Perl Verification Procedure, usually before installation.  As
       the 5.6.1 kit was being assembled the following "failures" were known to appear on some
       machines during `make test` (mostly due to ASCII vs. EBCDIC conflicts), your results may
       differ:

       [the list of failures being compiled]

       Usage Hints for Perl on VM/ESA

       When using perl on VM/ESA please keep in mind that the EBCDIC and ASCII character sets are
       different.  Perl builtin functions that may behave differently under EBCDIC are mentioned
       in the perlport.pod document.

       OpenEdition (UNIX System Services) does not (yet) support the #! means of script invoca-
       tion.  See:

	   head `whence perldoc`

       for an example of how to use the "eval exec" trick to ask the shell to have perl run your
       scripts for you.

AUTHORS
       Neale Ferguson.

SEE ALSO
       INSTALL, perlport, perlebcdic.

       Mailing list for Perl on VM/ESA

       If you are interested in the VM/ESA, z/OS (formerly known as OS/390) and POSIX-BC (BS2000)
       ports of Perl then see the perl-mvs mailing list.  To subscribe, send an empty message to
       perl-mvs-subscribe@perl.org.

       See also:

	   http://lists.perl.org/showlist.cgi?name=perl-mvs

       There are web archives of the mailing list at:

	   http://www.xray.mpe.mpg.de/mailing-lists/perl-mvs/
	   http://archive.develooper.com/perl-mvs@perl.org/

perl v5.8.0				    2003-02-18				     PERLVMESA(1)


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