[PD] comport rxerrors on W10

[rolfm at dds.nl]

so far so good

after a lot of fruitless searching for the right answers
i took the liberty to change the makefile_win.

     $(VIS_CPP_PATH)\lib\libc.lib \
     $(VIS_CPP_PATH)\lib\oldnames.lib \
     $(VIS_CPP_PATH)\lib\kernel32.lib \
     $(VIS_CPP_PATH)\lib\wsock32.lib \
     $(VIS_CPP_PATH)\lib\winmm.lib \
i did away with the ones above.

     $(PD_INST_PATH)\bin\pthreadVC.lib \
     $(PD_INST_PATH)\bin\pd.lib
these 'local' ones i took from one of the latest Vanilla's (46.7).

no compile errors!

replacing the old comport.dll in pdext 43.4 with the new-compiled one: 
TADA it seems to work.

data is coming through, and no rxerrors.

minor point probably: i don't get a console message when a port is 
opened succesfully.
the close message disappeared also.

more extensive testing/use will follow in the coming days.

thanks, rolf