From 5b4d295ad61f32a8c5cb57c82ff35bd31d85e13c Mon Sep 17 00:00:00 2001 From: Andrew Udvare Date: Tue, 23 Jun 2026 19:01:34 -0400 Subject: [PATCH 03/23] CMake: add USE_SYSTEM_* de-vendoring infrastructure Adds a central block that reads USE_SYSTEM_ from -D or the environment, sets the XENIA_USE_SYSTEM_ preprocessor define, and exposes a cache variable each third_party block checks to link the system library instead of the bundled copy. Co-authored-by: Claude --- CMakeLists.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 30febc4b7..b5a7b7dbf 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -37,6 +37,27 @@ message(STATUS "Target architecture: XE_TARGET_AARCH64=${XE_TARGET_AARCH64} XE_T option(XENIA_BUILD_TESTS "Build test suites" OFF) option(XENIA_BUILD_MISC "Build misc subprojects (trace viewers, shader compiler, vfs-dump, demos)" OFF) +# ============================================================================== +# System library options (distro / Gentoo de-vendoring) +# +# Each USE_SYSTEM_ may be set with -DUSE_SYSTEM_=ON. When enabled, the +# matching third_party/CMakeLists.txt block links the system library instead of +# building the bundled copy, and the XENIA_USE_SYSTEM_ preprocessor define +# selects the system headers in the src/xenia/base/*_include.h wrappers. +# ============================================================================== +set(XE_SYSTEM_LIBS + XXHASH FMT ZSTD ZARCHIVE GLSLANG SPIRV_TOOLS CAPSTONE SNAPPY PUGIXML ZLIB_NG + CXXOPTS XBYAK TOMLPLUSPLUS UTFCPP VULKAN_HEADERS VULKAN_MEMORY_ALLOCATOR + DISCORD_RPC IMGUI DATE +) +foreach(_lib ${XE_SYSTEM_LIBS}) + option(USE_SYSTEM_${_lib} "Use system ${_lib}" OFF) + if(USE_SYSTEM_${_lib}) + add_compile_definitions(XENIA_USE_SYSTEM_${_lib}) + message(STATUS "xenia: using system library ${_lib}") + endif() +endforeach() + # Toggle profiler add_compile_definitions(XE_OPTION_PROFILING=0) add_compile_definitions(XE_OPTION_PROFILING_UI=0) -- 2.54.0