[mythtv] Win32 builds failing on latests builds....?

[Andrei Tanas]

> SVN 15283 does not seem to build on Win32:
> 
> main.cpp:119: error: `SIGHUP' was not declared in this scope
> main.cpp:119: warning: unused variable 'SIGHUP'


See ticket 4409 (http://svn.mythtv.org/trac/ticket/4409)