diff --git a/CMakeLists.txt b/CMakeLists.txt
index 611e936..a8ac9c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,6 +73,13 @@ if(EXISTS "${GAMESWF_ROOT}/base/utility.h")
             UTILITY_H_CONTENT "${UTILITY_H_CONTENT}")
         file(WRITE "${GAMESWF_ROOT}/base/utility.h" "${UTILITY_H_CONTENT}")
     endif()
+    if(UTILITY_H_CONTENT MATCHES "switch\\(0\\)\\{case 0: case x:;\\}")
+        string(REPLACE
+            "#define compiler_assert(x)\tswitch(0){case 0: case x:;}"
+            "#define compiler_assert(x)\tstatic_assert((x), \"compiler_assert failed\")"
+            UTILITY_H_CONTENT "${UTILITY_H_CONTENT}")
+        file(WRITE "${GAMESWF_ROOT}/base/utility.h" "${UTILITY_H_CONTENT}")
+    endif()
 endif()
 
 if(EXISTS "${GAMESWF_ROOT}/gameswf/gameswf_environment.h")
@@ -214,6 +221,11 @@ target_compile_definitions(gameswf_core PUBLIC
 
 if(MSVC)
     target_compile_options(gameswf_core PRIVATE /W3 /O2 /GR-)
+    target_compile_definitions(gameswf_core PRIVATE
+        _CRT_SECURE_NO_WARNINGS
+        _CRT_NONSTDC_NO_WARNINGS
+        _TIME_T
+    )
 else()
     target_compile_options(gameswf_core PRIVATE -fPIC -w -O3 -fno-rtti)
 endif()
@@ -286,6 +298,10 @@ else()
     target_compile_options(libretro_flash PRIVATE -fPIC -Wall -Wextra -O3 -fno-exceptions -fno-rtti)
 endif()
 
