Fix unamalgamated target

mongoose.c

@@ -114,6 +114,7 @@ int mg_base64_decode(const char *src, int n, char *dst) {
 
 
 
+
 struct dns_data {
   struct dns_data *next;
   struct mg_connection *c;

src/dns.c

@@ -2,6 +2,7 @@
 #include "log.h"
 #include "str.h"
 #include "timer.h"
+#include "url.h"
 #include "util.h"
 
 struct dns_data {