There is no warning in the original one, and nobody has reported it as not working :
http://forums.alliedmods.net/showthread.php?p=1113644
You obviously broke something in plugin and it doesn't seem to have anything related to amxx version.
And no, when compiler says you don't use variables, you don't use them.
Example :
all occurences of gp_AutoOpen variable:
Code:
Line 64: new gp_AutoOpen
Line 234: gp_AutoOpen = register_cvar("jbe_autoopen", "1")
So you never use it, you could completely remove those 2 lines it wouldn't change anything to the plugin.
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