Index: channels/Makefile
===================================================================
--- channels/Makefile	(revision 7380)
+++ channels/Makefile	(working copy)
@@ -91,10 +91,12 @@ ifneq ($(wildcard $(CROSS_COMPILE_TARGET
   CHANNEL_LIBS+=chan_alsa.so
 endif
 
+ifndef WITHOUT_PRI
 ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/lib/libpri.so.1)$(wildcard $(CROSS_COMPILE_TARGET)/usr/local/lib/libpri.so.1),)
   CFLAGS+=-DZAPATA_PRI
   ZAPPRI=-lpri
 endif
+endif # WITHOUT_PRI
 
 ifneq ($(wildcard $(CROSS_COMPILE_TARGET)/usr/lib/libmfcr2.so.1)$(wildcard $(CROSS_COMPILE_TARGET)/usr/local/lib/libmfcr2.so.1),)
   CFLAGS+=-DZAPATA_R2