Specify coding-system-for-write, add a coding cookie in #'write-abbrev-file. 2007-12-09 Aidan Kehoe <kehoea@parhasard.net> * abbrev.el (write-abbrev-file): Write FILE using escape-quoted, as a coding system. Add a coding cookie to specify exactly what coding system was used (escape-quoted is aliased to binary on non-Mule). Thank you for the bug report, Uwe Brauer. This bug would have been resolved ages ago if we had merged Dave Love's 2002 changes from GNU. Nope, I didn't merge the whole file when doing this.