Building XNU for OS X 10.9.5.

gistfile1.txt

# Install Xcode 5.0.2. Later versions will not work.

git clone https://github.com/apple-oss-distributions/xnu.git
cd xnu/
git checkout d2a0abf2ede8152c5a107fe51e032c1193d2015b
cd ..

git clone 'https://github.com/apple-oss-distributions/dtrace.git'
cd dtrace/
git checkout cdf0eec474eafb19dbb2c998320aaad28f755d0b
cd ..

git clone https://github.com/apple-oss-distributions/AvailabilityVersions.git
cd AvailabilityVersions/
git checkout 9e102063d8143f0c20fc2f71ac30af2289751fc2
cd ..

cd dtrace
xcodebuild install -target ctfconvert -target ctfdump -target ctfmerge ARCHS="x86_64" SRCROOT=$PWD OBJROOT=$PWD/obj SYMROOT=$PWD/sym DSTROOT=$PWD/dst
sudo ditto $PWD/dst/usr/local /usr/local
cd ..

cd AvailabilityVersions
mkdir -p dst
make install SRCROOT=$PWD DSTROOT=$PWD/dst
sudo ditto $PWD/dst/usr/local `xcrun -sdk / -show-sdk-path`/usr/local
cd ..

cd xnu
make ARCH_CONFIGS=X86_64 KERNEL_CONFIGS=RELEASE