Merged Bugzilla #354 fix into trunk.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402256

src/loadso/dlopen/SDL_sysloadso.c

@@ -47,11 +47,12 @@ SDL_LoadFunction(void *handle, const char *name)
 {
     void *symbol = dlsym(handle, name);
     if (symbol == NULL) {
+        /* append an underscore for platforms that need that. */
         size_t len = 1 + SDL_strlen(name) + 1;
         char *_name = SDL_stack_alloc(char, len);
         _name[0] = '_';
         SDL_strlcpy(&_name[1], name, len);
-        symbol = dlsym(handle, name);
+        symbol = dlsym(handle, _name);
         SDL_stack_free(_name);
         if (symbol == NULL) {
             SDL_SetError("Failed loading %s: %s", name,