joeylib2/LICENSES.md

Third-Party Licenses

This file inventories every third-party component JoeyLib depends on, either at runtime (linked into the produced binaries) or at build / test time. Components are grouped by role; within each group entries list the platforms that consume the component, the upstream URL, and the license.

When upstream license terms change, update the corresponding row here.

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Runtime libraries (linked into joeylib output binaries)

These ship as part of, or are linked into, an executable built by JoeyLib. License compatibility for these matters most.

libxmp-lite

• Used on: DOS, Atari ST
• URL: https://github.com/libxmp/libxmp
• License: MIT
• Role: ProTracker / Amiga MOD replayer + SMIX SFX overlay. Linked into AUDIO binaries on the chunky-display platforms.
• Vendored at: toolchains/audio/libxmp-lite/

NinjaTrackerPlus (NTP)

• Used on: Apple IIgs
• URL: https://www.ninjaforce.com/html/products_software.html (downloads from https://www.ninjaforce.com/downloads/)
• License: No explicit license in the source distribution; written by Jesse Blue (NinjaForce). Treated here as free for use; consult upstream before commercial redistribution.
• Role: Apple IIgs Ensoniq DOC .NTP module replayer + SFX streamer. Merlin32-assembled and linked into the AUDIO binary as bytes (see make/iigs.mk $(NTP_HEADER) rule).
• Vendored at: toolchains/iigs/ntp/ninjatrackerplus.s (source); build product baked into examples/audio AUDIO binary.

PTPlayer

• Used on: Amiga
• URL: http://aminet.net/mus/play/ptplayer.lha (author Frank Wille, http://aminet.net/package/mus/play/ptplayer)
• License: Public Domain
• Role: ProTracker MOD replayer + mt_playfx SFX channel for the Paula audio HAL.
• Vendored at: toolchains/amiga/ptplayer/

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Build-time toolchains (NOT linked, used to produce binaries)

These run on the developer's machine to compile / assemble / link JoeyLib for each target. They are not redistributed inside the produced game binaries.

llvm-mos (clang / llvm-mc / link816 w65816 toolchain)

• Used on: Apple IIgs
• URL: https://github.com/llvm-mos/llvm-mos
• License: Apache License 2.0 with LLVM Exceptions (the upstream LLVM license).
• Role: clang C compiler targeting the 65816, plus llvm-mc for assembling hand-written .s files and link816 for producing OMF S16 executables. Driven by toolchains/iigs/clang-build.sh; the toolchain root is located via the LLVM816_ROOT environment variable.
• Vendored at: toolchains/iigs/llvm-mos/

Merlin32

• Used on: Apple IIgs
• URL: https://brutaldeluxe.fr/products/crossdevtools/merlin/
• License: Freely distributed by Brutal Deluxe Software (Olivier Zardini, Antoine Vignau). Source published with no formal open-source license header — Brutal Deluxe's "open source philosophy" but copyright is retained. Treat as "free to use, redistribute as part of a build chain; ask before forking commercially."
• Role: 65816 cross-assembler. Builds NinjaTrackerPlus.
• Vendored at: toolchains/iigs/merlin32/

Bebbo m68k-amigaos GCC toolchain

• Used on: Amiga
• URL: https://github.com/AmigaPorts/m68k-amigaos-gcc
• License: GNU GPL v2 (gcc, binutils, libnix); per-component copyrights listed in upstream README.md. Includes assets covered by individual permissive notices (Roadshow, fd2pragma public domain, ira freeware, etc.).
• Role: AmigaOS HUNK-format gcc + binutils + libnix used to compile the Amiga port and link against PTPlayer.
• Vendored at: toolchains/amiga/gcc/

vasm

• Used on: Amiga (PTPlayer only)
• URL: http://sun.hasenbraten.de/vasm/
• License: vasm custom license — © Volker Barthelmann; free for non-commercial use, plus an explicit commercial-use exception for M68k + AmigaOS targets (see vasm distribution README). Other commercial use requires written permission. JoeyLib's only remaining vasm invocation is ptplayer.asm on the Amiga path, which falls under the M68k+AmigaOS exception.
• Role: Assemble third-party ptplayer.asm (Frank Wille's Devpac/vasm-syntax source). Our own .s files are GAS syntax and go through m68k-amigaos-as (binutils, GPL) instead.
• Vendored at: toolchains/amiga/vasm/

m68k-atari-mint GCC toolchain (Thorsten Otto builds)

