DTRACE is not enabled by default. Enabling it breaks the build with the following error:
/bin/sh ../../libtool --mode=execute dtrace -o afp_dtrace.h -h -s ../../include/atalk/afp_dtrace.d
dtrace: failed to compile script ../../include/atalk/afp_dtrace.d: "/usr/lib/dtrace/io.d", line 7: type redeclared: struct pktinfo
gmake: *** [afp_dtrace.h] Error 1
over to maintainer
I have disabled the DTRACE option since I don't have enough insight to why it is broken. Patches welcome, though.