Re: First stable version of gtkmm-4.0 has been released

[Kjell Ahlstedt <kjellahlstedt gmail com>]

On 2020-12-29 11:42, Alexander Borro wrote:
> Thank you for all the great work . I managed to build successfully 
> from tarballs on Fedora 33. I observed one issue however. 
> gtkmm4 compilation failed because valkan/vulkan.h was missing. I then 
> installed vulkan-loader-devel and all completed.
>
> I guess meson should check if this dependency is already installed 
> instead of falling over during compilation. There is a .pc file for 
> this package, so it should be simple to fix in meson.
gtkmm4 does not use Vulkan, but gtk4 does. It surprises me that the 
building of gtkmm4 failed because of a missing Vulkan package. Are you 
sure the failure was not in the compilation of a gtk4 file? There may be 
a bug in one or more meson.build files in gtk4. It looks like the Meson 
configuration of gtk4 checks if Vulkan is installed, but then tries to 
compile C files that include vulkan/vulkan.h (such as 
gdkvulkancontext.h) even if Vulkan is not installed.