diff -up v8-6.7.17/build/toolchain/linux/BUILD.gn.notcross v8-6.7.17/build/toolchain/linux/BUILD.gn
--- v8-6.7.17/build/toolchain/linux/BUILD.gn.notcross	2018-03-06 14:20:53.000000000 -0500
+++ v8-6.7.17/build/toolchain/linux/BUILD.gn	2018-03-06 14:37:22.505146107 -0500
@@ -6,7 +6,6 @@ import("//build/config/sysroot.gni")
 import("//build/toolchain/gcc_toolchain.gni")
 
 clang_toolchain("clang_arm") {
-  toolprefix = "arm-linux-gnueabihf-"
   toolchain_args = {
     current_cpu = "arm"
     current_os = "linux"
@@ -14,7 +13,6 @@ clang_toolchain("clang_arm") {
 }
 
 clang_toolchain("clang_arm64") {
-  toolprefix = "aarch64-linux-gnu-"
   toolchain_args = {
     current_cpu = "arm64"
     current_os = "linux"
@@ -22,15 +20,13 @@ clang_toolchain("clang_arm64") {
 }
 
 gcc_toolchain("arm64") {
-  toolprefix = "aarch64-linux-gnu-"
-
-  cc = "${toolprefix}gcc"
-  cxx = "${toolprefix}g++"
+  cc = "gcc"
+  cxx = "g++"
 
-  ar = "${toolprefix}ar"
+  ar = "ar"
   ld = cxx
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
+  readelf = "readelf"
+  nm = "nm"
 
   toolchain_args = {
     current_cpu = "arm64"
@@ -40,15 +36,13 @@ gcc_toolchain("arm64") {
 }
 
 gcc_toolchain("arm") {
-  toolprefix = "arm-linux-gnueabihf-"
-
-  cc = "${toolprefix}gcc"
-  cxx = "${toolprefix}g++"
+  cc = "gcc"
+  cxx = "g++"
 
-  ar = "${toolprefix}ar"
+  ar = "ar"
   ld = cxx
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
+  readelf = "readelf"
+  nm = "nm"
 
   toolchain_args = {
     current_cpu = "arm"
@@ -178,14 +172,12 @@ clang_toolchain("clang_mips64el") {
 }
 
 gcc_toolchain("mipsel") {
-  toolprefix = "mipsel-linux-gnu-"
-
-  cc = "${toolprefix}gcc"
-  cxx = " ${toolprefix}g++"
-  ar = "${toolprefix}ar"
+  cc = "gcc"
+  cxx = "g++"
+  ar = "ar"
   ld = cxx
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
+  readelf = "readelf"
+  nm = "nm"
 
   toolchain_args = {
     cc_wrapper = ""
@@ -197,14 +189,12 @@ gcc_toolchain("mipsel") {
 }
 
 gcc_toolchain("mips64el") {
-  toolprefix = "mips64el-linux-gnuabi64-"
-
-  cc = "${toolprefix}gcc"
-  cxx = "${toolprefix}g++"
-  ar = "${toolprefix}ar"
+  cc = "gcc"
+  cxx = "g++"
+  ar = "ar"
   ld = cxx
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
+  readelf = "readelf"
+  nm = "nm"
 
   toolchain_args = {
     cc_wrapper = ""
@@ -248,14 +238,12 @@ gcc_toolchain("ppc64") {
 }
 
 gcc_toolchain("mips") {
-  toolprefix = "mips-linux-gnu-"
-
-  cc = "${toolprefix}gcc"
-  cxx = "${toolprefix}g++"
+  cc = "gcc"
+  cxx = "g++"
 
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
-  ar = "${toolprefix}ar"
+  readelf = "readelf"
+  nm = "nm"
+  ar = "ar"
   ld = cxx
 
   toolchain_args = {
@@ -266,14 +254,12 @@ gcc_toolchain("mips") {
 }
 
 gcc_toolchain("mips64") {
-  toolprefix = "mips64-linux-gnuabi64-"
-
-  cc = "${toolprefix}gcc"
-  cxx = "${toolprefix}g++"
+  cc = "gcc"
+  cxx = "g++"
 
-  readelf = "${toolprefix}readelf"
-  nm = "${toolprefix}nm"
-  ar = "${toolprefix}ar"
+  readelf = "readelf"
+  nm = "nm"
+  ar = "ar"
   ld = cxx
 
   toolchain_args = {