[PD] compiling PD on windows

[rolfm at dds.nl]

thanks everyone for your advices.

i made 2 major mistakes:

1. i thought it's possible to use /src in Miller's download for Windows.
2. using MSYS2 instead of MSYS2 MINGw32.

in both cases one has to provide additional tools and/or the correct 
path to them in the Windows system.
therefore the "cl.exe not found".
MINGW32 has them included.

so, with the sources from github i succeeded to make the app.

the verbosity of the output of the whole proces is quite overwhelming 
for someone like me.
there were a number of warnings:
e.g.: "remember to run 'libtool --finish /..../bob~
or: "assignment from incompatible pointer"

is it necessary to do something with them?

@lucas
great, you saved me the efforts to find out what to use on XP (MSYS2 
doesn't work anymore on XP).

rolf