[PD] compiling PD on windows --> with MSYS1

[rolfm at dds.nl]

(with some delay)

succeeded in compiling on my old machine(s) with XP.

to run Pd it was necessary to copy libgcc_s_dw2.dll and pthreadGC-3.dll 
from Mingw/bin
to pd/bin.

also VC90.CRT was needed; downloading vcredist_86.exe and installing 
solved that.

i copied the externals from my W10 machine (bsaylor, comport, iemguts, 
zexy);

so far so good.

thnx for the help(s).

rolf