fix abseil cpp build error.

Author: cloudwebrtc

webrtc-sys/libwebrtc/build_linux.sh

@@ -99,6 +99,10 @@ cd third_party
 
 git apply "$COMMAND_DIR/patches/david_disable_gun_source_macro.patch" -v --ignore-space-change --ignore-whitespace --whitespace=nowarn
 
+if [ "$arch" = "x64" ]; then
+  git apply "$COMMAND_DIR/patches/fix_abseil_cpp_build_on_x64.patch" -v --ignore-space-change --ignore-whitespace --whitespace=nowarn
+fi
+
 cd libyuv
 
 git apply "$COMMAND_DIR/patches/disable_sme_for_libyuv.patch" -v --ignore-space-change --ignore-whitespace --whitespace=nowarn

webrtc-sys/libwebrtc/patches/fix_abseil_cpp_build_on_x64.patch

@@ -0,0 +1,13 @@
+diff --git a/abseil-cpp/absl/container/internal/raw_hash_set.h b/abseil-cpp/absl/container/internal/raw_hash_set.h
+index 191b1c9bb8..57c1cec741 100644
+--- a/abseil-cpp/absl/container/internal/raw_hash_set.h
++++ b/abseil-cpp/absl/container/internal/raw_hash_set.h
+@@ -226,7 +226,7 @@
+ #endif
+ 
+ #ifdef __BMI2__
+-#include <bmi2intrin.h>
++#include <x86gprintrin.h>
+ #endif  // __BMI2__
+ 
+ namespace absl {