oprofile: Determine the root home directory dynamically

This commit detects the root home directory dynamically with changes to
the oprofile gui app source.

The commit replaces an earlier fix that detected and adjusted a
'non-standard' root home directory at build time.  The advantage of this
patch is that the oprofile tools are adjusted to the current run-time
path to ~root, not the build time path.

Upstream-Status: Inappropriate [OE specific]

Signed-off-by: Dave Lerner <dave.lerner@windriver.com>

Index: oprofile-1.0.0/doc/oprofile.html
===================================================================
--- oprofile-1.0.0.orig/doc/oprofile.html	2014-11-03 17:55:31.511034857 +0000
+++ oprofile-1.0.0/doc/oprofile.html	2014-11-03 17:57:26.415037988 +0000
@@ -1563,8 +1563,8 @@
 		<span class="emphasis"><em>must</em></span> stop it in a controlled manner in order to process
 		the profile data it has collected.  Use <code class="code">kill -SIGINT &lt;operf-PID&gt;</code>
 		for this purpose. It is recommended that when running <span class="command"><strong>operf</strong></span>
-		with this option, your current working directory should be <code class="filename">/root</code> or a subdirectory
-		of <code class="filename">/root</code> to avoid storing sample data files in locations accessible by regular users.
+		with this option, your current working directory should be <code class="filename">~root</code> or a subdirectory
+		of <code class="filename">~root</code> to avoid storing sample data files in locations accessible by regular users.
 		</p>
               </dd>
               <dt>
Index: oprofile-1.0.0/doc/oprofile.xml
===================================================================
--- oprofile-1.0.0.orig/doc/oprofile.xml	2014-11-03 17:55:31.515034857 +0000
+++ oprofile-1.0.0/doc/oprofile.xml	2014-11-03 17:58:03.719039005 +0000
@@ -654,8 +654,8 @@
 		<emphasis>must</emphasis> stop it in a controlled manner in order to process
 		the profile data it has collected.  Use <code>kill -SIGINT &lt;operf-PID&gt;</code>
 		for this purpose. It is recommended that when running <command>operf</command>
-		with this option, your current working directory should be <filename>/root</filename> or a subdirectory
-		of <filename>/root</filename> to avoid storing sample data files in locations accessible by regular users.
+		with this option, your current working directory should be <filename>~root</filename> or a subdirectory
+		of <filename>~root</filename> to avoid storing sample data files in locations accessible by regular users.
 		</para></listitem>
 	</varlistentry>
 	<varlistentry>