diff --git a/include/mgba-util/common.h b/include/mgba-util/common.h
index 52a040198..746e57799 100644
--- a/include/mgba-util/common.h
+++ b/include/mgba-util/common.h
@@ -17,6 +17,9 @@
 CXX_GUARD_START
 
 #ifdef _WIN32
+#ifdef _CRT_NONSTDC_NO_WARNINGS
+#define _CRT_NONSTDC_NO_WARNINGS
+#endif
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
diff --git a/src/core/input.c b/src/core/input.c
index 1c06d48a9..3232d64d9 100644
--- a/src/core/input.c
+++ b/src/core/input.c
@@ -650,7 +650,7 @@ void mInputSetPreferredDevice(struct Configuration* config, const char* platform
 
 	char deviceId[KEY_NAME_MAX];
 	snprintf(deviceId, sizeof(deviceId), "device%i", playerId);
-	return ConfigurationSetValue(config, sectionName, deviceId, deviceName);
+	ConfigurationSetValue(config, sectionName, deviceId, deviceName);
 }
 
 const char* mInputGetCustomValue(const struct Configuration* config, const char* platformName, uint32_t type, const char* key, const char* profile) {
diff --git a/src/core/scripting.c b/src/core/scripting.c
index c87829f75..60e1671d0 100644
--- a/src/core/scripting.c
+++ b/src/core/scripting.c
@@ -1346,9 +1346,9 @@ static uint8_t _readLuminance(struct GBALuminanceSource* luminance) {
 }
 #endif
 
-#define CALLBACK(NAME) _mScriptCoreCallback ## NAME
+#define mCoreCallback(NAME) _mScriptCoreCallback ## NAME
 #define DEFINE_CALLBACK(NAME) \
-	void CALLBACK(NAME) (void* context) { \
+	void mCoreCallback(NAME) (void* context) { \
 		struct mScriptContext* scriptContext = context; \
 		if (!scriptContext) { \
 			return; \
@@ -1397,13 +1397,13 @@ void mScriptContextAttachCore(struct mScriptContext* context, struct mCore* core
 #endif
 
 	struct mCoreCallbacks callbacks = {
-		.videoFrameEnded = CALLBACK(frame),
-		.coreCrashed = CALLBACK(crashed),
-		.sleep = CALLBACK(sleep),
-		.shutdown = CALLBACK(stop),
-		.keysRead = CALLBACK(keysRead),
-		.savedataUpdated = CALLBACK(savedataUpdated),
-		.alarm = CALLBACK(alarm),
+		.videoFrameEnded = mCoreCallback(frame),
+		.coreCrashed = mCoreCallback(crashed),
+		.sleep = mCoreCallback(sleep),
+		.shutdown = mCoreCallback(stop),
+		.keysRead = mCoreCallback(keysRead),
+		.savedataUpdated = mCoreCallback(savedataUpdated),
+		.alarm = mCoreCallback(alarm),
 		.context = context
 	};
 	core->addCoreCallbacks(core, &callbacks);
diff --git a/src/core/test/scripting.c b/src/core/test/scripting.c
index 16692fc14..bea6242ec 100644
--- a/src/core/test/scripting.c
+++ b/src/core/test/scripting.c
@@ -58,6 +58,7 @@ static const uint8_t _fakeGBROM[0x4000] = {
 		assert_true(core->loadROM(core, VFileFromConstMemory(_fakeGBROM, sizeof(_fakeGBROM)))); \
 		break; \
 	case mPLATFORM_NONE: \
+		abort(); \
 		break; \
 	} \
 	mCoreInitConfig(core, NULL); \
@@ -345,6 +346,9 @@ void _setupBp(struct mCore* core) {
 		core->rawWrite8(core, 0xF2, 0, 0xFD); // jr $-3
 		break;
 #endif
+	case mPLATFORM_NONE:
+		abort();
+		break;
 	}
 }