How to Update Unicode Support ¶

Here are the steps for updating the Unicode support in CMUCL.

1. Update all the files in src/i18n
2. Modify src/tools/build-unidata.lisp and src/code/unidata.lisp to have the desired values for the Unicode major, minor, and update versions.
3. Follow the instructions at the top of src/tools/build-unidata.lisp:
   1. Compile and load src/tools/build-unidata.lisp
   2. Run (build-unidata). Specify the directory (to src/i18n/ if necessary.
   3. Run (write-unidata <path>) to write out the new unidata.bin file to <path>.
   4. Copy the new unidata.bin file to src/i18n/unidata.bin.
4. Rebuild cmucl
5. Using the new version of cmucl
   1. Run the tests
      1. Load src/i18n/tests/norm-test.lisp and run (run-normalization-tests)
      2. Load src/i18n/tests/word-break-test.lisp and run (run-word-break-test)
   2. There should be no failures in the tests. If there are, fix up errors and start again.

This should give a new version of cmucl with support for the new version of Unicode.