From 1c25b884b67449de3f8ff6d4c2a2e8c83ae1f74f Mon Sep 17 00:00:00 2001
From: Josh Blum
Date: Wed, 20 Jul 2011 12:01:55 -0700
Subject: core: hack needed for gri wisdom on windows because you cant pass
 file descriptors across library boundaries

---
 gnuradio-core/src/lib/general/gri_fft.cc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'gnuradio-core/src')

diff --git a/gnuradio-core/src/lib/general/gri_fft.cc b/gnuradio-core/src/lib/general/gri_fft.cc
index f20b15ca0..0df1af25d 100644
--- a/gnuradio-core/src/lib/general/gri_fft.cc
+++ b/gnuradio-core/src/lib/general/gri_fft.cc
@@ -23,6 +23,19 @@
 #include <gri_fft.h>
 #include <gr_sys_paths.h>
 #include <fftw3.h>
+
+#ifdef _MSC_VER //http://www.fftw.org/install/windows.html#DLLwisdom
+static void my_fftw_write_char(char c, void *f) { fputc(c, (FILE *) f); }
+#define fftw_export_wisdom_to_file(f) fftw_export_wisdom(my_fftw_write_char, (void*) (f))
+#define fftwf_export_wisdom_to_file(f) fftwf_export_wisdom(my_fftw_write_char, (void*) (f))
+#define fftwl_export_wisdom_to_file(f) fftwl_export_wisdom(my_fftw_write_char, (void*) (f))
+
+static int my_fftw_read_char(void *f) { return fgetc((FILE *) f); }
+#define fftw_import_wisdom_from_file(f) fftw_import_wisdom(my_fftw_read_char, (void*) (f))
+#define fftwf_import_wisdom_from_file(f) fftwf_import_wisdom(my_fftw_read_char, (void*) (f))
+#define fftwl_import_wisdom_from_file(f) fftwl_import_wisdom(my_fftw_read_char, (void*) (f))
+#endif //_MSC_VER
+
 #include <gr_complex.h>
 #include <stdlib.h>
 #include <string.h>
-- 
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