Description:
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I'm using PEAR 1.9.0, but newer version are also affected.

PEAR doesn't honor the ext_dir configuration variable, or I didn't understand how to use it.

The ext_dir configuration variable is supposed to be used when you want to install extensions in a custom directory. This is useful to allow unprivileged user to install php extensions in their home directories.

To make the ext_dir configuration variable working I fixed the build function in Builder.php to use ext_dir as a prefix for the destination path of the extension. I also fixed the enableExtension function in Command/Install.php to write the full path to the extension in php.ini when ext_dir is set.

While these fixes fit my use case they are not perfect because they use ext_dir as a prefix instead as the full dirname for the extension. Moreover I didn't take care of possible regressions and some other places in the code certainly need to be adjusted (e.g: error messages).

The attached patch applies to SVN r313186

Best regards

PS: It's not clear where this bug should be reported, the PEAR website doesn't seem to have the concept of bugs in PEAR itself but only in packages…


Test script:
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#!/bin/sh

ext_dir=`mktemp -d`

pear config-set ext_dir $ext_dir user
pecl install mongo

rm -rf $ext_dir


Expected result:
----------------
[...]
Build process completed successfully
Installing '/tmp/tmp.km7ZJACEQ3/lib/php5/20090626/mongo.so'
install ok: channel://pecl.php.net/mongo-1.2.1
configuration option "php_ini" is not set to php.ini location
You should add "extension=/tmp/tmp.km7ZJACEQ3/lib/php5/20090626/mongo.so" to php.ini
%

Actual result:
--------------
[...]
Build process completed successfully
Installing '/usr/lib/php5/20090626/mongo.so'
install ok: channel://pecl.php.net/mongo-1.2.1
configuration option "php_ini" is not set to php.ini location
You should add "extension=mongo.so" to php.ini
%