cmake: Document vlk_get_header_version
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# ~~~
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# ~~~
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cmake_minimum_required(VERSION 3.15...3.25)
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cmake_minimum_required(VERSION 3.15...3.25)
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# NOTE: Parsing the version like this is suboptimal but neccessary due to our release process:
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# https://github.com/KhronosGroup/Vulkan-Headers/pull/346
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#
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# As shown a more robust approach would be just to add basic test code to check the project version.
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function(vlk_get_header_version)
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function(vlk_get_header_version)
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set(vulkan_core_header_file "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan/vulkan_core.h")
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set(vulkan_core_header_file "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan/vulkan_core.h")
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if (NOT EXISTS ${vulkan_core_header_file})
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if (NOT EXISTS ${vulkan_core_header_file})
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