https://bugs.kde.org/show_bug.cgi?id=520589
Bug ID: 520589
Summary: kwin 6.6.90 Fails to build against Vulkan on i386/i686
Classification: Plasma
Product: kwin
Version First 6.6.90
Reported In:
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 192575
--> https://bugs.kde.org/attachment.cgi?id=192575&action=edit
snippet showing the actual errors in the build
DESCRIPTION
When building kwin 6.6.90 for Fedora Rawhide, the i386/i686 build fails,
against vulkan headers/vulkan-hpp
STEPS TO REPRODUCE
1. Build kwin against Fedora-Rawhide-i686
OBSERVED RESULT
Build fails on i386/i686
EXPECTED RESULT
Successful build
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.6.90
ADDITIONAL INFORMATION
See attached buildlog and focused snippet of actual error.
Doing some digging on my own, this is probably not a kwin "bug" per se, and a
vulkan one, but in my websearching, it appears this is a long standing issue
with vulkan on 32-bit, as Vulkan non-dispatchable handles (VkShaderModule,
VkDisplayKHR, etc.) are defined as structs rather than uint64_t typedefs, and
vulkan_structs.hpp generates operator<=> for containing structs that tries to
use <=> on those handle types — which have no such operator defined.
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