diff --git a/ports/geckolib/tools/build_custom_clang.sh b/ports/geckolib/tools/build_custom_clang.sh
new file mode 100755
index 00000000000..40b3c86f5aa
--- /dev/null
+++ b/ports/geckolib/tools/build_custom_clang.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Run in the tools directory.
+cd `dirname $0`
+
+# Don't run twice.
+if [ -d llvm ]; then
+  echo "llvm directory already exists."
+  exit 1
+fi
+
+# Download and build a custom llvm
+git clone https://github.com/llvm-mirror/llvm
+cd llvm
+git checkout release_37
+cd tools
+git clone https://github.com/llvm-mirror/clang
+cd clang
+git remote add mwu https://github.com/michaelwu/clang
+git fetch mwu
+git checkout release_37_smhacks
+cd ../.. # llvm root dir
+mkdir build
+cd build
+../configure --enable-optimized
+make
diff --git a/ports/geckolib/tools/regen_bindings.sh b/ports/geckolib/tools/regen_bindings.sh
new file mode 100755
index 00000000000..4795910c70d
--- /dev/null
+++ b/ports/geckolib/tools/regen_bindings.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Run in the tools directory.
+cd `dirname $0`
+
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 /path/to/objdir/"
+  exit 1
+fi
+
+# Check for rust-bindgen
+if [ ! -d rust-bindgen ]; then
+  echo "rust-bindgen not found. Run setup_bindgen.sh first."
+  exit 1
+fi
+
+export RUST_BACKTRACE=1
+export LIBCLANG_PATH=`pwd`/llvm/build/Release+Asserts/lib
+export DYLD_LIBRARY_PATH=`pwd`/llvm/build/Release+Asserts/lib
+export DIST_INCLUDE=$1/dist/include
+
+# Check for the include directory.
+if [ ! -d $DIST_INCLUDE ]; then
+  echo "$DIST_INCLUDE: directory not found"
+  exit 1
+fi
+
+# Uncomment the following line to run rust-bindgen in a debugger on mac.
+# The absolute path is required to allow launching lldb with an untrusted
+# library in DYLD_LIBRARY_PATH.
+#
+# /Applications/Xcode.app/Contents/Developer/usr/bin/lldb --
+./rust-bindgen/target/debug/bindgen -I$DIST_INCLUDE -o ../bindings.rs $DIST_INCLUDE/mozilla/ServoBindings.h
diff --git a/ports/geckolib/tools/regen_style_structs.sh b/ports/geckolib/tools/regen_style_structs.sh
new file mode 100755
index 00000000000..b8d84651ebb
--- /dev/null
+++ b/ports/geckolib/tools/regen_style_structs.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Run in the tools directory.
+cd `dirname $0`
+
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 /path/to/objdir/"
+  exit 1
+fi
+
+# Check for rust-bindgen
+if [ ! -d rust-bindgen ]; then
+  echo "rust-bindgen not found. Run setup_bindgen.sh first."
+  exit 1
+fi
+
+# Need to find a way to avoid hardcoding these
+STD_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include
+STDXX_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
+if [ ! -d $STD_LIB_PATH ] || [ ! -d $STDXX_LIB_PATH ]; then
+  echo "Please update the above environmental variables to point to your standard library."
+  exit 1
+fi
+
+export RUST_BACKTRACE=1
+export LIBCLANG_PATH=`pwd`/llvm/build/Release+Asserts/lib
+export DYLD_LIBRARY_PATH=`pwd`/llvm/build/Release+Asserts/lib
+export DIST_INCLUDE=$1/dist/include
+
+# Check for the include directory.
+if [ ! -d $DIST_INCLUDE ]; then
+  echo "$DIST_INCLUDE: directory not found"
+  exit 1
+fi
+
+# Uncomment the following line to run rust-bindgen in a debugger on mac.
+# The absolute path is required to allow launching lldb with an untrusted
+# library in DYLD_LIBRARY_PATH.
+#
+# /Applications/Xcode.app/Contents/Developer/usr/bin/lldb --
+./rust-bindgen/target/debug/bindgen -x c++ -std=gnu++0x -ignore-functions -allow-unknown-types -isystem $STDXX_LIB_PATH -isystem $STD_LIB_PATH -I$DIST_INCLUDE -I$DIST_INCLUDE/nspr -DDEBUG=1 -DTRACING=1 -DOS_POSIX=1 -DOS_MACOSX=1 -DMOZILLA_INTERNAL_API -DIMPL_LIBXUL  -include $1/mozilla-config.h -o ../gecko_style_structs.rs $DIST_INCLUDE/nsStyleStruct.h
diff --git a/ports/geckolib/tools/setup_bindgen.sh b/ports/geckolib/tools/setup_bindgen.sh
new file mode 100755
index 00000000000..d1fae60f6ae
--- /dev/null
+++ b/ports/geckolib/tools/setup_bindgen.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Run in the tools directory.
+cd `dirname $0`
+
+# Make sure we have a custom clang set up.
+if [ ! -d llvm ]; then
+  echo "Custom LLVM/Clang not found. Run build_custom_clang.sh first."
+  exit 1
+fi
+
+# Don't run twice.
+if [ -d rust-bindgen ]; then
+  echo "rust-bindgen directory already exists."
+  exit 1
+fi
+
+# Check for multirust
+if [ ! -x "$(command -v multirust)" ]; then
+    echo 'multirust must be installed.'
+    exit 1
+fi
+
+# Setup and build bindgen.
+export LIBCLANG_PATH=`pwd`/llvm/build/Release+Asserts/lib
+git clone https://github.com/bholley/rust-bindgen.git
+cd rust-bindgen
+git checkout sm-hacks
+multirust override nightly
+cargo build