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mtgodot-poc/extension/third_party/CMakeLists.txt
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CMake

# extension/third_party — vendored native dependencies for the GDExtension.
#
# Phase 1 (macOS) used Homebrew for libsodium / libzstd / liblzo2. Those don't
# exist on the Android NDK or iOS SDK sysroots, so the mobile bring-up (BACKLOG
# F1/F2) needs them built from source as part of our own build. All three are
# pinned here and produce static libs that link into libmtgodot:
#
# sodium <- libsodium-cmake submodule (wraps jedisct1/libsodium)
# libzstd_static <- facebook/zstd submodule, its own build/cmake project
# minilzo <- vendored miniLZO source (LZO1X, ~4 files) — see NOTICE
#
# See docs/THIRD-PARTY.md for versions / licenses. liblzo2 (and thus miniLZO) is
# GPL: fine for this internal, non-published project — same footing as
# libgr2/src/oodle1.c — but must be swapped or re-licensed before any release.
# Everything here is archived into the SHARED libmtgodot, so it must be PIC.
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# --- libsodium ------------------------------------------------------------------
set(SODIUM_DISABLE_TESTS ON CACHE BOOL "" FORCE)
set(SODIUM_MINIMAL OFF CACHE BOOL "" FORCE)
add_subdirectory(libsodium-cmake EXCLUDE_FROM_ALL)
# The wrapper's target is `sodium`; give it a namespaced alias for consumers.
add_library(mt3p::sodium ALIAS sodium)
# --- libzstd ------------------------------------------------------------------
set(ZSTD_BUILD_PROGRAMS OFF CACHE BOOL "" FORCE)
set(ZSTD_BUILD_SHARED OFF CACHE BOOL "" FORCE)
set(ZSTD_BUILD_STATIC ON CACHE BOOL "" FORCE)
set(ZSTD_BUILD_TESTS OFF CACHE BOOL "" FORCE)
set(ZSTD_BUILD_CONTRIB OFF CACHE BOOL "" FORCE)
set(ZSTD_LEGACY_SUPPORT OFF CACHE BOOL "" FORCE)
set(ZSTD_MULTITHREAD_SUPPORT OFF CACHE BOOL "" FORCE)
add_subdirectory(zstd/build/cmake zstd-build EXCLUDE_FROM_ALL)
add_library(mt3p::zstd ALIAS libzstd_static)
# --- Crypto++ (MT_PROTOCOL=classic cipher) ----------------------------------
add_subdirectory(cryptopp EXCLUDE_FROM_ALL)
# --- miniLZO ------------------------------------------------------------------
# One translation unit, an amalgamation generated from the LZO sources. Its
# public API (<lzo/lzo1x.h> via the shim header) is a strict subset of full LZO.
add_library(minilzo STATIC minilzo/minilzo.c)
target_include_directories(minilzo PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/minilzo")
set_target_properties(minilzo PROPERTIES C_STANDARD 99)
add_library(mt3p::minilzo ALIAS minilzo)