diff -Naur webrtc-audio-processing-1.0.org/meson.build webrtc-audio-processing-1.0.sw/meson.build
--- webrtc-audio-processing-1.0.org/meson.build	2022-05-17 05:51:34.850000000 +0000
+++ webrtc-audio-processing-1.0.sw/meson.build	2022-05-17 05:58:14.940000000 +0000
@@ -80,6 +80,7 @@
 have_armv7 = false
 have_neon = false
 have_mips = false
+have_sw_64 = false
 have_mips64 = false
 have_x86 = false
 have_avx2 = false
diff -Naur webrtc-audio-processing-1.0.org/webrtc/rtc_base/system/arch.h webrtc-audio-processing-1.0.sw/webrtc/rtc_base/system/arch.h
--- webrtc-audio-processing-1.0.org/webrtc/rtc_base/system/arch.h	2022-05-17 05:51:34.840000000 +0000
+++ webrtc-audio-processing-1.0.sw/webrtc/rtc_base/system/arch.h	2022-05-17 05:54:18.720000000 +0000
@@ -23,6 +23,10 @@
 #define WEBRTC_ARCH_X86_64
 #define WEBRTC_ARCH_64_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
+#elif defined(_M_SW_64) || defined(__sw_64__)
+#define WEBRTC_ARCH_SW_64_FAMILY
+#define WEBRTC_ARCH_64_BITS
+#define WEBRTC_ARCH_LITTLE_ENDIAN
 #elif defined(_M_ARM64) || defined(__aarch64__)
 #define WEBRTC_ARCH_ARM_FAMILY
 #define WEBRTC_ARCH_64_BITS