orc: add host support

Some packages use orc to generate C code at build time using orcc, so we
need to build orc for the host as well.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/orc/orc.mk

@@ -6,6 +6,7 @@
 ORC_VERSION = 0.4.14
 ORC_SITE = http://code.entropywave.com/download/orc/
 ORC_INSTALL_STAGING = YES
+ORC_DEPENDENCIES = host-orc
 
 define ORC_REMOVE_BUGREPORT
 	rm -f $(TARGET_DIR)/usr/bin/orc-bugreport
@@ -22,3 +23,4 @@ ORC_POST_INSTALL_TARGET_HOOKS += ORC_REMOVE_DEVFILES
 endif
 
 $(eval $(call AUTOTARGETS))
+$(eval $(call AUTOTARGETS,host))