[PD-dev] building Pd from git with asio support: portaudio can't find asio headers

[Christof Ressi]

Hi Dan,

I know, there is more urgent stuff going on right now, but in case I forget:

I tried to compile Pd from git with asio support. My system is msys2 on Windows 7. When compiling portaudio, gcc can't find the necessary ASIO headers (which are in asio/ASIOSDK2). I tried to add the directory via configure (--includedir, CFLAGS, CPPFLAGS, ...) without success.
 
copying the following header files from ASIOSDK2 to /portaudio/portaudio/include did the trick:

asio.h
asiodrivers.h
asiodrvr.h
asiosys.h
combase.h
ginclude.h
iasiodrv.h
pc/asiolist.h (yes, asiolist.h has to be in a folder 'pc')

also, ASIO seems to link dynamically to libstdc++-6.dll from msys64/mingw32/bin. for me, there was an interference with another version of libstdc++-6.dll somewhere in my system. I also had this problem with openFrameworks. I think it's good to either link statically or to copy libstdc++-6.dll into Pd's bin folder. The latter is my personal solution for now. For OF, I always put it into the export folder so it gets copied automatically everytime I compile a new app. I can remember that other people had this problem with OF so I can imagine it could also be a problem with Pd.

Christof