WIP: junk #260

Job	Run time
Linux centos 7	5m 16s
Linux fedora latest	5m 40s
Native Linux (WError)	6m 10s
Native Linux (libc++ debug)	9m 37s
Native Linux (c++17)	6m 15s
Cross mingw64 DLL	12m 50s
Cross mingw64 static	31m 41s
RTEMS5	31m 0s
Native Linux with clang	5m 31s
Native Linux with libevent stable	6m 21s
Native Linux with 7.0.2	6m 9s
Native Linux with 3.15	4m 57s
Native Linux with 3.14	8m 20s
OSX	7m 48s
vs2019 DLL	10m 12s
vs2019 static	10m 52s
	2h 48m 39s

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