Compile SoX With CoreAudio On Win7 64-bit With Cygwin

Question

I can't quite figure out how to get SoX to compile with CAF support. I have the libsndfile compiled and in the library folder gcc looks for. I compiled libsndfile like this:

./configure --build=x86_64 --disable-shared --enable-static

and that worked, I see it generates a caf.lo file, but when I try to compile SoX, it fails with this:

checking CoreAudio/CoreAudio.h usability... no
checking CoreAudio/CoreAudio.h presence... no
checking for CoreAudio/CoreAudio.h... no
configure: error: in `/cygdrive/c/sox/sox-14.4.1':
configure: error: cannot find coreaudio
See `config.log' for more details

Since this isn't a mac I'm compiling on, I expect usability to be "no", but it should find the library for CAF, shouldn't it?

The C:\cygwin64\usr\local\lib folder contains libsndfile.la & libsndfile.a

Answer 1

I guess you have been tricked, by the similarity of the names Core Audio Format (the CAF file format) and Core Audio (a MacOS X sound API), into calling configure --with-coreaudio. (You haven’t shown your command line.) However, those two are quite unrelated, and Core Audio cannot be present on a Windows machine.

Just drop the --with-coreaudio. If you insist, you can add --with-sndfile instead, since as you already know, CAF is provided by libsndfile; but it shouldn’t be necessary, because SoX by default will use all available libraries.