The Python build.py file takes care of copying some CLDR test data directories to both the ICU4C and ICU4J source trees. To add more directories to the list, modify the cldr_test_data fileset.
ANT-TO-REMOVE-START
WARNING: Ant support WILL BE REMOVED. Only use this (and report) if the step above fails.
The ant build.xml file takes care of copying some CLDR test data directories to both the ICU4C and ICU4J source trees. To add more directories to the list, modify the cldrTestData fileset.
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The cldr-to-icu directory contains tools to convert from CLDR's XML data to ICU resource files.
See the cldr-to-icu README and cldr-icu-readme.txt for more information.