Eleven generations of punktfunk_connect_ex* each added a field by minting a
new exported symbol plus a 20-something-parameter forwarding shim (ex11 over
ex10: two fields). punktfunk_connect_opts takes every option in ONE
size-prefixed PunktfunkConnectOpts — PunktfunkConfig's struct_size guard,
with the growth direction added: an older, shorter caller gets its tail
defaulted to unspecified/auto instead of misread. Layout is locked
padding-free on both pointer widths (96/68 B) by const asserts AND by the C
harness compiling the same sizes, so an appended field can never land in
bytes an older sizeof already covered. Every ex keeps its symbol and
behaviour; the chain is closed in the embedding guide (whose ladder table
had stalled at ex7 — the maintenance tax on display).
Also: the cargo-test C harness now actually links on an Apple Silicon dev
box (-L/opt/homebrew/lib was missing) and always builds the staticlib WITH
quic — a featureless .a left by an earlier plain build was silently reused.
enricobuehler
9c164aa614