Upstream: ** build: More flexible library linking options for compression libraries, TPM, and liboqs support The configure options, --with-zstd, --with-brotli, --with-zlib, --with-tpm2, and --with-liboqs now take 4 states: yes/link/dlopen/no, to specify how the libraries are linked or loaded. I haven't figure out how to easily avoid ENABLE_DLOPEN from configure, but we don't have the other libraries so far, so it's simple anyway.