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examples/: build with -Wdeclaration-after-statement

--- a/examples/aubionotes.c

+++ b/examples/aubionotes.c

@@ -47,17 +47,18 @@

 void process_block (fvec_t *ibuf, fvec_t *obuf)

 {

+  smpl_t new_pitch, curlevel;

   fvec_zeros(obuf);

   aubio_onset_do(o, ibuf, onset);

   aubio_pitch_do (pitch, ibuf, pitch_obuf);

-  smpl_t new_pitch = fvec_get_sample(pitch_obuf, 0);

+  new_pitch = fvec_get_sample(pitch_obuf, 0);

   if(median){

     note_append(note_buffer, new_pitch);

   }

   /* curlevel is negatif or 1 if silence */

-  smpl_t curlevel = aubio_level_detection(ibuf, silence_threshold);

+  curlevel = aubio_level_detection(ibuf, silence_threshold);

   if (fvec_get_sample(onset, 0)) {

     /* test for silence */

     if (curlevel == 1.) {

--- a/examples/aubiopitch.c

+++ b/examples/aubiopitch.c

@@ -30,10 +30,11 @@

 void process_block(fvec_t * ibuf, fvec_t * obuf)

 {

+  smpl_t freq;

   aubio_pitch_do (o, ibuf, pitch);

   if ( !usejack && ! sink_uri ) return;

   fvec_zeros(obuf);

-  smpl_t freq = fvec_get_sample(pitch, 0);

+  freq = fvec_get_sample(pitch, 0);

   aubio_wavetable_set_amp ( wavetable, aubio_level_lin (ibuf) );

   aubio_wavetable_set_freq ( wavetable, freq );

   if (mix_input)

--- a/examples/utils.c

+++ b/examples/utils.c

@@ -148,8 +148,8 @@

   } else {

     /* phasevoc */

-    blocks = 0;

     uint_t total_read = 0;

+    blocks = 0;

     do {

       aubio_source_do (this_source, ibuf, &read);