Dependencies

Runtime Dependencies

mkhpack has no runtime dependencies beyond the C standard library. The shared library (libmkhpack.so) is self-contained.

Build Dependencies

Name	Purpose
GCC	C compiler (path configured in Makefile.inc)
GNU Make	Build orchestration
Ruby	Code generation — runs huffman_codes.rb to produce src/huffman_codes.inc
ar	Creates the static library (libmkhpack.a)

Packaging Dependencies

Debian

Name	Version	Purpose
debhelper-compat	= 13	Debian build helper framework
ruby	any	Huffman table generation during build
build-essential	any	GCC, make, and related tools (meta-package)

RPM

Name	Purpose
gcc	C compiler
make	Build orchestration
ruby	Huffman table generation during build

CI/CD Dependencies

The release workflow (release.yml) installs these packages on ubuntu-latest:

• build-essential
• debhelper
• ruby

The GitHub Pages workflow (update-pages.yml) additionally requires:

• Ruby 3.3 (via ruby/setup-ruby@v1)
• Bundler and the project’s gh-pages branch Gemfile

Test Dependencies

Tests are written using a custom harness (test/common.{c,h}) with no external test framework.

Benchmark Dependencies

Benchmarks use one of two timing harnesses, both included in the repository:

• benchmark-custom.c — uses the x86 RDTSC instruction (default)
• benchmark-gettime.c — uses POSIX clock_gettime

No external benchmark libraries are required.

Development Tool Dependencies

Name	Purpose
pkg-config	Optional; consumers use it to discover compiler/linker flags
sed	Used by Makefile to generate lib/mkhpack.pc from template
ln	Used by Makefile to create shared library symlinks