ref: 7563189691c3c02ce0cc1e593bb011d4638fe96e dir: /plugins/Makefile.am/
if HAVE_MPEG4IP if HAVE_XMMS SUBDIRS = mpeg4ip xmms xmmsmp4 else SUBDIRS = mpeg4ip endif else if HAVE_XMMS SUBDIRS = xmms xmmsmp4 else SUBDIRS = endif endif