So as of GCC 9.2, std::random_device on Windows is RtlGenRandom()

....which is precisely the thing i patch out in libsodium to use CryptoAPI
documented interfaces instead (which fall through to RtlGenRandom() on
such devices _anyway_)
we can just use libsodium directly, i happened to patch it out in libstdc++
as a side effect (since my local toolchain can target any version of windows)

llarp/router/rc_lookup_handler.cpp

@@ -276,7 +276,7 @@ namespace llarp
 
       if(lookupRouters.size() > LookupPerTick)
       {
-        static std::mt19937_64 rng{std::random_device{}()};
+        static std::mt19937_64 rng{llarp::randint()};
         std::shuffle(lookupRouters.begin(), lookupRouters.end(), rng);
         lookupRouters.resize(LookupPerTick);
       }

llarp/util/endian.hpp

@@ -10,6 +10,7 @@
 #include <sys/endian.h>
 #elif defined(__sun)
 #include <sys/byteorder.h>
+#include <endian.h>
 #define htobe16(x) htons(x)
 #define htole16(x) (x)
 #define be16toh(x) ntohs(x)