* seastar 70aecca...ac02df7 (5):
> Merge "Prefix preprocessor definitions" from Jesse
> cmake: Do not enable warnings transitively
> posix: prevent unused variable warning
> build: Adjust DPDK options to fix compilation
> io_scheduler: adjust property names
DEBUG, DEFAULT_ALLOCATOR, and HAVE_LZ4_COMPRESS_DEFAULT macro
references prefixed with SEASTAR_. Some may need to become
Scylla macros.
They are no longer used, and cannot be efficiently implemenented
for large bitsets using a summary vector approach without slowing
down the find_*_set() variants, which are used.
Also remove find_previous_set() for the same reason.
