diff -rauN a/mozconfig b/mozconfig
--- a/mozconfig	2021-02-07 09:37:39.668372717 +0100
+++ b/mozconfig	2021-02-07 09:38:10.241622176 +0100
@@ -5,14 +5,15 @@
 ac_add_options --enable-release
 ac_add_options --enable-hardening
 ac_add_options --enable-optimize
-ac_add_options --enable-rust-simd
-ac_add_options --enable-linker=lld
+ac_add_options --disable-rust-simd
+ac_add_options --enable-linker=bfd
 ac_add_options --disable-elf-hack
-export CC='clang --target=x86_64-unknown-linux-gnu'
-export CXX='clang++ --target=x86_64-unknown-linux-gnu'
-export AR=llvm-ar
-export NM=llvm-nm
-export RANLIB=llvm-ranlib
+ac_add_options --disable-lto
+export CC=gcc
+export CXX=g++
+export AR=gcc-ar
+export NM=gcc-nm
+export RANLIB=gcc-ranlib
 
 # Branding
 ac_add_options --enable-official-branding