How to compile GLFW Vulkan example on Linux

[stefanos82]

I went to examples/example_glfw_vulkan and tried to build it and got the following:

$ mkdir build && cd $_
$ cmake ..

-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:23 (add_subdirectory):
  add_subdirectory given source "../../../glfw" which is not an existing
  directory.


-- Found Vulkan: /usr/lib/x86_64-linux-gnu/libvulkan.so  
-- Configuring incomplete, errors occurred!
See also "/home/stefanos/tmp/imgui-master/examples/example_glfw_vulkan/build/CMakeFiles/CMakeOutput.log".

The weird thing with the ../../../glfw is that it does not go inside libs.

I have tried to work around this issue but couldn't.

Anyone can help?

[rokups]

Try:

git clone https://github.com/glfw/glfw
git clone https://github.com/ocornut/imgui
cd imgui/examples/example_glfw_vulkan
mkdir build
cd build
cmake ..
cmake --build .

[stefanos82]

Interesting...this approach works, but I guess my system does not support it.

./example_glfw_vulkan 
MESA-INTEL: warning: Haswell Vulkan support is incomplete
vulkan: No DRI3 support detected - required for presentation
Note: you can probably enable DRI3 in your Xorg config
Error no WSI support on physical device 0

Can we update the documentation to show the git clone https://github.com/glfw/glfw part?

It could help the future candidate users from falling into the nightmare I went through last night.