LLVM/Clang 3.4.2 for PowerPC G5 (Mac OS X Leopard)

Pre-built LLVM and Clang binaries for PowerPC G5 Macs running Mac OS X 10.5 Leopard.

Quick Install

# Download and extract
curl -LO https://github.com/Scottcjn/llvm-3.4.2-ppc-leopard/releases/download/v3.4.2/llvm-3.4.2-ppc-leopard.tar.gz
sudo tar xzf llvm-3.4.2-ppc-leopard.tar.gz -C /usr/local

# Add to PATH
export PATH=/usr/local/bin:$PATH

System Requirements

• Mac OS X 10.5 Leopard (Darwin 9.x)
• PowerPC G5 processor
• GCC 7.5.0 for C++ standard library headers (optional)

Included Binaries

Binary	Description
clang / clang++	C/C++ compiler
llc	LLVM static compiler
lli	LLVM interpreter
llvm-ar	Archive tool
llvm-as / llvm-dis	Assembler/Disassembler
opt	Optimizer
clang-format	Code formatter

Verified Working

Feature	Status
C compilation	✅ Works
AltiVec/VMX	✅ Works (-maltivec)
C++ core (templates, classes)	✅ Works
C++ stdlib (iostream, vector)	⚠️ Needs GCC 7 headers

Usage Examples

C Program

clang -O2 -o hello hello.c

AltiVec Vectorization

clang -maltivec -O3 -o vectorized simd_code.c

C++ with GCC 7 Standard Library

clang++ -std=c++11 \
  -I/usr/local/gcc-7.5.0/include/c++/7.5.0 \
  -I/usr/local/gcc-7.5.0/include/c++/7.5.0/powerpc-apple-darwin8.11.0 \
  -L/usr/local/gcc-7.5.0/lib \
  -o program program.cpp

Build Info

• LLVM Version: 3.4.2 (tags/RELEASE_34/dot2-final)
• Target: powerpc-apple-darwin9.8.0
• Built with: GCC 4.0.1 (Apple)
• Build date: December 2025

Also Available

• GCC 7.5.0 for PPC Leopard (via Tigerbrew)
• GCC 10.5.0 for PPC Leopard (custom build)

License

LLVM is distributed under the University of Illinois/NCSA Open Source License. See LICENSE.TXT in the LLVM source for details.

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