[Devel] problem in unix-def.mk for Macintosh OSX

[Walter]

I apologize in advance if this is not the correct place for reporting 
this type of issue.

I'm attempting to build freetype-2.1.8 for unix:

On the Macintosh running OSX 10.2 (BSD Unix), the shell script pwd.sh 
does not exist and everything tries to build from the root directory.  
I needed to remove the ".sh" when setting TOP_DIR & OBJ_DIR in 
unix-def.mk

Walter