A lot of tools need to be built before compilation proper can happen.

Makefile.inc1

@@ -515,12 +515,13 @@ _libroken4= kerberosIV/lib/libroken
 
 .if exists(${.CURDIR}/kerberos5) && exists(${.CURDIR}/crypto) && \
     !defined(NOCRYPT) && defined(MAKE_KERBEROS5)
-_libroken5= kerberos5/lib/libroken
+_libkrb5= kerberos5/lib/libroken kerberos5/lib/libasn1 kerberos5/lib/libhdb \
+	kerberos5/lib/libsl
 .endif
 
 build-tools:
 .for _tool in bin/sh ${_games} gnu/usr.bin/cc/cc_tools ${_fortran} \
-    ${_libroken4} ${_libroken5} lib/libncurses ${_share}
+    ${_libroken4} ${_libkrb5} lib/libncurses ${_share}
 	cd ${.CURDIR}/${_tool}; ${MAKE} build-tools
 .endfor