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https://issues.apache.org/jira/browse/COUCHDB-276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Lehnardt closed COUCHDB-276.
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    Resolution: Won't Fix

You can set additional erlang args via environment variables.

i.e. ERL_AFLAGS="-pa /path/to/libs" couchdb
or ERL_LIBS="/path/to/liibs" couchdb

will do.

>From man erl:

Environment variables
[...]
ERL_AFLAGS
The content of this environment variable will be added to the beginning of the 
command line for erl.
The -extra flag is treated specially. Its scope ends at the end of the 
environment variable content. Arguments following an -extra flag are moved on 
the command line into the -extra section, i.e. the end of the command line 
following after an -extra flag.

ERL_ZFLAGS and ERL_FLAGS
The content of these environment variables will be added to the end of the 
command line for erl.
The -extra flag is treated specially. Its scope ends at the end of the 
environment variable content. Arguments following an -extra flag are moved on 
the command line into the -extra section, i.e. the end of the command line 
following after an -extra flag.

ERL_LIBS
This environment variable contains a list of additional library directories 
that the code server will search for applications and add to the code path. See 
code(3).


> Should have a command line flag to add to the erlang load path
> --------------------------------------------------------------
>
>                 Key: COUCHDB-276
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-276
>             Project: CouchDB
>          Issue Type: Improvement
>          Components: Infrastructure
>    Affects Versions: 0.9
>            Reporter: Antony Blakey
>            Priority: Minor
>         Attachments: 
> 0001-Add-l-DIR-command-line-option-that-prepends-DIR-t.patch
>
>
> Given that the couchdb script allows new configuration files to be loaded, I 
> think you should be able to add to the erlang load path a similar fashion, so 
> that the new configuration files can refer to erlang code not included with 
> couchdb itself.

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