Issues to be addressed for src/lib/crypto/des: -*- text -*- "const" could be used in more places Array types are used in calling interfaces. Under ANSI C, a value of type "arraytype *" cannot be assigned to a variable of type "const arraytype *", so we get compilation warnings. Possible fix: Rewrite internal interfaces to not use arrays this way. Provide external routines compatible with old API, but not using const?