[royce] 17583: don't crash if path == base_directory.

don't crash if path == base_directory.
sorry I forgot to commit my changes to this file last night
Modified: trunk/reactos/tools/rbuild/XML.cpp
  _____

Modified: trunk/reactos/tools/rbuild/XML.cpp
--- trunk/reactos/tools/rbuild/XML.cpp	2005-08-28 12:03:25 UTC (rev
17582)
+++ trunk/reactos/tools/rbuild/XML.cpp	2005-08-28 12:08:53 UTC (rev
17583)
@@ -176,7 +176,9 @@

}

string
-Path::RelativeFromDirectory ( const string& path, const string&
base_directory )
+Path::RelativeFromDirectory (
+	const string& path,
+	const string& base_directory )
 {
    vector<string> vbase, vpath, vout;
    Path::Split ( vbase, base_directory, true );
@@ -190,6 +192,8 @@
    size_t i = 0;
    while ( i < vbase.size() && i < vpath.size() && vbase[i] ==
vpath[i] )
    	++i;
+	if ( vbase.size() == vpath.size() && i == vpath.size() )
+		return ".";
    if ( i < vbase.size() )
    {
    	// path goes above our base directory, we will need some
..'s