Script to build LLVM+Clang for jailbroken iOS (ARM64)

llvm-clang6.0.0-build.sh

#LICENSE: retain the following license  
#BSD 3-Clause "New" or "Revised" License
#and this: https://github.com/leetal/ios-cmake/blob/master/LICENSE.md

#Tested on LLVM 6.0.0 and Clang 6.0.0
#using XCode 9.1, iOS11.1 SDK


#make build directory 
mkdir llvm-clang-ios
cd llvm-clang-ios

#download tarball : version is 6.0.0

#LLVM
wget "http://releases.llvm.org/6.0.0/llvm-6.0.0.src.tar.xz"

#Clang
wget "http://releases.llvm.org/6.0.0/cfe-6.0.0.src.tar.xz"

#unpack xz files
xz -d "llvm-6.0.0.src.tar.xz"
xz -d "cfe-6.0.0.src.tar.xz"

	#unpack tar archives
tar zxf "llvm-6.0.0.src.tar"
tar zxf "cfe-6.0.0.src.tar"

#rename clang folder and move the folder into llvm/tools
mv "cfe-6.0.0.src" "clang"
mv "clang" "llvm-6.0.0.src/tools/clang" 

git clone "https://github.com/leetal/ios-cmake.git"
cp "ios-cmake/ios.toolchain.cmake" .

cd llvm-6.0.0.src
mkdir build
cd build

cmake ../ \
	-DCMAKE_BUILD_TYPE=Release \
	-DLLVM_OPTIMIZED_TABLEGEN=True \
	-DLLVM_ENABLE_PIC=False \
	-DCMAKE_TOOLCHAIN_FILE=../../ios.toolchain.cmake \
	-DIOS_PLATFORM=OS \
	-DENABLE_ARC=FALSE \
	-DENABLE_BITCODE=FALSE \
	-DIOS_ARCH=arm64 \
	-DCMAKE_INSTALL_PREFIX=/iosdev/llvm-clang6.0.0 \
	-DPYTHON_EXECUTABLE=$(which python) \
	-DCMAKE_CROSSCOMPILING=True \
	-DLLVM_DEFAULT_TARGET_TRIPLE=arm-apple-darwin \
	-DLLVM_TARGET_ARCH=ARM
	
unset CC CXX CFLAGS CXXFLAGS LD LDFLAGS CPP CXXCPP RANLIB AR LIBTOOL

#make -j8
#make install