From 4b251ae94c0ea51c85f7ff121550129bda53dbab Mon Sep 17 00:00:00 2001
From: Paul Brossier <piem@piem.org>
Date: Tue, 30 Aug 2016 16:33:31 +0200
Subject: [PATCH] src/spectral/fft.c: make calls to fftw_destroy_plan
 thread-safe

---
 src/spectral/fft.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/spectral/fft.c b/src/spectral/fft.c
index e8dfc1a0..e58bb6f7 100644
--- a/src/spectral/fft.c
+++ b/src/spectral/fft.c
@@ -212,9 +212,11 @@ void del_aubio_fft(aubio_fft_t * s) {
   /* destroy data */
   del_fvec(s->compspec);
 #ifdef HAVE_FFTW3             // using FFTW3
+  pthread_mutex_lock(&aubio_fftw_mutex);
   fftw_destroy_plan(s->pfw);
   fftw_destroy_plan(s->pbw);
   fftw_free(s->specdata);
+  pthread_mutex_unlock(&aubio_fftw_mutex);
 #else /* HAVE_FFTW3 */
 #ifdef HAVE_ACCELERATE        // using ACCELERATE
   AUBIO_FREE(s->spec.realp);
-- 
2.11.0