mach

mach command [options]

mach is the command-line driver for the Mach programming language, a statically typed, compiled systems language with manual memory management and no hidden control flow. A single self-contained binary handles the whole workflow: it compiles and links projects, runs tests, vendors dependencies, generates documentation, and cross-compiles to other targets.The compiler is self-hosted (written in Mach) and does not depend on LLVM. Build-related subcommands share a common configuration parser, so global flags such as --target, --profile, and --release apply consistently across building, running, testing, and documenting.

--release, -O0, -O1, -O2

Select the optimization level for the build.

Cross-compile for the given target.

Select a named build profile.

Choose the binary or library artifact to act on.

Write output to PATH.

Emit assembly or intermediate representation instead of (or alongside) the normal output.

Add a library search path or link against a named library.

Increase or decrease the amount of output.

build

Compile the project to object files and, for a binary target, a linked executable.

Build the project, then execute the produced binary.

Build the test binary and run the collected tests.

Manage git-backed dependencies (clone, lock, vendor).

Scaffold a new project.

Generate Markdown reference documentation from source doc-comments.

Print the compiler version, build host, and registered target capabilities.

Display usage information for a command.

Mach is a young language under active development; the standard library is intentionally minimal ("batteries not included") and the syntax and tooling may change between releases. Memory is managed manually with explicit allocator passing.

mach ships as part of the Mach language project, which provides a self-hosted compiler with no LLVM dependency. It is installed as a single binary, typically via the install script at machlang.org.

zig(1), rustc(1), cargo(1), clang(1), tcc(1)

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