in reply to Re^3: How to install Math::GSL module
in thread How to install Math::GSL module

Hmm, ok. I actually don't have anything loaded in my perl/site/lib folder except a sitecustomize.pl script.
When I run this command:
perl -MMath::GSL::Histogram=":all" -we "gsl_histogram_alloc(100);"


I get this as an output error. <br>


Can't locate Math/GSL/Histogram.pm in @INC (@INC contains: C:/Program 
+Files/Perl
/perl/site/lib C:/Program Files/Perl/perl/lib .).
BEGIN failed--compilation aborted.

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Another thing, all my modules are at C:/Program Files/Perl/lib, not perl/site/lib. Is this a problem since the @INC array is looking at both locations for modules. I uninstalled the MATH module and used PPM to reinstall it the way people have suggested but I don't see the MATH module in either directory. Is it supposed to show up in either perl/lib or perl/site/lib? Do you guys think I should reinstall perl?

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Re^5: How to install Math::GSL module
by syphilis (Archbishop) on Jan 27, 2009 at 06:13 UTC
    You're @INC consists of "C:/Program Files/Perl/perl/site/lib", "C:/Program Files/Perl/perl/lib" and "." (the current directory). Based on that, one would expect that, having installed Math::GSL, the file C:/Program Files/Perl/perl/site/lib/Math/GSL/Histogram.pm would now exist, but it obviously doesn't. It's absence is *not* a good sign.

    Do you guys think I should reinstall perl?

    Yes, I think so. Installing a module using PPM should not present these types of problems - and the fact that you're still getting errors with this PPM installation of Math::GSL suggests to me that something has got broken.

    Also, it's not a good idea to install perl into a directory whose name contains any spaces (such as "Program Files"). Doing so can create difficulties. It doesn't matter much where perl is installed, but it's definitely best to avoid directories like "Program Files" - there's nothing wrong with installing into simply C:\perl.

    So yes - I would perform a fresh install of perl. Then run the 'ppm install' command to install Math::GSL (and the 2 gsl DLL's). That's all you should need to do.

    Cheers,
    Rob
[reply]
      Thanks. After reinstall that did the trick. Thanks for all the help!
[reply]

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