WaitForMultipleObjects sources for a C application

Dear All,

I have downloaded the source code for the WaitForMultipleObjects API to
use on Linux box from the following link. 
http://home.arcor.de/rdengler/

However, the sources are developed in the C++. I am not able to use
these sources in my C application due to classes and its definitions.
When I tried to convert the classes into an equivalent C structures I
got the following error. 

std::set<CWinEventHandle*> m_Subscriber; // Used in
WaitForMultipleObjects()

Could you please let me know how can I use CPP sources in a C
application? Is there any equivalent C code for the same
WaitForMultipleObjects?

Thanks in advance.

With Regards,
Srinivas G