4 files changed, 27 insertions, 7 deletions
diff --git a/gnuradio-core/src/lib/general/gri_fft.cc b/gnuradio-core/src/lib/general/gri_fft.cc
index 68e7e69519..78446ad39b 100644
--- a/gnuradio-core/src/lib/general/gri_fft.cc
+++ b/gnuradio-core/src/lib/general/gri_fft.cc
@@ -59,6 +59,12 @@ gri_fft_malloc_float(int size)
   return (float*)fftwf_malloc(sizeof(float)*size);
 }
 
+double *
+gri_fft_malloc_double(int size)
+{
+  return (double*)fftwf_malloc(sizeof(double)*size);
+}
+
 void
 gri_fft_free(void *b)
 {
diff --git a/gnuradio-core/src/lib/general/gri_fft.h b/gnuradio-core/src/lib/general/gri_fft.h
index 65e9d046e2..c6fbd4f43f 100644
--- a/gnuradio-core/src/lib/general/gri_fft.h
+++ b/gnuradio-core/src/lib/general/gri_fft.h
@@ -30,17 +30,21 @@
 #include <gr_complex.h>
 #include <boost/thread.hpp>
 
-/*! \brief Helper function for allocating complex fft buffers
+/*! \brief Helper function for allocating complex* buffers
  */
-gr_complex* gri_fft_malloc_complex(int size);
+GR_CORE_API gr_complex* gri_fft_malloc_complex(int size);
 
-/*! \brief Helper function for allocating float fft buffers
+/*! \brief Helper function for allocating float* buffers
  */
-float* gri_fft_malloc_float(int size);
+GR_CORE_API float* gri_fft_malloc_float(int size);
+
+/*! \brief Helper function for allocating double* buffers
+ */
+GR_CORE_API double* gri_fft_malloc_double(int size);
 
 /*! \brief Helper function for freeing fft buffers
  */
-void gri_fft_free(void *b);
+GR_CORE_API void gri_fft_free(void *b);
 
 
 /*!
diff --git a/gr-fft/include/fft/fft.h b/gr-fft/include/fft/fft.h
index e3fd3f278a..305b1cb711 100644
--- a/gr-fft/include/fft/fft.h
+++ b/gr-fft/include/fft/fft.h
@@ -35,14 +35,18 @@ namespace gr {
   namespace fft {
 
 
-    /*! \brief Helper function for allocating complex fft buffers
+    /*! \brief Helper function for allocating complex* buffers
      */
     FFT_API gr_complex* malloc_complex(int size);
 
-    /*! \brief Helper function for allocating float fft buffers
+    /*! \brief Helper function for allocating float* buffers
      */
     FFT_API float* malloc_float(int size);
     
+    /*! \brief Helper function for allocating double* buffers
+     */
+    FFT_API double* malloc_double(int size);
+
     /*! \brief Helper function for freeing fft buffers
      */
     FFT_API void free(void *b);
diff --git a/gr-fft/lib/fft.cc b/gr-fft/lib/fft.cc
index 6074236e18..60838ee302 100644
--- a/gr-fft/lib/fft.cc
+++ b/gr-fft/lib/fft.cc
@@ -62,6 +62,12 @@ namespace gr {
       return (float*)fftwf_malloc(sizeof(float)*size);
     }
 
+    double *
+    malloc_double(int size)
+    {
+      return (double*)fftwf_malloc(sizeof(double)*size);
+    }
+
     void
     free(void *b)
     {