In case it helps someone else, I had encountered the symptoms cited in UPDATING entry 20170411, but the UPDATING entry didn't exist at the time.
So I poked around, and discovered that -- in my case -- the thing that was apparently causing the problem was that lang/python27 had been built with "SEM=off". So I re-built lang/python27 after enabling its SEM option; that done, www/firefox built without further incident. (Checking the svn log for lang/python27/Makefile, it seems that SEM had been changed to "default on" in r361735, 2014-07-14 00:20:40 -0700. I had no known reason to change the setting at that time....) Peace, david -- David H. Wolfskill da...@catwhisker.org Who would have thought that a "hotelier" would be so ... unwelcoming? Sad. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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