On Fri, 21 Feb 2020 09:40:01 +0100 "Rafael J. Wysocki" <rafael@xxxxxxxxxx> wrote: > 1.6.5 (I realize that it is older than recommended, but it had been > working fine before 5.5-rc1 :-)). We still intend to support back to 1.4; this version should work. > I've tried that too, but most often I do something like "make > O=../build/somewhere/ htmldocs". > > But I can do "make O=../build/somewhere/ -j 2 htmldocs" too just fine. :-) I suspect that the O= plays into this somehow; that's not something I do in my own testing. I'll try to take a look at this, but I'm on the road and somewhat distracted at the moment... Thanks, jon