[Bug: 21.5-b27] font-lock-fontify-* / infinite loop

[Stephen J. Turnbull]

Dr. Volker Zell writes:

 > I see also a mixture of german/english in the menubar with 21.5, even so
 > I haven't set any of the above environment variables.

Presumably CYGWIN does that for you, since your Windows environment is
set to German.

 > How can I switch to a pure english menubar.

AFAICT this is all X11 magic in app-defaults, so you need to set the
appropriate environment variable.  LC_ALL=C or LC_ALL=en_US.UTF-8
should do.  It may be possible to use site-start.el to get the expr
`(setenv "LC_ALL" "C")' or similar executed before X goes groveling
through the menubar resources, but I'm not sure about that.

For a permanent effect, deleting the mule-packages/locale package is
the only thing I can suggest.