Registering applications with Asterisk

I have an external application to register with Asterisk, such as the convert module available at For the installation, the C file has to be compiled as make AST_HEADER=/path_to_asterisk_header

How do I find this header in my installation? The default header is not valid for my installtion.

Thanks for the help.


Looking how it is done in other asterisk applications which are already registered in your installation