Merge !235: dnstap.mk: fix race around dnstap.pb-c.h

modules/dnstap/dnstap.mk

 dnstap_CFLAGS := -fvisibility=hidden -fPIC
 dnstap_SOURCES := modules/dnstap/dnstap.pb-c.c modules/dnstap/dnstap.c
-dnstap_DEPEND := $(libkres)
+dnstap_DEPEND := $(libkres) modules/dnstap/dnstap.pb-c.c # because of generated *.h
 dnstap_LIBS := $(contrib_TARGET) $(libkres_TARGET) $(libkres_LIBS) $(libprotobuf-c_LIBS) $(libfstrm_LIBS)
 $(call make_c_module,dnstap)