diff --git a/board-js2x/config b/board-js2x/config
index 3f6a6c8..d6891e1 100644
--- a/board-js2x/config
+++ b/board-js2x/config
@@ -3,5 +3,11 @@ TARG=ppc64
 export FLAG="-DBIOSEMU"
 export CPUARCH=ppc970
 export CPUARCHDEF=-DCPU_PPC970
+
+ifneq ($(wildcard ../other-licence/x86emu/*.c),)
 export SNK_BIOSEMU_APPS=1
+else
+export SNK_BIOSEMU_APPS=0
+endif
+
 FLASH_SIZE=8388608