diff --git a/configure.ac b/configure.ac
index 9d6d1825de..b0ba087e1f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1612,6 +1612,7 @@ AM_CONDITIONAL(USE_CELT, false)
 AM_CONDITIONAL(USE_COG, false)
 AM_CONDITIONAL(USE_CURL, false)
 AM_CONDITIONAL(USE_DC1394, false)
+AM_CONDITIONAL(USE_DECKLINK, false)
 AM_CONDITIONAL(USE_DIRECTFB, false)
 AM_CONDITIONAL(USE_DIRAC, false)
 AM_CONDITIONAL(USE_DTS, false)
@@ -1629,6 +1630,7 @@ AM_CONDITIONAL(USE_TIGER, false)
 AM_CONDITIONAL(USE_LADSPA, false)
 AM_CONDITIONAL(USE_LV2, false)
 AM_CONDITIONAL(USE_LIBMMS, false)
+AM_CONDITIONAL(USE_LINSYS, false)
 AM_CONDITIONAL(USE_MODPLUG, false)
 AM_CONDITIONAL(USE_MIMIC, false)
 AM_CONDITIONAL(USE_MPEG2ENC, false)