libdnstap: don't export internal symbols + refactoring

src/contrib/Makefile.inc

@@ -128,8 +128,9 @@ endif EMBEDDED_LIBBPF
 if HAVE_LIBDNSTAP
 noinst_LTLIBRARIES += libdnstap.la
 
-libdnstap_la_CPPFLAGS = $(AM_CPPFLAGS) $(DNSTAP_CFLAGS)
-libdnstap_la_LIBADD   = $(DNSTAP_LIBS)
+libdnstap_la_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAG_VISIBILITY) $(DNSTAP_CFLAGS)
+libdnstap_la_LDFLAGS  = $(AM_LDFLAGS) $(LDFLAG_EXCLUDE_LIBS)
+libdnstap_LIBS        = libdnstap.la $(DNSTAP_LIBS)
 
 SUFFIXES = .proto .pb-c.c .pb-c.h
 

src/knot/modules/dnstap/Makefile.inc

@@ -4,12 +4,12 @@ EXTRA_DIST +=                    knot/modules/dnstap/dnstap.rst
 if STATIC_MODULE_dnstap
 libknotd_la_SOURCES += $(knot_modules_dnstap_la_SOURCES)
 libknotd_la_CPPFLAGS += $(DNSTAP_CFLAGS)
-libknotd_la_LIBADD += $(DNSTAP_LIBS) libdnstap.la
+libknotd_la_LIBADD += $(libdnstap_LIBS)
 endif
 
 if SHARED_MODULE_dnstap
 knot_modules_dnstap_la_LDFLAGS = $(KNOTD_MOD_LDFLAGS)
 knot_modules_dnstap_la_CPPFLAGS = $(KNOTD_MOD_CPPFLAGS) $(DNSTAP_CFLAGS)
-knot_modules_dnstap_la_LIBADD = $(DNSTAP_LIBS) libdnstap.la
+knot_modules_dnstap_la_LIBADD = $(libdnstap_LIBS)
 pkglib_LTLIBRARIES += knot/modules/dnstap.la
 endif

src/utils/Makefile.inc

@@ -79,9 +79,9 @@ knsupdate_LDADD        = $(libknotus_LIBS) libzscanner.la
 
 if HAVE_DNSTAP
 kdig_CPPFLAGS          += $(DNSTAP_CFLAGS)
-kdig_LDADD             += $(DNSTAP_LIBS) libdnstap.la
+kdig_LDADD             += $(libdnstap_LIBS)
 khost_CPPFLAGS         += $(DNSTAP_CFLAGS)
-khost_LDADD            += $(DNSTAP_LIBS) libdnstap.la
+khost_LDADD            += $(libdnstap_LIBS)
 endif HAVE_DNSTAP
 
 if ENABLE_XDP