Build fixes. (#4602) #1844

Job	Run time
Linux [UBSAN] [lmdb \| clang]	38m 17s
macOS [UBSAN] [lmdb \| clang]	31m 59s
Linux [ASAN] [lmdb \| clang]	38m 44s
macOS [ASAN] [lmdb \| clang]	27m 49s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	39m 46s
macOS [TSAN] [lmdb \| clang]	28m 30s
Linux [TSAN] [lmdb \| clang]	38m 4s
macOS [UBSAN] [rocksdb \| clang]	1h 6m 24s
macOS [ASAN] [rocksdb \| clang]	1h 8m 31s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	39m 40s
macOS [TSAN] [rocksdb \| clang]	1h 11m 1s
Linux [UBSAN] [rocksdb \| clang]	1h 17m 52s
Linux [ASAN] [rocksdb \| clang]	1h 18m 44s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	1h 18m 32s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	1h 18m 25s
	13h 22m 18s

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