ForgeZero: musl Cross-Compilation and Objective-C Support

Sat, 06 Jun 2026 09:04:12 +0000

Recent changes to ForgeZero introduce two new build targets:

musl libc cross-compilation through the Zig toolchain
Objective-C compilation support on Linux

The goal is not to add another compiler frontend, but to keep a single command-line interface while selecting the appropriate backend automatically.

musl Targets

ForgeZero can now build statically linked musl binaries for supported architectures.

Example:

fz -cc main.c -musl=riscv64 -toolchain zig

Result:

main: ELF 64-bit LSB executable, UCB RISC-V, RVC, double-float ABI, version 1 (SYSV), statically linked, with debug_info, not stripped

The implementation uses the Zig toolchain as a cross compiler while exposing a consistent ForgeZero interface.

Typical use cases include:

static deployment
container images
embedded systems
cross-compilation without a dedicated sysroot
portable binaries

No changes are required to existing build scripts besides selecting the musl target.

Objective-C Detection

ForgeZero now recognizes Objective-C source files (.m) and automatically switches to the Clang frontend and Objective-C runtime linker.

Example:

fz -cc main.m

Verbose output:

Objective-C detected!
Bypassing Zig linker to use Clang with -lobjc

Running:
clang main.o -o main -lobjc -Wl,--build-id=none

Built: main

The language detection is automatic.

There is no separate Objective-C mode or dedicated command. Source type determines the compilation pipeline.

Unified Build Interface

The same interface can now be used for multiple languages:

fz -cc hello.c
fz -cc hello.m
fz -asm boot.asm

ForgeZero selects the compiler, linker and runtime based on the source file and requested target instead of requiring the user to manage toolchain details manually.

This behavior will be extended to additional languages and targets in future releases.

Repository

GitHub: https://github.com/forgezero-cli/forgezero

Author: https://github.com/alexvoste

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ForgeZero: musl Cross-Compilation and Objective-C Support

musl Targets

Objective-C Detection

Unified Build Interface

Repository