Bug 1457524 followup - Unset RUSTDOC for no-compile environment and add it to mozconfigs.

--HG--
extra : rebase_source : 811e48c193f593332ace7ed0108693373dafecaf
extra : amend_source : 4bb21acd6d3def08917dc00c2264f1ddb1b1ede8

browser/config/mozconfigs/linux64/plain-opt

@@ -3,6 +3,7 @@ export LLVM_CONFIG="${TOOLTOOL_DIR}/clang/bin/llvm-config"
 
 CARGO="${TOOLTOOL_DIR}/rustc/bin/cargo"
 RUSTC="${TOOLTOOL_DIR}/rustc/bin/rustc"
+RUSTDOC="${TOOLTOOL_DIR}/rustc/bin/rustdoc"
 
 CC="${TOOLTOOL_DIR}/gcc/bin/gcc"
 CXX="${TOOLTOOL_DIR}/gcc/bin/g++"

browser/config/mozconfigs/win64/plain-opt

@@ -4,6 +4,7 @@ export LLVM_CONFIG="${TOOLTOOL_DIR}/clang/bin/llvm-config"
 
 RUSTC="${TOOLTOOL_DIR}/rustc/bin/rustc"
 CARGO="${TOOLTOOL_DIR}/rustc/bin/cargo"
+RUSTDOC="${TOOLTOOL_DIR}/rustc/bin/rustdoc"
 
 ac_add_options --target=x86_64-pc-mingw32
 ac_add_options --host=x86_64-pc-mingw32

build/mozconfig.no-compile

@@ -13,6 +13,7 @@ unset HOST_CC
 unset HOST_CXX
 unset RUSTC
 unset CARGO
+unset RUSTDOC
 unset MAKECAB
 unset TOOLCHAIN_PREFIX
 unset BINDGEN_CFLAGS