Log Message:
smake: Update to 1.3nb5

Switch to latest distfile.

Changelog
=========

Release 2019-07-22:
- RULES/*: Changes CURDIR into CURWDIR as GNU make uses CURDIR and we
           added compatibility support to SunPro Make and smake.

- RULES: Added configuration symlinks for FreeBSD on PowerPC

- smake: The -C option now gives GNU make compatibility.
         - Multiple -C options are now supported
         - A new variable CURDIR has been implemented
         The old implementation from May 2009 did not yet support that.

Release 2019-08-13:
- smake: Added some code to trick out GCC that warns on a so called bit
         loss while enlarging the fastalloc() size parameter for alignment
         purposes.