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Date: Sat, 12 Mar 2011 02:48:58 -0500
From: Rafael Kitover <rkitover AT cpan DOT org>
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Subject: Re: Perl: Operation "bool": no method found
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On 3/11/2011 2:02 PM, Reini Urban wrote:
> 2011/3/9 Ken Brown:
>> On 3/8/2011 8:42 PM, Rafael Kitover wrote:
>>> On 3/8/2011 2:14 PM, Ken Brown wrote:
>>>>
>>>> I'm trying to build biber (http://biblatex-biber.sourceforge.net/) for
>>>> Cygwin.  It is written in Perl.  The documentation says to start by
>>>> running `perl Build.PL' in order to make sure that I have all the
>>>> required modules.  This fails as follows:
>>>>
>>>> $ perl Build.PL
>>>> Operation "bool": no method found, argument in overloaded package
>>>> version at /usr/lib/perl5/5.10/Module/Build/Base.pm line 1568.
>>>>
>>>> Line 1568 of Base.pm is
>>>>
>>>>   return $^V ? $self->perl_version_to_float(sprintf "%vd", $^V) : $];
>>>>
>>>> I know practically nothing about Perl, but I was hoping I could still
>>>> build biber by following instructions.  I would appreciate any hints as
>>>> to how to track down the problem.  I'm attaching Build.PL as well as
>>>> cygcheck output.
>>>>
>>>> Ken
>>>
>>> I had similar bizarre error messages related to $^V, specifically the
>>> construct sprintf "%vd", $^V, in my case related to CPAN::Reporter for
>>> doing test reports from cpan shell.
>>>
>>> This is something related to the $^V being a version.pm object, as it is
>>> in new perls, but the version class not being available for some reason,
>>> hence perl trying to call nonexistant overloaded methods.
>>>
>>> Reini, what do you think?
>>
>> Problem solved: I asked for help on the biblatex-biber forum and was told
>> that Cygwin's Module::Build module is outdated and needs to be updated via
>>
>>  perl -MCPAN -e "install Module::Build"
>>
>> This worked.
> 
> Oh my, Module::Build is my special friend and should die a painful death IMHO.
> Looks like I need to roll another small update this weekend.

Do you mean updating the version of Module::Build? That just hides the
actual problem...

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