The build system had relative include paths which didn't take into
account the origial source path makes it impossible to do out of tree
builds. To fix it, every relative include path was replaced with
$(top_srcdir) so it works independetly of build diretory location.
Change-Id: Ib19f5695958bceffc1eeba56b5a507ebc68eee47 Reported-by: Boszormenyi Zoltan <zboszor@pr.hu> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
