[lfs-dev] LFS 7.10: 2.2. Host System Requirements: Perl version OK: module missing

Pierre Labastie pierre.labastie at neuf.fr
Tue Dec 13 09:30:58 PST 2016


On 13/12/2016 17:36, Bruce Dubbs wrote:
> akhiezer wrote:
>>> From: Bruce Dubbs <bruce.dubbs at gmail.com>
>>> Date: Mon, 12 Dec 2016 20:02:22 -0600
>>> Subject: Re: [lfs-dev] LFS 7.10: 2.2. Host System Requirements: Perl 
>>> version
>>>   OK: module missing
>>>
>>> Kevin Buckley wrote:
>>>> Hi there,
>>>>
>>>> am currently building a 7.10 from a very basic Ubuntu build host 
>>>> that I had
>>>> debootstrapped.
>>>>
>>>> For completeness, I did run the
>>>>
>>>> version-check.sh
>>>>
>>>> as I worked through the book and everything reported OK.
>>>>
>>>>
>>>> A bit further into the build, though, I was told that I didn't have 
>>>> the
>>>>
>>>> Getopt::Std.pm
>>>>
>>>> module.
>>>>
>>>> Easy enough to fix and whilst it might be "overkill" for the book, 
>>>> which
>>>> probably assumes that folk have a build host that's not as stripped 
>>>> down
>>>> as a debootstrapped OS install, it struck me that might be worth 
>>>> adding
>>>> in an explicit check for that one Perl module ?
>>>
>>> The file, AFAICT is /usr/lib/perl5/*/Getopt/Std.pm.
>>>
>>> Why did you strip that out?  This is essentially a library. We don't
>>> search for every library that we need and Getopt/Std.pm is part of a
>>> standard perl install.
>>>
>>> I am against adding this to version-check.sh because it is too much 
>>> of an
>>> edge case, but I am open to other opinions.
>>>
>>
>>
>> Can be useful in helping automate host-os requirements: strace'ing a
>> build shows - at least in theory - all that is accessed of host-os;
>> although strace can o/c interfere with what it's tracing.
>
> I'm willing to do it if someone can show me a distro where a 
> apt-get/yum/dnf etc install of perl does not install Getopt::Std.pm.
>
> In the same vein, I am thinking about removing the library consistency 
> check because that was a similar one-off problem where the solution  
> tends to confuse more than it helps.
>
>   -- Bruce
>
This last example is a good one: there is a note about the presence or 
absence of libgmp.la, libmpfr.la, etc, and also a shell script for 
testing. I'd say that we could make notes about non-standard 
configurations, but not write a test for them...

Regards
Pierre



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