src/init.c: bail out if skin_name or font_name is "".

Fixes a crash on AROS

src/filesel.c: fixed BSTR conversion routine for AROS.
Without this fix "RAM DISK" was printed as "AM DISK" in
the file selector.

src/setup.c: removed slash to avoid that paths like
"PROGDIR:/share" are created on AROS. That fix should be right
for all Amiga like OS but I don't want to change things
which I can't test.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1970 416bcca6-2ee7-4201-b75f-2eb2f807beb1

src/init.c

@@ -664,6 +664,12 @@ T_Gui_skin * Load_graphics(const char * skin_file, T_Gradient_array *gradients)
   char filename[MAX_PATH_CHARACTERS];
   SDL_Surface * gui;
 
+  if (skin_file[0] == '\0')
+  {
+    sprintf(Gui_loading_error_message, "Wrong skin file name \"\"\n");
+    return NULL;
+  }
+
   gfx = (T_Gui_skin *)malloc(sizeof(T_Gui_skin));
   if (gfx == NULL)
   {
@@ -744,6 +750,12 @@ byte * Load_font(const char * font_name)
   char filename[MAX_PATH_CHARACTERS];
   SDL_Surface * image;
 
+  if (font_name[0] == '\0')
+  {
+    sprintf(Gui_loading_error_message, "Wrong font name \"\"\n");
+    return NULL;
+  }
+
   font = (byte *)malloc(8*8*256);
   if (font == NULL)
   {