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Date: Thu, 5 May 2011 01:03:03 +0000 (UTC)
From: "Andrew Tunnell-Jones (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
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Subject: [jira] [Commented] (COUCHDB-1012) Utility to help plugin developers
 manage paths
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    [ https://issues.apache.org/jira/browse/COUCHDB-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029078#comment-13029078 ] 

Andrew Tunnell-Jones commented on COUCHDB-1012:
-----------------------------------------------

As far as I'm aware the only method of giving rebar additional include paths is to hardcode them in rebar.config with something like {erl_opts, [{i, "Path"}]}. Due to this I think the least friction for integrating with rebar would be an option to get the path flag free so something like this can be dropped in rebar.config:

{pre_hooks, [
	     {clean, "rm include/couch_helper.hrl"},
	     {compile, "echo -include\\(\"`pkg-config whatever`include/couchdb.hrl\"\\). > include/couch_helper.hrl"}
]}.

+1 on having a flag-free path to the lib dir for install commands. An option to get the path to local.d could be useful too.

> Utility to help plugin developers manage paths
> ----------------------------------------------
>
>                 Key: COUCHDB-1012
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1012
>             Project: CouchDB
>          Issue Type: New Feature
>          Components: Build System
>            Reporter: Randall Leeds
>         Attachments: 0001-support-pkg-config-for-plugins-COUCHDB-1012.patch
>
>
> Developers may want to write plugins (like GeoCouch) for CouchDB. Many hooks in the configuration system allow loading arbitrary Erlang modules to handle various internal tasks, but currently there is no straightforward and portable way for developers of these plugins to discover the location of the CouchDB library files.
> Two options that have been proposed are to use pkg-config or install a separate script that could be invoked (e.g. as couch-config --erl-libs) to discover important CouchDB installation paths.
> As far as I know the loudest argument against pkg-config is lack of support for Windows.

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