diff --git a/CMakeLists.txt b/CMakeLists.txt
index 97995484..139f0ec8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,15 +57,11 @@ add_executable(cfg_to_bc
 )
 
 llvm_map_components_to_libnames(llvm_libs
-    x86desc
-    x86info
-    x86utils
     irreader
     bitreader
     bitwriter
     transformutils
     scalaropts
-    ipo
 )
 
 target_link_libraries(cfg_to_bc
diff --git a/scripts/bootstrap_osx.sh b/scripts/bootstrap_osx.sh
new file mode 100755
index 00000000..76df02f8
--- /dev/null
+++ b/scripts/bootstrap_osx.sh
@@ -0,0 +1,135 @@
+#!/usr/bin/env bash
+# Copyright 2015 Peter Goodman (peter@trailofbits.com), all rights reserved.
+
+LLVM_VERSION=3.7.0
+PIN_VERSION=2.14-71313-clang.5.1-mac
+
+PIN_URL=http://software.intel.com/sites/landingpage/pintool/downloads/pin-${PIN_VERSION}.tar.gz
+LLVM_URL=http://llvm.org/releases/${LLVM_VERSION}/clang+llvm-${LLVM_VERSION}-x86_64-apple-darwin.tar.xz
+
+# Directory in which the script dir resides (i.e. McSema root dir).
+DIR=$(dirname $( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd ))
+
+RED=`tput setaf 1`
+GREEN=`tput setaf 2`
+YELLOW=`tput setaf 3`
+RESET=`tput sgr0`
+
+
+function download_and_install_llvm()
+{
+	echo "${YELLOW}Downloading LLVM and clang ${LLVM_VERSION}.${RESET}"
+
+	# Create third_party directory if it doesn't exist
+	mkdir -p $DIR/third_party
+	pushd $DIR/third_party
+
+	# Download a pre-built clang+llvm to it. OS X doesn't have wget by default. :(
+	curl -O ${LLVM_URL}
+
+	# Extract it to the path expected by compile_semantics.sh
+	mkdir -p $DIR/third_party/llvm/build
+	tar zxf clang+llvm-${LLVM_VERSION}-x86_64-apple-darwin.tar.xz -C llvm/build/ --strip-components=1
+
+	popd
+}
+
+function download_and_install_glog()
+{
+	echo "${YELLOW}Downloading and installing glog.${RESET}"
+
+	pushd $DIR/third_party
+
+	#git clone https://github.com/google/glog.git -t v0.3.4
+	curl -L -O https://github.com/google/glog/archive/v0.3.4.tar.gz
+
+	mkdir -p $DIR/third_party/glog
+	tar zxf v0.3.4.tar.gz -C glog/ --strip-components=1
+
+	popd
+
+	pushd $DIR/third_party/glog
+	./configure --prefix=/usr/local
+	make
+	make install
+	popd
+
+}
+
+function download_and_extract_pin()
+{
+	echo "${YELLOW}Downloading and installing pin.${RESET}"
+
+	pushd $DIR/third_party
+
+	curl -L -O ${PIN_URL}
+
+	mkdir -p $DIR/third_party/pin
+	tar zxf pin-${PIN_VERSION}.tar.gz -C pin/ --strip-components=1
+
+	popd
+}
+
+# Fetch all dependencies.
+echo "${GREEN}Checking dependencies.${RESET}"
+
+# Check for llvm ${LLVM_VERSION}
+if [[ -e $DIR/third_party/llvm/build/bin/clang++ ]]; then
+	echo "${GREEN}LLVM and clang FOUND!${RESET}"
+else
+	download_and_install_llvm
+fi;
+
+if [[ -e /usr/local/include/glog ]]; then
+	echo "${GREEN}glog FOUND!${RESET}"
+else
+	download_and_install_glog
+fi;
+
+
+if [[ -e $DIR/third_party/pin/pin ]]; then
+	echo "${GREEN}pin FOUND!${RESET}"
+else
+	download_and_extract_pin
+fi;
+
+# Create the generated files directories.
+echo "${GREEN}Creating aut-generated files.${RESET}"
+cd $DIR
+mkdir -p $DIR/generated
+mkdir -p $DIR/generated/Arch
+mkdir -p $DIR/generated/CFG
+
+
+# Generate 32- and 64-bit x86 machine state modules for importing by
+# `cfg_to_bc`.
+echo "${YELLOW}Generating architecture-specific state files.${RESET}"
+$DIR/scripts/compile_semantics.sh
+
+
+# Generate the protocol buffer file for the CFG definition. The lifter will
+# read in CFG protobuf files and output LLVM bitcode files.
+echo "${YELLOW}Generating protocol buffers.${RESET}"
+cd $DIR/generated/CFG
+cp $DIR/mcsema/CFG/CFG.proto $DIR/generated/CFG
+protoc --cpp_out=. CFG.proto
+protoc --python_out=. CFG.proto
+
+
+# Build McSema. McSema will be built with the above version of Clang.
+echo "${GREEN}Compiling McSema.${RESET}"
+cd $DIR
+mkdir -p $DIR/build
+cd $DIR/build
+cmake -G "Unix Makefiles" -DMCSEMA_DIR=$DIR -DCMAKE_PREFIX_PATH=$DIR/third_party/llvm/build/share/llvm ..
+make all
+
+
+# Find IDA.
+
+#echo "${GREEN}Finding IDA.${RESET}"
+#IDA=`locate idal64 | head -n 1`
+#if [ ! -e $IDA ] ; then
+#    echo "${RED}Error: Could not find IDA."
+#fi
+