pkg.m4: new
configure.ac: use pkg.m4
configure.ac: add --enable-dnstap argument
configure.ac: add --with-dnstap-socket-path argument
configure.ac: export libdnstap_CFLAGS and libdnstap_LIBS variables
Makefile.in: use libdnstap_CFLAGS and libdnstap_LIBS variables
util/dt_config.h.in: new
configure.ac: add ENABLE_DNSTAP substitution variable and generate util/dt_config.h
util/dt.c, util/dt.h: new
Makefile.in: add util/dt.c to DAEMON_SRC, dt.lo to DAEMON_OBJ
util/config*: add dnstap config variables
dt: dt_init()
struct daemon: add dnstap I/O socket
daemon_create_workers(): create dnstap I/O socket
daemon_cleanup(): close dnstap I/O socket
struct worker: add dnstap I/O queue
worker_create(): get per-thread dnstap I/O queue
dt: move util/log.h include to .c file
dt: pass the full struct config_file to dt_init()
struct config_file: add len_dnstap_identity, len_dnstap_version