1 | README.vmesa |
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2 | |
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3 | This is a fully ported perl for VM/ESA 2.3.0. It may work on |
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4 | other versions, but that's the one we've tested it on. |
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5 | |
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6 | If you've downloaded the binary distribution, it needs to be |
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7 | installed below /usr/local. Source code distributions have an |
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8 | automated `make install` step that means you do not need to extract |
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9 | the source code below /usr/local (though that is where it will be |
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10 | installed by default). You may need to worry about the networking |
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11 | configuration files discussed in the last bullet below. |
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12 | |
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13 | To extract an ASCII tar archive on VM/ESA, try this: |
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14 | |
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15 | pax -o to=IBM-1047,from=ISO8859-1 -r < latest.tar |
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16 | |
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17 | GNU make for VM/ESA, which may be required for the build of perl, |
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18 | is available from: |
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19 | |
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20 | http://pucc.princeton.edu/~neale/vmoe.html |
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21 | |
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22 | Once you've unpacked the distribution, run Configure (see INSTALL for |
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23 | full discussion of the Configure options), and then run make, then |
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24 | "make test" then "make install" (this last step may require UID=0 |
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25 | privileges) |
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26 | |
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27 | There is a "hints" file for vmesa that specifies the correct values |
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28 | for most things. Some things to watch out for are |
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29 | |
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30 | - this port does support dynamic loading but it's not had much testing |
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31 | |
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32 | - Don't turn on the compiler optimization flag "-O". There's |
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33 | a bug in the compiler (APAR PQ18812) that generates some bad code |
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34 | the optimizer is on. |
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35 | |
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36 | - As VM/ESA doesn't fully support the fork() API programs relying on |
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37 | this call will not work. I've replaced fork()/exec() with spawn() |
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38 | and the standalone exec() with spawn(). This has a side effect when |
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39 | opening unnamed pipes in a shell script: there is no child process |
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40 | generated under. |
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41 | |
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42 | - At the moment the hints file for VM/ESA basically bypasses all of the |
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43 | automatic configuration process. This is because Configure relies on: |
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44 | 1. The header files living in the Byte File System (you could put the |
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45 | there if you want; |
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46 | 2. The C preprocessor including the #include statements in the |
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47 | preprocessor output (.i) file. |
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48 | |
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49 | When using perl on VM/ESA please keep in mind that the EBCDIC and ASCII |
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50 | character sets are different. Perl builtin functions that may behave |
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51 | differently under EBCDIC are mentioned in the perlport.pod document. |
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52 | |
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53 | OpenEdition (UNIX System Services) does not (yet) support the #! means |
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54 | of script invokation. |
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55 | See: |
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56 | |
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57 | head `whence perldoc` |
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58 | |
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59 | for an example of how to use the "eval exec" trick to ask the shell to |
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60 | have perl run your scripts for you. |
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61 | |
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62 | If you are interested in the VM and OS/390 ports of perl then see the |
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63 | perl-mvs mailing list: The Perl Institute (http://www.perl.org/) |
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64 | maintains a mailing list of interest to all folks building and/or |
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65 | using perl on EBCDIC platforms. To subscibe, send a message of: |
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66 | |
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67 | subscribe perl-mvs |
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68 | |
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69 | to majordomo@perl.org. |
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70 | |
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71 | Regression tests: as the 5.005 kit was was being assembled |
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72 | the following "failures" were known to appear on some machines |
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73 | during `make test` (mostly due to ASCII vs. EBCDIC conflicts), |
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74 | your results may differ: |
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75 | |
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76 | [the list of failures being compiled] |
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