Initial work on SF FRQ #3567063.
Free the WinThread structure before running the original thread procedure.
Make compilation of the fp control changes possible with MinGW.
When checking for std channels being closed, compare the channel state,
not the channel itself so that stacked channels do not cause trouble.
merge 8.4
experimental implementation of FRQ-3579001
syntax improvement: expect options before the filename
<p>start at documentation
merge trunk
merge trunk: INST_TAILCALL has bug
merge trunk
Finish the TIP #416 implementation as specified (#define's were still missing). Added warning to "load" documentation. Added test case for using -global without specifying filename.
merge trunk
Create Tcl 8.6.0 release branch
Declare TclOO portion of the Tcl API to be stable -> TclOO 1.0
merge trunk
merge trunk
merge trunk
merge trunk. 
<p>doc fix
also search for the library directory (init.tcl, encodings, etc) relative to the build directory associated with the source checkout.
also search for the library directory (init.tcl, encodings, etc) relative to the build directory associated with the source checkout.