The qtbase recipe's strtold_cpp_compat.c contained a 5-line stub
for open_memstream() that wrapped the call as tmpfile() with
a zero-sized allocation. This was a workaround for relibc not
implementing open_memstream.
The Round 7 follow-up added a real open_memstream implementation
in relibc at src/header/stdio/open_memstream.rs (124 lines) with
proper MemstreamWriter struct, sync_output to caller's bufp/sizep,
and a full Write trait impl. Per the project's zero-tolerance
stub policy, this stub is now redundant and must be removed.
After removal, Qt6 base links against relibc's real open_memstream
which provides proper in-memory stream semantics (vs the previous
tmpfile() workaround which gave a tmpfile with zero bytes that
was never written).
vasilito
1d930cd425