| 1 | This document is written in pod format hence there are punctuation |
| 2 | characters in in odd places. Do not worry, you've apparently got |
| 3 | the ASCII->EBCDIC translation worked out correctly. You can read |
| 4 | more about pod in pod/perlpod.pod or the short summary in the |
| 5 | INSTALL file. |
| 6 | |
| 7 | =head1 NAME |
| 8 | |
| 9 | README.os390 - building and installing Perl for OS/390. |
| 10 | |
| 11 | =head1 SYNOPSIS |
| 12 | |
| 13 | This document will help you Configure, build, test and install Perl |
| 14 | on OS/390 Unix System Services. |
| 15 | |
| 16 | =head1 DESCRIPTION |
| 17 | |
| 18 | This is a fully ported perl for OS/390 Release 3, 5 and 6. |
| 19 | It may work on other versions, but those are the ones we've |
| 20 | tested it on. |
| 21 | |
| 22 | You may need to carry out some system configuration tasks before |
| 23 | running the Configure script for perl. |
| 24 | |
| 25 | =head2 Unpacking |
| 26 | |
| 27 | Gunzip/gzip for OS/390 is discussed at: |
| 28 | |
| 29 | http://www.s390.ibm.com/products/oe/bpxqp1.html |
| 30 | |
| 31 | to extract an ASCII tar archive on OS/390, try this: |
| 32 | |
| 33 | pax -o to=IBM-1047,from=ISO8859-1 -r < latest.tar |
| 34 | |
| 35 | =head2 Setup and utilities |
| 36 | |
| 37 | Be sure that your yacc installation is in place including any necessary |
| 38 | parser template files. If you have not already done so then be sure to: |
| 39 | |
| 40 | cp /samples/yyparse.c /etc |
| 41 | |
| 42 | This may also be a good time to ensure that your /etc/protocol file |
| 43 | and either your /etc/resolv.conf or /etc/hosts files are in place. |
| 44 | |
| 45 | GNU make for OS/390, which may be required for the build of perl, |
| 46 | is available from: |
| 47 | |
| 48 | http://www.mks.com/s390/gnu/index.htm |
| 49 | |
| 50 | =head2 Configure |
| 51 | |
| 52 | Once you've unpacked the distribution, run "sh Configure" (see INSTALL |
| 53 | for a full discussion of the Configure options). There is a "hints" file |
| 54 | for os390 that specifies the correct values for most things. Some things |
| 55 | to watch out for include: |
| 56 | |
| 57 | =over 4 |
| 58 | |
| 59 | =item * |
| 60 | |
| 61 | Some of the parser default template files in /samples are needed in /etc. |
| 62 | In particular be sure that you at least copy /samples/yyparse.c to /etc |
| 63 | before running perl's Configure. This step ensures successful extraction |
| 64 | of EBCDIC versions of parser files such as perly.c. |
| 65 | |
| 66 | =item * |
| 67 | |
| 68 | This port doesn't support dynamic loading. Although |
| 69 | OS/390 has support for DLLs, there are some differences |
| 70 | that cause problems for perl. |
| 71 | |
| 72 | =item * |
| 73 | |
| 74 | You may see a "WHOA THERE!!!" message for $d_shmatprototype |
| 75 | it is OK to keep the recommended "define". |
| 76 | |
| 77 | =item * |
| 78 | |
| 79 | Don't turn on the compiler optimization flag "-O". There's |
| 80 | a bug in either the optimizer or perl that causes perl to |
| 81 | not work correctly when the optimizer is on. |
| 82 | |
| 83 | =item * |
| 84 | |
| 85 | Some of the configuration files in /etc used by the |
| 86 | networking APIs are either missing or have the wrong |
| 87 | names. In particular, make sure that there's either |
| 88 | an /etc/resolv.conf or and /etc/hosts, so that |
| 89 | gethostbyname() works, and make sure that the file |
| 90 | /etc/proto has been renamed to /etc/protocol (NOT |
| 91 | /etc/protocols, as used by other Unix systems). |
| 92 | |
| 93 | =back |
| 94 | |
| 95 | =head2 Build, test, install |
| 96 | |
| 97 | Simply put: |
| 98 | |
| 99 | sh Configure |
| 100 | make |
| 101 | make test |
| 102 | |
| 103 | if everything looks ok then: |
| 104 | |
| 105 | make install |
| 106 | |
| 107 | this last step may or may not require UID=0 privileges depending |
| 108 | on how you answered the questions that Configure asked and whether |
| 109 | or not you have write access to the directories you specified. |
| 110 | |
| 111 | =head2 Usage Hints |
| 112 | |
| 113 | When using perl on OS/390 please keep in mind that the EBCDIC and ASCII |
| 114 | character sets are different. Perl builtin functions that may behave |
| 115 | differently under EBCDIC are mentioned in the perlport.pod document. |
| 116 | |
| 117 | OpenEdition (UNIX System Services) does not (yet) support the #! means |
| 118 | of script invokation. |
| 119 | See: |
| 120 | |
| 121 | head `whence perldoc` |
| 122 | |
| 123 | for an example of how to use the "eval exec" trick to ask the shell to |
| 124 | have perl run your scripts for you. |
| 125 | |
| 126 | =head2 Extensions |
| 127 | |
| 128 | You can build xs based extensions to Perl for OS/390 but will need to |
| 129 | follow the instructions in ExtUtils::MakeMaker for building statically |
| 130 | linked perl binaries. In most cases people have reported better |
| 131 | results with GNU make rather than the system's /bin/make. |
| 132 | |
| 133 | =head1 AUTHORS |
| 134 | |
| 135 | David Fiander and Peter Prymmer. |
| 136 | |
| 137 | =head1 SEE ALSO |
| 138 | |
| 139 | L<INSTALL>, L<perlport>, L<ExtUtils::MakeMaker>. |
| 140 | |
| 141 | =head2 Mailing list |
| 142 | |
| 143 | The Perl Institute (http://www.perl.org/) maintains a perl-mvs |
| 144 | mailing list of interest to all folks building and/or |
| 145 | using perl on EBCDIC platforms. To subscibe, send a message of: |
| 146 | |
| 147 | subscribe perl-mvs |
| 148 | |
| 149 | to majordomo@perl.org. |
| 150 | |
| 151 | =head1 HISTORY |
| 152 | |
| 153 | This document was originally written by David Fiander for the 5.005 |
| 154 | release of Perl. |
| 155 | |
| 156 | This document was podified for the 5.005_03 release of perl 11 March 1999. |
| 157 | |
| 158 | =cut |