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d219b299f4
The submodule replaces FetchContent and the unpinned forge fallback; LIBAVR_ROOT stays as the tandem-development override, the presets take the toolchain file from the submodule, and the Studio project's include path anchors there — correct by construction. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
26 lines
882 B
CMake
26 lines
882 B
CMake
cmake_minimum_required(VERSION 3.28)
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project(ds3231 LANGUAGES CXX)
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# libavr rides as the pinned submodule; LIBAVR_ROOT (cache or environment)
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# overrides it for tandem development against a working tree. The toolchain
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# file comes from the submodule via CMakePresets.json either way.
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if(NOT LIBAVR_ROOT AND DEFINED ENV{LIBAVR_ROOT})
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set(LIBAVR_ROOT $ENV{LIBAVR_ROOT})
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endif()
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if(NOT LIBAVR_ROOT)
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set(LIBAVR_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/libavr)
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endif()
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if(NOT EXISTS ${LIBAVR_ROOT}/CMakeLists.txt)
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message(FATAL_ERROR "libavr not found at ${LIBAVR_ROOT} — run: git submodule update --init libavr")
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endif()
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add_subdirectory(${LIBAVR_ROOT} libavr-build)
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add_library(ds3231 INTERFACE)
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target_include_directories(ds3231 INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)
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target_link_libraries(ds3231 INTERFACE libavr)
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if(PROJECT_IS_TOP_LEVEL)
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add_subdirectory(example)
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endif()
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