+) Change all functions with names starting with des_ to be starting
with DES_ instead. Add wrappers that are compatible with libdes,
- but are named _old_des_*. Finally, add macros that map the des_*
- symbols to the corresponding _old_des_*.
+ but are named _ossl_old_des_*. Finally, add macros that map the
+ des_* symbols to the corresponding _ossl_old_des_*.
All this is done because there are increasing clashes with libdes
and other DES libraries that are currently used by other projects.