boost-1.67.0 vs NetBSD: locale

[Thomas Klausner <tk%giga.or.at@localhost>]

Hi!

I had this problem before, but at some point it disappeared, but now
it's back with boost-1.67: Starting (some) boost applications (my
particular example is gnucash) with LC_CTYPE set causes them to dump
core like this:

terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid

# env | grep LC
LC_CTYPE=de_AT.UTF-8
LC_TIME=de_AT.UTF-8

Any ideas?
 Thomas