Linux

Merge r1877439, r1877441, r1877443 from trunk: #566

Job	Run time
Default	3m 25s
Static	3m 24s
Maintainer-mode	3m 30s
Named SHM - SysV, Maintainer-mode	3m 26s
Named SHM - Classic mmap, Maintainer-mode	3m 24s
Pool-debug	3m 27s
Pool-debug, maintainer-mode	3m 27s
Maintainer-mode, no IPv6	3m 27s
Maintainer-mode, -Werror	3m 27s
ASan	3m 34s
ASan, pool-debug	3m 34s
UBsan	3m 29s
	41m 34s

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