Fix compile error for non Intel platforms

webrtc/modules/audio_processing/utility/ooura_fft.cc

 /*
  * http://www.kurims.kyoto-u.ac.jp/~ooura/fft.html
  * Copyright Takuya OOURA, 1996-2001
  *
  * You may use, copy, modify and distribute this code for any purpose (include
  * commercial use) and without fee. Please refer to this package when you modify
  * this code.
  *
  * Changes by the WebRTC authors:
  *    - Trivial type modifications.
@@ skipping 330 matching lines @@
   rftbsub_128(a);
   bitrv2_128(a);
   cftbsub_128(a);
 }
 
 void OouraFft::cft1st_128(float* a) const {
 #if defined(MIPS_FPU_LE)
   cft1st_128_mips(a);
 #elif defined(WEBRTC_HAS_NEON)
   cft1st_128_neon(a);
-#else
+#elif defined(WEBRTC_ARCH_X86_FAMILY)
   if (use_sse2_) {
     cft1st_128_SSE2(a);
   } else {
     cft1st_128_C(a);
   }
+#else
+  cft1st_128_C(a);
 #endif
 }
 void OouraFft::cftmdl_128(float* a) const {
 #if defined(MIPS_FPU_LE)
   cftmdl_128_mips(a);
 #elif defined(WEBRTC_HAS_NEON)
   cftmdl_128_neon(a);
-#else
+#elif defined(WEBRTC_ARCH_X86_FAMILY)
   if (use_sse2_) {
     cftmdl_128_SSE2(a);
   } else {
     cftmdl_128_C(a);
   }
+#else
+  cftmdl_128_C(a);
 #endif
 }
 void OouraFft::rftfsub_128(float* a) const {
 #if defined(MIPS_FPU_LE)
   rftfsub_128_mips(a);
 #elif defined(WEBRTC_HAS_NEON)
   rftfsub_128_neon(a);
-#else
+#elif defined(WEBRTC_ARCH_X86_FAMILY)
   if (use_sse2_) {
     rftfsub_128_SSE2(a);
   } else {
     rftfsub_128_C(a);
   }
+#else
+  rftfsub_128_C(a);
 #endif
 }
 
 void OouraFft::rftbsub_128(float* a) const {
 #if defined(MIPS_FPU_LE)
   rftbsub_128_mips(a);
 #elif defined(WEBRTC_HAS_NEON)
   rftbsub_128_neon(a);
-#else
+#elif defined(WEBRTC_ARCH_X86_FAMILY)
   if (use_sse2_) {
     rftbsub_128_SSE2(a);
   } else {
     rftbsub_128_C(a);
   }
+#else
+  rftbsub_128_C(a);
 #endif
 }
 
 void OouraFft::cftbsub_128(float* a) const {
   int j, j1, j2, j3, l;
   float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
 
   cft1st_128(a);
   cftmdl_128(a);
   l = 32;
@@ skipping 119 matching lines @@
     yr = a[k1 + 0];
     yi = a[k1 + 1];
     a[j1 + 0] = yr;
     a[j1 + 1] = yi;
     a[k1 + 0] = xr;
     a[k1 + 1] = xi;
   }
 }
 
 }  // namespace webrtc