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diff --git a/meta-xilinx-core/classes/xilinx-microblaze.bbclass b/meta-xilinx-core/classes/xilinx-microblaze.bbclass
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+# Class to add a deprecated warning from various configuration files.
+
+# Immediately after the ConfigParsed event handler, warn the user of any
+# deprecated files the user has used.
+addhandler xilinx_microblaze_config_eventhandler
+xilinx_microblaze_config_eventhandler[eventmask] = "bb.event.ConfigParsed"
+python xilinx_microblaze_config_eventhandler () {
+ if d.getVar('DEFAULTTUNE').startswith('microblaze'):
+ if 'xilinx-microblaze' not in d.getVar('BBFILE_COLLECTIONS').split():
+ bb.fatal('You must include the meta-microblaze layer to build for this configuration.')
+}