[Discuss-gnuradio] FFTW 3.1/ PortAudio

[Robert McGwier]

On building FFTW3.1  the following works

configure --enable-sse --enable-threads --enable-shared  --enable-float  
--enable-3dnow

--enable-k7 and --enable-shared do not work together but 3dnow works 
with shared.  Go figure.  This library has been tested on my P4HT,  Dual 
Athlon MP,  8 head Athlon Dual Core Opteron, and through MinGW on my 
windows machines.  On Winblows --enable-threads does not work yet and in 
addition one must use --with-our-malloc16  to prevent certain problems 
on Windows and the win32 malloc.  Cygwin has released pthreads-win32 and 
it works as a native win32 library.  This is probably the basis for 
pthreads under cygwin so I will attempt to do the library under cygwin 
to see if we can get thread safer code.   Frank and I use pthreads in 
the Win32 version of DttSP.

I am looking for a bug in my callback under portaudio on DttSP.  This 
will enable us to cross platform DttSP on linux, bsd, mac, and wintel.   
I have built gr-audio-portaudio but I want to make sure that it supports 
a rich enough set of  features to use libportaudio and pa19.dll on linux 
and winblows respectively which is the only real reason for using 
portaudio.  I will ask for help here and elsewhere with talking to 
coreaudio since I do not own a mac machine and the ones I have at work 
are locked in.  It is my belief that this will really make 
gnuradio-win32 a possibility after all  the great work done by DvH, 
Fillod, etc.

Bob

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