webrtc m98编译问题

执行命令

gn gen --target=x64 --ide=vs2019 --args="is_debug=true rtc_enable_protobuf=false is_clang=false target_cpu=\"x64\"  enable_iterator_debugging=true  use_custom_libcxx=false symbol_level=0 rtc_include_tests=false" out/debug_x64

异常

ERROR at //build/toolchain/win/BUILD.gn:528:9: Assignment had no effect."-libpath:$_clang_lib_dir ${win_toolchain_data.libpath_flags}"^-------------------------------------------------------------
You set the variable "sys_lib_flags" here and it was unused before it went
out of scope.
See //build/toolchain/win/BUILD.gn:542:3: whence it was called.win_toolchains("x86") {^----------------------
See //BUILD.gn:30:3: which caused the file to be included.group("default") {^-----------------

解决办法和问题分析

• 直接注释掉 //build/toolchain/win/BUILD.gn:542这行代码