are excluded.  This typically includes (as of Tcl 8.6):
			itcl thread

	10. KC_TCL_STATICPKGS
		Set this variable to the value "1" to attempt to force the
		packages included in the "pkgs" directory of Tcl 8.6+
		to be compiled statically


Cross compiling Environment Variables:

	1. CC  
		C compiler   e.g. i686-pc-mingw32-gcc

	2. CXX