mkdir HexGPU-build && cd HexGPU-build && cmake ../HexGPU/src --install-prefix=/usr && make
CMake Deprecation Warning at /usr/src/Panzerschrek/HexGPU/snappy/CMakeLists.txt:29 (cmake_minimum_required):
Compatibility with CMake < 3.5 will be removed from a future version of
CMake.
Update the VERSION argument <min> value or use a ...<max> suffix to tell
CMake that the project does not need compatibility with older versions.
-- Configuring done (0.2s)
Warning: Source file "/usr/src/Panzerschrek/HexGPU-build/ShaderList.cpp" is listed multiple times for target "HexGPU".
-- Generating done (0.1s)
-- Build files have been written to: /usr/src/Panzerschrek/HexGPU-build
[ 1%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/imgui.cpp.o
[ 1%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/imgui_draw.cpp.o
[ 2%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/imgui_tables.cpp.o
[ 3%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/imgui_widgets.cpp.o
[ 4%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/backends/imgui_impl_sdl2.cpp.o
[ 5%] Building CXX object CMakeFiles/ImGui.dir/usr/src/Panzerschrek/HexGPU/imgui/backends/imgui_impl_vulkan.cpp.o
[ 6%] Linking CXX static library libImGui.a
[ 6%] Built target ImGui
[ 7%] Building CXX object snappy/CMakeFiles/snappy.dir/snappy-c.cc.o
[ 8%] Building CXX object snappy/CMakeFiles/snappy.dir/snappy-sinksource.cc.o
[ 9%] Building CXX object snappy/CMakeFiles/snappy.dir/snappy-stubs-internal.cc.o
[ 10%] Building CXX object snappy/CMakeFiles/snappy.dir/snappy.cc.o
[ 11%] Linking CXX static library libsnappy.a
[ 11%] Built target snappy
[ 12%] Generating shaders/world_render_pass_present_supersampling.frag.h
/usr/src/Panzerschrek/HexGPU/src/shaders/world_render_pass_present_supersampling.frag.glsl
ERROR: Failed to open file: /usr/src/Panzerschrek/HexGPU-build/shaders/world_render_pass_present_supersampling.frag.h
make[2]: *** [CMakeFiles/HexGPU.dir/build.make:2281: shaders/world_render_pass_present_supersampling.frag.h] Error 1
make[1]: *** [CMakeFiles/Makefile2:128: CMakeFiles/HexGPU.dir/all] Error 2
make: *** [Makefile:136: all] Error 2