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Re: Is there an easy way to clean PERL in Fedora 10 and reinstall PERL

by davorg (Chancellor)
on Jul 16, 2009 at 12:15 UTC ( #780680=note: print w/replies, xml ) Need Help??


in reply to Is there an easy way to clean PERL in Fedora 10 and reinstall PERL

What do you mean by "I cannot invoke CPAN from the shell"? What unexpected behaviour do you see?

I don't recommend mixing RPM-installed modules with CPAN-installed modules in the same Perl installation. It's bound to lead to problems eventually (there's a chance it even led to whatever problems you're currently having).

The system Perl that comes with Fedora already has a number of RPM-installed modules with it. I therefore strongly recommend only installing new modules using RPM or yum. I know that not all CPAN modules are available that way but you have a couple of options. You can find new repositories that have other CPAN modules available (I run one such repository - and I take requests for new modules) or you can learn how to create your own RPMs from CPAN modules - it's really not that hard.

See my presentation Perl in RPM-Land for more details.

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See the Copyright notice on my home node.

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[Corion]: GrandFather: Ah, (hardware) APIs - I have a similar situation with Chrome and its API... It is fairly underdocumented and I guess I have to hunt...
[Corion]: ... down supposedly working code to find out what I'm supposed to do
[GrandFather]: I haven't any "working code" to inspect! I have to find ways to generate reference signals then check the numbers I get at the far end match.
[GrandFather]: That's ok when the signal is a voltage, but there are three axis accelerometers, gyroscopes and magnetometers in these things! A little invention is needed at times!
[Corion]: GrandFather: Yeah, in that aspect, hardware is far more a black box than software
[GrandFather]: Oh, and the manufacturer tells lies too! I'm sure they don't mean to, but I know for sure some of the stuff they say is just wrong. It's possible they don't understand what we are asking, but that's not a good look either
[Corion]: GrandFather: Ah, unit testing hardware is fun, especially when the hardware is uncalibrated ...
[GrandFather]: Us: "What scaling do we need to apply to the numbers from the SDK for the wibble?". Them: "Oh, the numbers from the SDK for the wibble are already correct, they don't need scaling"

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