Then, build under fs/unicode/ with REGENERATE_UTF8DATA=1:
make REGENERATE_UTF8DATA=1 fs/unicode/
After sanity checking the newly generated utf8data.c file (the
version generated from the 12.1.0 UCD should be 4,109 lines long, and
have a total size of 324k) and/or comparing it with the older version
of utf8data.c_shipped, rename it to utf8data.c_shipped.
If you are a kernel developer updating to a newer version of the
Unicode Character Database, please update this README.utf8data file
with the version of the UCD that was used, the md5sum and sha1sums of
the *.txt files, before checking in the new versions of the utf8data.c
and README.utf8data files.
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