Added in native modules suffixes. (#1111)

* Added in native modules with suffixes, giving priority to those with matching architectures and platforms.

* PowerPC isn't x86, and it's x86_64.

* Changed things over to allow compiler to set a tuple, makes more sense from a build perspective.

* Spelling mistake.

* Added in arm target tuples.

src/main.c

@@ -82,6 +82,28 @@ void set_macos_bundle_resources(lua_State *L);
 #endif
 #endif
 
+#ifndef LITE_ARCH_TUPLE
+  #if __x86_64__ || _WIN64 || __MINGW64__
+    #define ARCH_PROCESSOR "x86_64"
+  #elif __aarch64__
+    #define ARCH_PROCESSOR "aarch64"
+  #elif __arm__
+    #define ARCH_PROCESSOR "arm"
+  #else
+    #define ARCH_PROCESSOR "x86"
+  #endif
+  #if _WIN32
+    #define ARCH_PLATFORM "windows"
+  #elif __linux__
+    #define ARCH_PLATFORM "linux"
+  #elif __APPLE__
+    #define ARCH_PLATFORM "darwin"
+  #else
+    #error "Please define -DLITE_ARCH_TUPLE."
+  #endif
+  #define LITE_ARCH_TUPLE ARCH_PROCESSOR "-" ARCH_PLATFORM
+#endif
+
 int main(int argc, char **argv) {
 #ifdef _WIN32
   HINSTANCE lib = LoadLibrary("user32.dll");
@@ -151,6 +173,9 @@ init_lua:
   lua_pushstring(L, SDL_GetPlatform());
   lua_setglobal(L, "PLATFORM");
 
+  lua_pushstring(L, LITE_ARCH_TUPLE);
+  lua_setglobal(L, "ARCH");
+
   lua_pushnumber(L, get_scale());
   lua_setglobal(L, "SCALE");