add extra checking
add extra checking


git-svn-id: b90ab2797f6146e3ba3e3d8b20782c4c2887e809@66 9ca3f7c1-7366-0410-b1a3-b5c78f85698c

robooo/luarocks,xpol/luainstaller,xpol/luavm,robooo/luarocks,keplerproject/luarocks,aryajur/luarocks,leafo/luarocks,coderstudy/luarocks,coderstudy/luarocks,leafo/luarocks,keplerproject/luarocks,usstwxy/luarocks,xpol/luarocks,ignacio/luarocks,xpol/luarocks,tst2005/luarocks,lxbgit/luarocks,aryajur/luarocks,usstwxy/luarocks,leafo/luarocks,xpol/luainstaller,xiaq/luarocks,rrthomas/luarocks,tst2005/luarocks,keplerproject/luarocks,coderstudy/luarocks,xpol/luarocks,aryajur/luarocks,rrthomas/luarocks,luarocks/luarocks,xiaq/luarocks,tarantool/luarocks,xpol/luavm,tst2005/luarocks,xpol/luainstaller,xpol/luarocks,ignacio/luarocks,starius/luarocks,xiaq/luarocks,tarantool/luarocks,keplerproject/luarocks,xpol/luavm,coderstudy/luarocks,robooo/luarocks,xpol/luavm,robooo/luarocks,starius/luarocks,usstwxy/luarocks,rrthomas/luarocks,lxbgit/luarocks,luarocks/luarocks,starius/luarocks,xpol/luainstaller,lxbgit/luarocks,tst2005/luarocks,luarocks/luarocks,xpol/luavm,lxbgit/luarocks,tarantool/luarocks,xiaq/luarocks,ignacio/luarocks,starius/luarocks,ignacio/luarocks,usstwxy/luarocks,rrthomas/luarocks,aryajur/luarocks