Sendto pktinfo #888

Job	Run time
Linux CentOS 7	4m 50s
Linux fedora latest	5m 23s
Native Linux (WError)	6m 46s
Native Linux (libc++ debug)	7m 56s
Native Linux (c++17)	6m 24s
Cross mingw64 DLL	12m 40s
Cross mingw64 static	12m 14s
RTEMS5	18m 15s
Native Linux with clang	6m 54s
Native Linux with clang ubsan	6m 12s
Native Linux with libevent stable	6m 6s
Native Linux with 7.0.2	6m 12s
Native Linux with 3.15	5m 46s
Native Linux with 3.14	7m 51s
OSX	4m 45s
vs2019 DLL	9m 30s
vs2019 static	10m 49s
	2h 18m 33s

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