APUE3.E (based on Maxos 10.9)

After Google found your problem, I also encountered the same problem (5 minutes ago), and then through the other search results to find the answer, I do not know if you are like me, the following error occurred:

...
Clang:error:unknown argument: '-r. ' [-wunused-command-line-argument-hard-error-in-future]
Clang:note:this'll be a hard error (cannot is downgraded to a warning) in the future
MAKE[1]: * * * [T4] Error 1
Make: * * * [ALL] Error 1

If so, the solution is:
Edit the Apue.3e/db/makefile and put

Ifeq "$ (PLATFORM)" "MacOS"

Extrald=-r.

Change to:

Ifeq "$ (PLATFORM)" "MacOS"

Extrald=-r

That is to say, "-R." Change to "-R", remove the last ".", then go back to the apue.3e directory, execute make all again, finish, wish success!

APUE3.E (based on Maxos 10.9)