diff --git a/src/Platform.c b/src/Platform.c
index d34171e..458fd98 100644
--- a/src/Platform.c
+++ b/src/Platform.c
@@ -73,6 +73,9 @@ DWORD WINAPI ThreadProc(LPVOID lpParameter) {
 #elif defined(__WIIU__)
 int ThreadProc(int argc, const char** argv) {
     struct thread_context* ctx = (struct thread_context*)argv;
+#elif defined (__3DS__)
+void ThreadProc(void* context) {
+    struct thread_context* ctx = (struct thread_context*)context;
 #else
 void* ThreadProc(void* context) {
     struct thread_context* ctx = (struct thread_context*)context;
@@ -90,8 +93,10 @@ void* ThreadProc(void* context) {
 
     free(ctx);
 
-#if defined(LC_WINDOWS) || defined(__vita__) || defined(__WIIU__) || defined(__3DS__)
+#if defined(LC_WINDOWS) || defined(__vita__) || defined(__WIIU__)
     return 0;
+#elif defined(__3DS__)
+    return;
 #else
     return NULL;
 #endif
diff --git a/src/PlatformSockets.c b/src/PlatformSockets.c
index bd4789c..cec96f3 100644
--- a/src/PlatformSockets.c
+++ b/src/PlatformSockets.c
@@ -151,7 +151,8 @@ int pollSockets(struct pollfd* pollFds, int pollFdsCount, int timeoutMs) {
 #elif defined(__3DS__)
     int err;
     u64 poll_start = osGetTime();
-    for (u64 i = poll_start; (i - poll_start) < timeoutMs; i = osGetTime()) {
+    // seems like timeoutMs is never negative
+    for (u64 i = poll_start; (i - poll_start) < (u64)timeoutMs; i = osGetTime()) {
         err = poll(pollFds, pollFdsCount, 0); // This is running for 14ms
         if (err) {
             break;
@@ -471,18 +472,17 @@ SOCKET connectTcpSocket(struct sockaddr_storage* dstaddr, SOCKADDR_LEN addrlen,
     // We still must split our own sends into smaller chunks with TCP_NODELAY enabled to
     // avoid MTU issues on the way out to to the target.
 #if defined(LC_WINDOWS) && !defined(NXDK)
-    int val;
 
     // Windows doesn't support setting TCP_MAXSEG but IP_PMTUDISC_DONT forces the MSS to the protocol
     // minimum which is what we want here. Linux doesn't do this (disabling PMTUD just avoids setting DF).
     if (dstaddr->ss_family == AF_INET) {
-        val = IP_PMTUDISC_DONT;
+        int val = IP_PMTUDISC_DONT;
         if (setsockopt(s, IPPROTO_IP, IP_MTU_DISCOVER, (char*)&val, sizeof(val)) < 0) {
             Limelog("setsockopt(IP_MTU_DISCOVER, IP_PMTUDISC_DONT) failed: %d\n", val, (int)LastSocketError());
         }
     }
     else {
-        val = IP_PMTUDISC_DONT;
+        int val = IP_PMTUDISC_DONT;
         if (setsockopt(s, IPPROTO_IPV6, IPV6_MTU_DISCOVER, (char*)&val, sizeof(val)) < 0) {
             Limelog("setsockopt(IPV6_MTU_DISCOVER, IP_PMTUDISC_DONT) failed: %d\n", val, (int)LastSocketError());
         }
diff --git a/src/RtspConnection.c b/src/RtspConnection.c
index 3669bdc..e958101 100644
--- a/src/RtspConnection.c
+++ b/src/RtspConnection.c
@@ -902,7 +902,7 @@ static bool parseUrlAddrFromRtspUrlString(const char* rtspUrlString, char* desti
 
 // SDP attributes are in the form:
 // a=x-nv-bwe.bwuSafeZoneLowLimit:70\r\n
-bool parseSdpAttributeToUInt(const char* payload, const char* name, unsigned int* val) {
+bool parseSdpAttributeToUInt(const char* payload, const char* name, uint32_t* val) {
     // Find the entry for the specified attribute name
     char* attribute = strstr(payload, name);
     if (!attribute) {
diff --git a/src/SdpGenerator.c b/src/SdpGenerator.c
index a2f9789..22467c0 100644
--- a/src/SdpGenerator.c
+++ b/src/SdpGenerator.c
@@ -1,4 +1,5 @@
 #include "Limelight-internal.h"
+#include <inttypes.h>
 
 #define MAX_OPTION_NAME_LEN 128
 
@@ -269,7 +270,7 @@ static PSDP_OPTION getAttributesList(char*urlSafeAddr) {
     if (IS_SUNSHINE()) {
         // Send client feature flags to Sunshine hosts
         uint32_t moonlightFeatureFlags = ML_FF_FEC_STATUS | ML_FF_SESSION_ID_V1;
-        snprintf(payloadStr, sizeof(payloadStr), "%u", moonlightFeatureFlags);
+        snprintf(payloadStr, sizeof(payloadStr), "%" PRIu32, moonlightFeatureFlags);
         err |= addAttributeString(&optionHead, "x-ml-general.featureFlags", payloadStr);
 
         // New-style control stream encryption is low overhead, so we enable it any time it is supported
@@ -299,7 +300,7 @@ static PSDP_OPTION getAttributesList(char*urlSafeAddr) {
             EncryptionFeaturesEnabled |= SS_ENC_AUDIO;
         }
 
-        snprintf(payloadStr, sizeof(payloadStr), "%u", EncryptionFeaturesEnabled);
+        snprintf(payloadStr, sizeof(payloadStr), "%" PRIu32, EncryptionFeaturesEnabled);
         err |= addAttributeString(&optionHead, "x-ss-general.encryptionEnabled", payloadStr);
 
         // Enable YUV444 if requested