If you’re maintaining an older iOS jailbreak tweak, compiling for legacy macOS versions, or working with a vintage Xcode setup, you’ve likely run into dependency errors demanding a specific version of cctools (the Apple fork of binutils). Version 6.5 is a common requirement for projects targeting OS X 10.9–10.11 or older ARM64 iOS binaries.
# 1. Unlink any existing cctools brew unlink cctools (These repositories change – check "homebrew-core" history for 2015-2016 commits) Easier: Install from a bottled version from MacPorts alternative (not recommended) Instead, compile from source (Method 2) Cctools 6-5 Download
# Clone the specific tag git clone https://github.com/apple-oss-distributions/cctools cd cctools git checkout cctools-6.5 brew install automake autoconf libtool Configure & compile (for x86_64 legacy target) ./configure --prefix=/usr/local/cctools-6.5 --target=x86_64-apple-darwin --disable-ld64 make make install If you’re maintaining an older iOS jailbreak tweak,