+if(APPLE)
+    target_link_options(libretro_flash PRIVATE "-Wl,-undefined,dynamic_lookup")
+endif()
+
 # Unit Test Executable - Input Subsystem
 add_executable(test_input tests/test_input.cpp src/input_manager.cpp)
 target_include_directories(test_input PRIVATE include)
diff --git a/third_party/gameswf/base/tu_types.h b/third_party/gameswf/base/tu_types.h
index 8be3c5c..47b6860 100644
--- a/third_party/gameswf/base/tu_types.h
+++ b/third_party/gameswf/base/tu_types.h
@@ -1,102 +1,109 @@
-// tu_types.h	-- Ignacio CastaÒo, Thatcher Ulrich 2003
-
-// This source code has been donated to the Public Domain.  Do
-// whatever you want with it.
-
-// Minimal typedefs.  Follows SDL conventions; falls back on SDL.h if
-// platform isn't obvious.
-
-
-#ifndef TU_TYPES_H
-#define TU_TYPES_H
-
-
-#include "base/tu_config.h"
-#include <stdio.h>
-
-
-#if defined(__i386__) || defined(_WIN32) || defined(__GNUC__)
-
-	// On known little-endian platforms, define this stuff.
-	#define _TU_LITTLE_ENDIAN_	1
-	
-	#ifdef TU_USE_SDL
-	#	ifndef _SDL_stdinc_h
-		typedef unsigned char	Uint8;
-		typedef signed char	Sint8;
-		typedef unsigned short	Uint16;
-		typedef short	Sint16;
-		typedef unsigned int	Uint32;
-		typedef int	Sint32;
-	#	endif
-	#else
-	#	ifndef Uint8
-		typedef unsigned char	Uint8;
-		typedef signed char	Sint8;
-		typedef unsigned short	Uint16;
-		typedef short	Sint16;
-		typedef unsigned int	Uint32;
-		typedef int	Sint32;
-	#	endif
-	#endif
-
-	#ifndef _MSC_VER
-		// Probably gcc or something compatible
-		typedef unsigned long long	Uint64;
-		typedef long long Sint64;
-	#else	// _MSC_VER
-		typedef unsigned __int64	Uint64;
-		typedef __int64	Sint64;
-	#endif	// _MSC_VER
-
-#else	// not __I386__ and not _WIN32
-
-	// On unknown platforms, rely on SDL
-	#include <SDL.h>
-	
-	#if SDL_BYTEORDER == SDL_LIL_ENDIAN
-		#define _TU_LITTLE_ENDIAN_ 1
-	#else
-		#undef _TU_LITTLE_ENDIAN_
-	#endif // SDL_BYTEORDER == SDL_LIL_ENDIAN
-
-#endif	// not __I366__ and not _WIN32
-
-
-typedef Uint8 uint8;
-typedef Sint8 sint8;
-typedef Sint8 int8;
-typedef Uint16 uint16;
-typedef Sint16 sint16;
-typedef Sint16 int16;
-typedef Uint32 uint32;
-typedef Sint32 sint32;
-typedef Sint32 int32;
-typedef Uint64 uint64;
-typedef Sint64 sint64;
-typedef Sint64 int64;
-
-#if TU_USES_FLOAT_AS_COORDINATE_COMPONENT
-	typedef float coord_component;
-#else
-	typedef Sint16 coord_component;
-#endif
-
-
-// A function to run some validation checks.
-#ifdef _WIN32
-__declspec(dllexport) bool	tu_types_validate();
-#else // _WIN32
-bool	tu_types_validate();
-#endif
-
-
-#endif // TU_TYPES_H
-
-
-// Local Variables:
-// mode: C++
-// c-basic-offset: 8 
-// tab-width: 8
-// indent-tabs-mode: t
-// End:
+// tu_types.h	-- Ignacio CastaÒo, Thatcher Ulrich 2003
+
+// This source code has been donated to the Public Domain.  Do
+// whatever you want with it.
+
+// Minimal typedefs.  Follows SDL conventions; falls back on SDL.h if
+// platform isn't obvious.
+
+
+#ifndef TU_TYPES_H
+#define TU_TYPES_H
+
+
+#include "base/tu_config.h"
+#include <stdio.h>
+#include <time.h>
+
+#if !defined(_MSC_VER) && !defined(_TIME_T_DEFINED) && !defined(__time_t_defined) && !defined(_TIME_T) && !defined(_TIME_T_DECLARED) && !defined(__DEFINED_time_t)
+typedef long time_t;
+#define _TIME_T_DEFINED
+#define _TIME_T
+#endif
+
+
+#if defined(__i386__) || defined(_WIN32) || defined(__GNUC__)
+
+	// On known little-endian platforms, define this stuff.
+	#define _TU_LITTLE_ENDIAN_	1
+
+	#ifdef TU_USE_SDL
+	#	ifndef _SDL_stdinc_h
+		typedef unsigned char	Uint8;
+		typedef signed char	Sint8;
+		typedef unsigned short	Uint16;
+		typedef short	Sint16;
+		typedef unsigned int	Uint32;
+		typedef int	Sint32;
+	#	endif
+	#else
+	#	ifndef Uint8
+		typedef unsigned char	Uint8;
+		typedef signed char	Sint8;
+		typedef unsigned short	Uint16;
+		typedef short	Sint16;
+		typedef unsigned int	Uint32;
+		typedef int	Sint32;
+	#	endif
+	#endif
+
+	#ifndef _MSC_VER
+		// Probably gcc or something compatible
+		typedef unsigned long long	Uint64;
+		typedef long long Sint64;
+	#else	// _MSC_VER
+		typedef unsigned __int64	Uint64;
+		typedef __int64	Sint64;
+	#endif	// _MSC_VER
+
+#else	// not __I386__ and not _WIN32
+
+	// On unknown platforms, rely on SDL
+	#include <SDL.h>
+
+	#if SDL_BYTEORDER == SDL_LIL_ENDIAN
+		#define _TU_LITTLE_ENDIAN_ 1
+	#else
+		#undef _TU_LITTLE_ENDIAN_
+	#endif // SDL_BYTEORDER == SDL_LIL_ENDIAN
+
+#endif	// not __I366__ and not _WIN32
+
+
+typedef Uint8 uint8;
+typedef Sint8 sint8;
+typedef Sint8 int8;
+typedef Uint16 uint16;
+typedef Sint16 sint16;
+typedef Sint16 int16;
+typedef Uint32 uint32;
+typedef Sint32 sint32;
+typedef Sint32 int32;
+typedef Uint64 uint64;
+typedef Sint64 sint64;
+typedef Sint64 int64;
+
+#if TU_USES_FLOAT_AS_COORDINATE_COMPONENT
+	typedef float coord_component;
+#else
+	typedef Sint16 coord_component;
+#endif
+
+
+// A function to run some validation checks.
+#ifdef _WIN32
+__declspec(dllexport) bool	tu_types_validate();
+#else // _WIN32
+bool	tu_types_validate();
+#endif
+
+
+#endif // TU_TYPES_H
+
+
+// Local Variables:
+// mode: C++
+// c-basic-offset: 8
+// tab-width: 8
+// indent-tabs-mode: t
+// End:
diff --git a/third_party/gameswf/base/utility.h b/third_party/gameswf/base/utility.h
index 2e8ed77..2b5a86e 100644
--- a/third_party/gameswf/base/utility.h
+++ b/third_party/gameswf/base/utility.h
@@ -53,7 +53,7 @@
 
 // Compile-time assert.  Thanks to Jon Jagger
 // (http://www.jaggersoft.com) for this trick.
-#define compiler_assert(x)	switch(0){case 0: case x:;}
+#define compiler_assert(x)	static_assert((x), "compiler_assert failed")
 
 
 //