FS-9009 [mod_avmd] #fix build on Windows

Windows VC doesn't accept function __attribute__(s)

src/mod/applications/mod_avmd/avmd_amplitude.h

@@ -15,6 +15,11 @@
 #include "avmd_buffer.h"
 
 
+#ifdef WIN32
+#define __attribute__(x)
+#endif
+
+
 double avmd_amplitude(circ_buffer_t *, size_t i, double f) __attribute__ ((nonnull(1)));
 
 

src/mod/applications/mod_avmd/avmd_desa2.h

@@ -15,6 +15,12 @@
 #include <math.h>
 #include "avmd_buffer.h"
 
+
+#ifdef WIN32
+#define __attribute__(x)
+#endif
+
+
 /* Returns digital frequency estimation and amplitude estimation. */
 extern double avmd_desa2(circ_buffer_t *b, size_t i, double *amplitude) __attribute__ ((nonnull(1,3)));
 

src/mod/applications/mod_avmd/avmd_desa2_tweaked.h

@@ -21,6 +21,11 @@
 #include <switch.h>
 
 
+#ifdef WIN32
+#define __attribute__(x)
+#endif
+
+
 /* Instead of returning digital frequency estimation using
  *      result = 0.5 * acos(n/d),
  * which involves expensive computation of arc cosine on

src/mod/applications/mod_avmd/mod_avmd.c

@@ -35,6 +35,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+
 #ifdef WIN32
 #include <float.h>
 #define ISNAN(x) (!!(_isnan(x)))