I was also writing something before you published those scripts. My method reads the original enum by tagging like the `ATTR` macros. There's a couple sed scripts, an awk script, and a shell script to tie it together.
`pp.sed` - removes preprocessor directives and `#if 0` blocks.
[source,sed]
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/^\[\[:blank:]]\*#if 0/,/^[[:blank:]]*#endif/
/^\[\[:blank:]]\*#/d
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* `enum.sed` - grabs enum definitions and permits the opening brace to be on either the same line or the next.