I renamed the build folder, and it was recreated with the new make. But with same error messages.
I've also struggled with the recent build issue, which is obviously related to zlib/gzip. This commit seems to be to blame:
https://github.com/cryptozoidberg/boolberry/commit/d1be390e63147631fa2ca16a48f74b8333c86bfbas it builds fine when checking out the preceding version. This one looks like it bundles a copy of zlib instead of using external libraries -- I wonder why?