>>> rocksdb 6.6.4 Extracting
gzip -d -c /home/giuliobenetti/autobuild/run/instance-2/dl/rocksdb/rocksdb-6.6.4.tar.gz | tar --strip-components=1 -C /home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4   -xf -
>>> rocksdb 6.6.4 Patching

Applying 0001-Check-for-sys-auxv.h.patch using patch: 
patching file CMakeLists.txt
Hunk #1 succeeded at 467 (offset -14 lines).
patching file build_tools/build_detect_platform
Hunk #1 succeeded at 493 (offset -13 lines).
patching file util/crc32c.cc
patching file util/crc32c_arm64.cc
>>> rocksdb 6.6.4 Configuring
>>> rocksdb 6.6.4 Building
PATH="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin:/home/giuliobenetti/autobuild/run/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" AR="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-ar" AS="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-as" LD="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-ld" NM="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-nm" CC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-gcc" GCC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-gcc" CPP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-cpp" CXX="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-g++" FC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-gfortran" F77="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-gfortran" RANLIB="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-ranlib" READELF="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-readelf" STRIP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-strip" OBJCOPY="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-objcopy" OBJDUMP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/giuliobenetti/autobuild/run/instance-2/output-1/host/lib -Wl,-rpath,/home/giuliobenetti/autobuild/run/instance-2/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-as" DEFAULT_LINKER="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/xtensa-buildroot-linux-uclibc-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -mlongcalls -mauto-litpools -O2  " CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -mlongcalls -mauto-litpools -O2  " LDFLAGS="" FCFLAGS="-mlongcalls -mauto-litpools -O2 " FFLAGS="-mlongcalls -mauto-litpools -O2 " PKG_CONFIG="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/pkg-config" STAGING_DIR="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/xtensa-buildroot-linux-uclibc/sysroot" INTLTOOL_PERL=/usr/bin/perl /usr/bin/make -j4 PORTABLE=1 ROCKSDB_DISABLE_GFLAGS=0 ROCKSDB_DISABLE_JEMALLOC=1 ROCKSDB_DISABLE_LZ4=1 ROCKSDB_DISABLE_SNAPPY=0 ROCKSDB_DISABLE_ZLIB=0 ROCKSDB_DISABLE_ZSTD=1 -C /home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4 shared_lib
make[1]: Entering directory '/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4'
$DEBUG_LEVEL is 0
  GEN      util/build_version.cc
$DEBUG_LEVEL is 0
  GEN      util/build_version.cc
  CC       shared-objects/cache/clock_cache.o
  CC       shared-objects/cache/lru_cache.o
  CC       shared-objects/cache/sharded_cache.o
  CC       shared-objects/db/arena_wrapped_db_iter.o
  CC       shared-objects/db/builder.o
  CC       shared-objects/db/c.o
  CC       shared-objects/db/column_family.o
  CC       shared-objects/db/compacted_db_impl.o
db/compacted_db_impl.cc: In static member function 'static rocksdb::Status rocksdb::CompactedDBImpl::Open(const rocksdb::Options&, const string&, rocksdb::DB**)':
db/compacted_db_impl.cc:147:77: error: 'new' of type 'rocksdb::CompactedDBImpl' with extended alignment 16 [-Werror=aligned-new=]
   std::unique_ptr<CompactedDBImpl> db(new CompactedDBImpl(db_options, dbname));
                                                                             ^
db/compacted_db_impl.cc:147:77: note: uses 'void* operator new(std::size_t)', which does not have an alignment parameter
db/compacted_db_impl.cc:147:77: note: use '-faligned-new' to enable C++17 over-aligned new support
  CC       shared-objects/db/compaction/compaction.o
  CC       shared-objects/db/compaction/compaction_iterator.o
cc1plus: all warnings being treated as errors
Makefile:732: recipe for target 'shared-objects/db/compacted_db_impl.o' failed
make[1]: *** [shared-objects/db/compacted_db_impl.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4'
package/pkg-generic.mk:271: recipe for target '/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4/.stamp_built' failed
make: *** [/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.6.4/.stamp_built] Error 2
make: Leaving directory '/home/giuliobenetti/autobuild/run/instance-2/buildroot'