Re: [MacPerl] Why does MacPerl 5.18r4 install SysErrs.err?

[Xah Lee <xah@best.com>]

In a message Mattthias Neeracher explained what's SysErr.err and "/etc/services" insalled by MacPerl in the system folder.

Could we have those explaination incoporated in some readme file? It seems lots of Mac users want to know about these things. (me included.)

 Xah, xah@best.com
 http://www.best.com/~xah/PageTwo_dir/MathPrograms_dir/mathPrograms.html
 Mountain View, CA, USA


>
>>So, when I installed MacPerl 5.18r4 this evening, I noticed that the MacPerl
>>v5.18r4 Installer also installed a file called "SysErrs.err", which from Get
>>Info, appears to be v3.3.3, dated November 8, 1994.  I also found a file
>>called "/etc/services" in my Preferences Folder, dated July 30, 1993.
>>I'm reasonably certain that these files were installed by the MacPerl 5.18r4
>>installer.
>
>Yes, you're right, and these sould be the only files installed by the MacPerl
>installer into the system folder (Internet Config installs an extension the
>first time you run it).
>
>>What are these,
>
>SysErrs.err contains the cleartext messages for the error codes in $^E.
>/etc/services contains service-to-port mappings for getservbynumber and
>getservbyname.
>
>> why are they installed, why should I keep them in my System
>>Folder, 
>
>Because that's where the code goes looking for them.
>
>>and what happens if they are deleted?
>
>You'll lose cleartext translations for $^E and you'll lose some of the port
>mappings and the abilities to redefine them.



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