Cctools 65 ((top))

If you are building a toolchain (e.g., for Theos), cctools provides the linker ( ld ). You would typically invoke this via a compiler wrapper (like clang ), but manually it looks like:

The Apple cross-compilation toolchain just got an upgrade. 🛠️ Say hello to cctools 65. Here is why developers should care: 🧵👇 cctools 65

Have a strange linking or code-signing bug after the update? Check your otool -l output—the answer is often hidden in a load command you never knew existed. If you are building a toolchain (e

For the uninitiated, cctools is the open-source core of Apple’s developer toolchain. Originally forked from the GNU binutils, it has evolved into a Mach-O-specific suite. Key components include: Here is why developers should care: 🧵👇 Have

git clone https://github.com/apple-oss-distributions/cctools cd cctools git checkout cctools-65

A detailed multi-part write-up on Customizing CC65 covers low-level implementation, such as writing custom read() and write() subroutines for 8-bit hardware like the Project:65 computer .