The emacs spell-checker is set to British but I want to use a different language. How?
The normal way of getting emacs to use a different language doesn’t work any more, because the spelling checker it uses, ispell, nowadays just calls a different program called aspell, which seems to ignore some of the ispell settings. To get emacs to use a different language’s dictionary, for example American English, type this command in a shell window: export ASPELL_CONF=’master american’ … then start emacs& from that shell.