* lib/hashcode-string1.h: New file. * lib/hashcode-string1.c: New file, based on lib/hash.c. * modules/hashcode-string1: New file. * lib/hash.h: Include hashcode-string1.h. (hash_string): Remove declaration. * lib/hash.c (hash_string): Remove function. * modules/hash (Depends-on): Add hashcode-string1. * lib/exclude.c: Include hashcode-string1.h. * modules/exclude (Depends-on): Add hashcode-string1.