• Used on: Atari ST
• URL: https://tho-otto.de/download/mint/ (gcc upstream: GNU; mintlib: https://github.com/freemint/mintlib)
• License: GNU GPL v2 (gcc, binutils); mintlib is a mix of GPL and permissive (per-file headers).
• Role: GEMDOS-native gcc + binutils + mintlib used to compile the Atari ST port.
• Vendored at: toolchains/atarist/gcc/

DJGPP (build-djgpp packaging)

• Used on: DOS
• URL: https://github.com/andrewwutw/build-djgpp (DJGPP upstream: http://www.delorie.com/djgpp/)
• License: Build script GNU GPL v3; bundled gcc/binutils GNU GPL v2; DJGPP runtime libraries (libc) are mostly public-domain or permissive — see DJGPP readme.1st.
• Role: 32-bit protected-mode gcc cross-compiler producing COFF binaries that run on 386+ DOS via DPMI.
• Vendored at: toolchains/dos/djgpp/

CWSDPMI

• Used on: DOS
• URL: https://sandmann.dotster.com/cwsdpmi/
• License: Custom redistribution terms (Charles W. Sandmann, © 1995–2010). Binary may be redistributed without source provided the executables are unmodified and end users are notified of source availability — full terms in cwsdpmi.doc. Source is GPL-licensed if distributed.
• Role: Stubbed-into-binary DPMI server for DJGPP-compiled DOS executables (via embed-dpmi.sh).
• Vendored at: toolchains/dos/cwsdpmi/

NASM

• Used on: DOS
• URL: https://www.nasm.us/
• License: 2-clause BSD
• Role: Assembler for x86 inline-asm support files in the DOS port.
• Vendored at: toolchains/dos/nasm/

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Test-time emulators (not shipped, not linked)

Used by scripts/run-*.sh to run the produced binaries on the developer's machine. Not part of any redistributed artifact.

GSplus (KEGS fork)

• Used on: Apple IIgs
• URL: https://github.com/digarok/gsplus
• License: GNU GPL v3
• Vendored at: toolchains/emulators/gsplus/

MAME

• Used on: Apple IIgs (apple2gs driver, optional)
• URL: https://www.mamedev.org/
• License: GNU GPL v2+ (GPL-2.0-or-later) plus a 3-clause BSD alternative for some components.

Hatari

• Used on: Atari ST
• URL: https://www.hatari-emu.org/
• License: GNU GPL v2

DOSBox

• Used on: DOS
• URL: https://www.dosbox.com/
• License: GNU GPL v2

FS-UAE

• Used on: Amiga
• URL: https://fs-uae.net/
• License: GNU GPL v2 (UAE codebase)

EmuTOS

• Used on: Atari ST (TOS replacement for Hatari)
• URL: https://emutos.sourceforge.io/
• License: GNU GPL v2
• Vendored at: toolchains/emulators/support/emutos-512k.img

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System ROMs and disk images (used for testing only)

These are not part of JoeyLib distribution and not redistributed. They are downloaded to the developer's local cache by toolchains/install.sh for emulator-side testing only. License terms prohibit redistribution; please consult the source if you intend to ship anything that depends on them.

Apple IIgs ROM 03

• Used on: Apple IIgs (GSplus, MAME)
• URL: Various preservation archives, e.g. https://mirrors.apple2.org.za/ftp.apple.asimov.net/emulators/rom_images/
• License: Apple Inc. proprietary firmware. Provided here for developer testing only; do not redistribute as part of any derivative project.

Apple IIgs System 6.0.4

• Used on: Apple IIgs (GSplus boot disk)
• URL: https://mirrors.apple2.org.za/ftp.apple.asimov.net/images/gs/os/gsos/
• License: Apple Inc. proprietary OS. Same caveat as the ROM.

Apple IIgs apple2gs MAME ROM set

• Used on: Apple IIgs (MAME testing path)
• URL: Same preservation archives as above.
• License: Apple Inc. proprietary firmware. Required for MAME's apple2gs driver but not redistributed.

Amiga Kickstart ROM (optional)

• Used on: Amiga (FS-UAE, optional — falls back to AROS)
• URL: Cloanto / Amiga Forever (commercial), or original media.
• License: Cloanto / Amiga Corp. proprietary. JoeyLib does not bundle Kickstart; users supply their own ROM at toolchains/emulators/support/kickstart.rom if they have one.

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Maintenance

When adding a new third-party dependency:

1. Append a row in the appropriate section above.
2. Record platform(s), upstream URL, license name, and a one-line role description.
3. If the dependency is vendored, list the path under toolchains/.
4. If license terms restrict redistribution, call that out explicitly (as we do for Apple ROMs).