Header file locations

[chengas123]

Hi,
I'm new to WINE and a bit rusty with C, so forgive me if my questions are a
bit basic.
I'm having trouble finding header files.  For example, take a look at
http://source.winehq.org/source/dlls/secur32/schannel.c  There's a line that
says '#include "schannel.h"', but I'm not sure where that file is.

Thanks,
Ben