fix compilation without jack
void examples_common_process(aubio_process_func_t process_func, aubio_print_func_t print ){
if(usejack) {
-#ifdef JACK_SUPPORT
+#if JACK_SUPPORT
aubio_jack_t * jack_setup;
debug("Jack init ...\n");
jack_setup = new_aubio_jack(channels, channels,
void examples_common_init(int argc, char **argv);
void examples_common_del(void);
typedef void (aubio_print_func_t)(void);
+#ifndef JACK_SUPPORT
+typedef int (*aubio_process_func_t)
+ (smpl_t **input, smpl_t **output, int nframes);
+#endif
void examples_common_process(aubio_process_func_t process_func, aubio_print_func_t print);