How to manage LedgerSMB modifications.

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I have a question regarding the management of modifications made in 
LedgerSMB.  I am interested in knowing how others manage their 
modifications in light of future upgrades.  For example, we have made some 
minor modifications to pos.pl, ct.pl, and ic.pl placed in the "custom" 
directory.  Currently, if we have an upgrade I have to manually copy over 
my modifications over to the new upgraded files.  I include comments so 
that I can more easily find my modifications, but wanted to see what 
others do and if there is a better way of handling this.  Obviously, if 
the upgrade does not include any changes to the specific files that I have 
modified then I don't need to worry about going through these steps.  Just 
upgrade as normal.  Not sure though how to verify which exact files have 
been touched in the upgraded code in order to to determine if I need to 
upgrade my modified files in the "custom" directory.

On a unrelated note, what IDE's do folks use for their perl development? I 
am currently using Rational Software Architect which is an Eclipse based 
product and installed a plug-in for Perl into it.  Unfortunately, this 
product doesn't currently have the capabilities of connecting to SVN, only 
CVS and Clearcase.

Best Regards,
Steven Marshall

Taty Lee Boutique
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