llvm dev - Mar 2015 - [LLVMdev] clang Plugin

Hi,Guys
I just test a demo according to
http://www.hanshq.net/clang-plugin-example.html

but I run the command:

clang -cc1 -load ./ParameterNameChecker.so -plugin check-parameter-names test.c

but there is an error as follows:
error: unable to find plugin 'check-parameter-names'

I want to know if all the version of llvm that support the clang-plugin, or
maybe some update withe the update of llvm.

I am interesting to find how to make it work.

Thanks,
yao
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