portersky
f18e5e4adc
- Add asio dependency for async signal handling - Register SIGINT and SIGTERM to quit the application - Poll signals each frame for non-blocking shutdown - Q key and Ctrl+C both cleanly exit the program
71 lines
2.1 KiB
CMake
71 lines
2.1 KiB
CMake
# ==============================================================================
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# Find asio
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# ==============================================================================
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# This module fetches the asio networking library.
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#
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# Targets provided:
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# asio::asio - The asio library target
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#
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# Variables set:
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# asio_FOUND - TRUE if asio is available
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# asio_LIBRARIES - The asio library target (asio::asio)
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# asio_INCLUDE_DIR - Include directories for asio
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# asio_VERSION - Version of asio (if available)
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# ==============================================================================
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if (DEFINED _FINDASIO_INCLUDED)
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return()
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endif()
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set(_FINDASIO_INCLUDED TRUE)
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# Use the version passed to find_package(), or default to 1.32.0
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if (DEFINED asio_FIND_VERSION AND NOT asio_FIND_VERSION STREQUAL "")
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set(ASIO_VERSION "${asio_FIND_VERSION}")
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else()
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set(ASIO_VERSION "1.30.2")
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endif()
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message(STATUS "Fetching asio ${ASIO_VERSION}")
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include(FetchContent)
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find_program(GIT_EXECUTABLE git)
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if (GIT_EXECUTABLE)
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set(ASIO_FETCH_METHOD "GIT")
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else()
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message(FATAL_ERROR "Fetch method ZIP not supported")
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endif()
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if (ASIO_FETCH_METHOD STREQUAL "GIT")
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FetchContent_Declare(
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asio
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GIT_REPOSITORY https://github.com/mononerv/asio.git
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GIT_TAG ${ASIO_VERSION}
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)
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endif()
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FetchContent_MakeAvailable(asio)
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if (NOT TARGET asio::asio)
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if (TARGET asio)
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add_library(asio::asio ALIAS asio)
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else()
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message(FATAL_ERROR "Could not fetch asio; no target asio or asio::asio available")
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endif()
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endif()
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set(asio_FOUND TRUE)
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set(asio_LIBRARIES asio::asio)
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set(asio_VERSION "${ASIO_VERSION}")
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get_target_property(_asio_inc asio::asio INTERFACE_INCLUDE_DIRECTORIES)
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set(asio_INCLUDE_DIR "${_asio_inc}")
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# Mark asio includes as SYSTEM to suppress warnings from its headers
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if (_asio_inc AND TARGET asio)
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set_target_properties(asio PROPERTIES
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INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_asio_inc}"
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)
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endif()
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set(ASIO_LICENSE_FILE "${asio_SOURCE_DIR}/LICENSE_1_0.txt" CACHE FILEPATH "Path to Asio license file")
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