--- src/webrtc/src/build/toolchain/gcc_toolchain.gni.orig	2022-02-16 12:34:12 UTC
+++ src/webrtc/src/build/toolchain/gcc_toolchain.gni
@@ -46,6 +46,13 @@ if (enable_resource_allowlist_generation) {
       "enable_resource_allowlist_generation=true does not work for target_os=$target_os")
 }
 
+declare_args() {
+  extra_cflags = ""
+  extra_cppflags = ""
+  extra_cxxflags = ""
+  extra_ldflags = ""
+}
+
 # This template defines a toolchain for something that works like gcc
 # (including clang).
 #
@@ -409,8 +416,10 @@ template("single_gcc_toolchain") {
         command = "cmd /s /c \"\"$python_path\" $tool_wrapper_path delete-file {{output}} && $command\""
       } else {
         command = "rm -f {{output}} && $command"
-        inputs =
-            [ get_path_info(rebase_path(ar, ".", root_out_dir), "abspath") ]
+        if (!is_bsd) {
+          inputs =
+              [ get_path_info(rebase_path(ar, ".", root_out_dir), "abspath") ]
+        }
       }
 
       # Almost all targets build with //build/config/compiler:thin_archive which
@@ -756,7 +765,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link -o $libname -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+            inputs = rustc_wrapper_inputs
+        }
       }
 
       tool("rust_rlib") {
@@ -789,7 +800,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link,metadata=$rmetaname -o $rlibname -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+          inputs = rustc_wrapper_inputs
+        }
       }
 
       tool("rust_bin") {
@@ -811,7 +824,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link -o $exename -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS {{ldflags}} ${extra_ldflags} RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+          inputs = rustc_wrapper_inputs
+        }
       }
 
       tool("rust_cdylib") {
@@ -834,7 +849,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link -o $dllname -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS {{ldflags}} ${extra_ldflags} RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+          inputs = rustc_wrapper_inputs
+        }
       }
 
       tool("rust_dylib") {
@@ -859,7 +876,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link,metadata=$rmetaname -o $dllname -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS {{ldflags}} ${extra_ldflags} RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+          inputs = rustc_wrapper_inputs
+        }
       }
 
       tool("rust_macro") {
@@ -882,7 +901,9 @@ template("single_gcc_toolchain") {
             "$rustc_common_args {{rustdeps}} {{externs}} SOURCES {{sources}}"
         command = "$rustc_wrapper --depfile=$depfile --emit=dep-info=$depfile,link -o $dllname -- -Clinker=\"${invoker.cxx}\" {{source}} LDFLAGS {{ldflags}} ${extra_ldflags} RUSTENV {{rustenv}}"
         rust_sysroot = rust_sysroot_relative
-        inputs = rustc_wrapper_inputs
+        if (!is_bsd) {
+          inputs = rustc_wrapper_inputs
+        }
       }
     }
 
@@ -1000,22 +1021,12 @@ template("clang_toolchain") {
 # actually just be doing a native compile.
 template("clang_toolchain") {
   gcc_toolchain(target_name) {
-    _path = "$clang_base_path/bin"
-    _is_path_absolute = get_path_info(_path, "abspath") == _path
-
-    # Preserve absolute paths for tools like distcc.
-    if (_is_path_absolute && filter_include([ _path ], [ "//*" ]) == []) {
-      prefix = _path
-    } else {
-      prefix = rebase_path(_path, root_build_dir)
-    }
-
-    cc = "${prefix}/clang"
-    cxx = "${prefix}/clang++"
+    cc = "%%LLVM_PREFIX%%/bin/clang"
+    cxx = "%%LLVM_PREFIX%%/bin/clang++"
     ld = cxx
-    readelf = "${prefix}/llvm-readelf"
-    ar = "${prefix}/llvm-ar"
-    nm = "${prefix}/llvm-nm"
+    readelf = "%%LLVM_PREFIX%%/bin/llvm-readelf"
+    ar = "%%LLVM_PREFIX%%/bin/llvm-ar"
+    nm = "%%LLVM_PREFIX%%/bin/llvm-nm"
 
     forward_variables_from(invoker, "*", [ "toolchain_args" ])