build: use hexdump instead of xxd, optional libdl

config.mk

@@ -16,6 +16,6 @@ CFLAGS	+= -std=c99 -D_GNU_SOURCE -Wall -fPIC -I$(abspath .) -I$(abspath lib/gene
 CFLAGS  += -DPACKAGE_VERSION="\"$(MAJOR).$(MINOR)\"" -DPREFIX="\"$(PREFIX)\"" -DMODULEDIR="\"$(MODULEDIR)\""
 RM	:= rm -f
 LN      := ln -s
-XXD     ?= xxd
+XXD     ?= hexdump -v -e '/1 "0x%02X, " " "'
 INSTALL := install
 PYTHON  := python

daemon/daemon.mk

@@ -10,7 +10,7 @@ kresolved_SOURCES := \
 # Embed resources
 daemon/engine.o: daemon/lua/sandbox.inc daemon/lua/config.inc
 %.inc: %.lua
-	@$(call quiet,XXD,$<) -i - < $< > $@
+	@$(call quiet,XXD,$<) $< > $@
 
 # Dependencies
 kresolved_DEPEND := $(libkresolve)

lib/nsrep.c

@@ -15,6 +15,9 @@
  */
 
 #include <assert.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
 
 #include "lib/nsrep.h"
 #include "lib/defines.h"

platform.mk

@@ -22,7 +22,10 @@ else
         MODTYPE := dynamiclib
     else
         PLATFORM := POSIX
-        LDFLAGS += -pthread -ldl
+        LDFLAGS += -pthread
+        ifeq (,$(findstring BSD,$(UNAME)))
+            LDFLAGS += -ldl
+        endif
     endif
 endif