Fixing cross-compiling issues on android arm

webrtc/modules/audio_processing/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/arm.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 266 matching lines @@
       "ns/windows_private.h",
     ]
   }
 
   deps = [
     "../..:webrtc_common",
     "../../base:rtc_base_approved",
     "../../common_audio",
     "../../system_wrappers",
   ]
+
+  if (rtc_build_with_neon) {
+    deps += [ ":audio_processing_neon_c" ]
+  }
 }
 
 if (rtc_enable_protobuf) {
   proto_library("audioproc_debug_proto") {
     sources = [
       "debug.proto",
     ]
 
     proto_out_dir = "webrtc/modules/audio_processing"
   }
@@ skipping 61 matching lines @@
     ]
 
     if (apm_debug_dump) {
       defines = [ "WEBRTC_APM_DEBUG_DUMP=1" ]
     } else {
       defines = [ "WEBRTC_APM_DEBUG_DUMP=0" ]
     }
   }
 
   rtc_static_library("audio_processing_neon_c") {
+    # TODO(mbonadei): Remove (bugs.webrtc.org/6828)
+    # Errors on cyclic dependency with :audio_processing_c if enabled.
+    check_includes = false
+
     sources = [
       "ns/nsx_core_neon.c",
     ]
 
     if (current_cpu != "arm64") {
       # Enable compilation for the NEON instruction set. This is needed
       # since //build/config/arm.gni only enables NEON for iOS, not Android.
       # This provides the same functionality as webrtc/build/arm_neon.gypi.
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
       cflags = [ "-mfpu=neon" ]
     }
 
     # Disable LTO on NEON targets due to compiler bug.
     # TODO(fdegans): Enable this. See crbug.com/408997.
     if (rtc_use_lto) {
       cflags -= [
         "-flto",
         "-ffat-lto-objects",
       ]
     }
     deps = [
-      ":audio_processing_c",
       "../../base:rtc_base_approved",
     ]
   }
 }
 
 if (rtc_include_tests) {
   group("audio_processing_tests") {
     testonly = true
     public_deps = [
       ":audioproc_test_utils",
@@ skipping 318 matching lines @@
       ]
 
       deps = [
         ":audioproc_debug_proto",
         "../..:webrtc_common",
         "../../base:rtc_base_approved",
       ]
     }
   }
 }