lld@19
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Description:
LLVM Project Linker
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  @llvmorg  |  formulae.brew.sh
Category: Developer tools
Tags: linker llvm compiler development build-system
Install: brew install lld@19
About:
Lld is a linker from the LLVM Project designed as a drop-in replacement for the GNU linker (ld) and gold linkers. It significantly reduces link times, especially for large C++ projects, by operating much faster than traditional linkers. It supports common linker scripts and command-line flags, making it easy to integrate into existing build systems.
Key Features:
  • High-speed linking performance
  • Drop-in compatibility with GNU ld
  • Supports ELF, COFF, Mach-O, and WebAssembly
  • Integrated with the LLVM toolchain
Use Cases:
  • Accelerating build times for large C++ applications
  • Linking code compiled with Clang
  • Cross-platform development requiring consistent linking behavior
Alternatives:
  • GNU ld – Standard linker, generally slower than Lld for large projects
  • gold – GNU's faster linker, often outperformed by Lld
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