Changed the OS4 release package name

Makefile.os4

@@ -78,5 +78,5 @@ release:
 	cp README.md release/LiteXL2/
 	cp README_OS4.md release/LiteXL2/
 	cp LICENSE release/LiteXL2/
-	lha -aeqr3 a LiteXL2.lha release/
+	lha -aeqr3 a LiteXL2_OS4.lha release/
 

src/api/system.c

@@ -101,6 +101,8 @@ static const char *numpad[] = { "end", "down", "pagedown", "left", "", "right",
 
 static const char *get_key_name(const SDL_Event *e, char *buf) {
   SDL_Scancode scancode = e->key.keysym.scancode;
+  
+  #if !defined(__amigaos4__) && !defined(__MORPHOS__)
   /* Is the scancode from the keypad and the number-lock off?
   ** We assume that SDL_SCANCODE_KP_1 up to SDL_SCANCODE_KP_9 and SDL_SCANCODE_KP_0
   ** and SDL_SCANCODE_KP_PERIOD are declared in SDL2 in that order. */
@@ -108,6 +110,8 @@ static const char *get_key_name(const SDL_Event *e, char *buf) {
     !(e->key.keysym.mod & KMOD_NUM)) {
     return numpad[scancode - SDL_SCANCODE_KP_1];
   } else {
+  #endif
+  
     /* We need to correctly handle non-standard layouts such as dvorak.
        Therefore, if a Latin letter(code<128) is pressed in the current layout,
        then we transmit it as it is. But we also need to support shortcuts in
@@ -119,7 +123,10 @@ static const char *get_key_name(const SDL_Event *e, char *buf) {
       strcpy(buf, SDL_GetScancodeName(scancode));
     str_tolower(buf);
     return buf;
+  
+  #if !defined(__amigaos4__) && !defined(__MORPHOS__)
   }
+  #endif
 }
 
 static int f_poll_event(lua_State *L) {