Re: [PATCH] gnu: perl: Fix autosplitting of 0-time source.

[Eric Bavier <bavier@member.fsf.org>]

On 2015-09-10 10:46, ludo@gnu.org wrote:
> ericbavier@openmailbox.org skribis:
> 
>> From: Eric Bavier <bavier@member.fsf.org>
>> 
>> * gnu/packages/patches/perl-autosplit-default-time.patch: New patch.
>> * gnu/packages/perl.scm (perl): Use it.
>> * gnu-system.am (dist_patch_DATA): Add it.
> 
> Good catch, OK for ‘core-updates’.  (It’s the 2nd case where we see
> assumptions about the range of an mtime.)

Ok, will push to 'core-updates'.

>> +AutoSplit will fail to create an index for files whose modification 
>> time is 0
>> +because its default time for a non-existent index is 1.  Set this 
>> default time
>> +to -1 instead.
> 
> What is the index used for?

AutoSplit uses the 'autosplit.ix' index files to catalog the file 
locations of split functions, as well as a timestamp on the last time 
the module was split, as far as I understand.  The AutoLoader module 
looks for these indices and emits a non-fatal but nonetheless 
scary-looking warning of their non-existence at runtime, which is what 
alerted me to the issue.

`~Eric