From: Tanu Kaskinen <tanu.kaskinen@linux.intel.com>
Date: Sat, 3 May 2014 08:52:12 +0000 (+0300)
Subject: path-util: add path_make_relative()
X-Git-Tag: v213~124
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=7cb9c51ce81818c200f27de4db4a4076cbe4265b;hp=7cb9c51ce81818c200f27de4db4a4076cbe4265b;p=elogind.git

path-util: add path_make_relative()

In user_dirs() in path-lookup.c, I want to replace this:
        symlink("../../../.config/systemd/user", data_home);
with
        symlink(config_home, data_home);
to avoid hardcoding .config when XDG_CONFIG_HOME is set.

The problem is that config_home is an absolute path, and it's better
to make the symlink relative. path_make_relative() is an utility
function that converts an absolute path into a relative one.
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