Accepting request 1030956 from X11:Wayland
- Update to release SDK-1.3.231.0 OBS-URL: https://build.opensuse.org/request/show/1030956 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/vulkan-headers?expand=0&rev=39
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From 898bd798e823e7708e4dbeb07955ae2ee17f925a Mon Sep 17 00:00:00 2001
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From: Jan Engelhardt <jengelh@inai.de>
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Date: Tue, 12 Jul 2022 17:10:18 +0200
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Subject: [PATCH] Drop wayland-client.h include
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Upstream: not sent
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References: https://build.opensuse.org/package/show/X11:Wayland/vulkan-loader comment from 2022-07-12
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wayland-client may be located outside the default search paths of the compiler
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toolchain. In other words, *any* user of wayland-client must use `pkg-config
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wayland-client --cflags` for compilation, and, later, `pkg-config
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wayland-client --libs` for linking.
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A Vulkan program that defines -DVK_USE_PLATFORM_WAYLAND_KHR would, in
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the general case, also call at least some Wayland functions. The
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build scripts for that program would have to employ `pkg-config
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wayland-client --cflags --libs` in any case, based simply on the use
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of said Wayland functions.
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Now, there is a corner case wherein the program defines
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VK_USE_PLATFORM_*, but does not make use of Wayland functions
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directly:
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echo "#define VK_USE_PLATFORM_WAYLAND_KHR
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#include <vulkan/vulkan.h>
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int main() {return 0;}" | gcc -x c -
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"Should `pkg-config` be required for this?"
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One opinion is that the use of -DVK_USE_PLATFORM_WAYLAND_KHR is so
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explicitly willful that `pkg-config` is required.
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Another stance is that, since no Wayland header and no Wayland
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functions were directly used by the program, the program itself
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should not have to use `pkg-config`; responsibility to satisfy the
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"#include <wayland-client.h>" in vulkan.h would then fall to
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vulkan.pc, which would have to pull in wayland-client.pc. That on the
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other hand would pull in wayland for everyone, which is bad.
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Either way, I found the following option: Delete the include for
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which you would need wayland's -I flags. This works because we can
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just add forward declaration like "struct wl_display;" to
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vulkan_wayland.h. But we don't even need that. C (and C++) seem to be
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fine with undeclared names, e.g.
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//no "struct T;"
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struct S { struct T *t; }
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void f(struct T *t) {}
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so I guess it's the solution, for now.
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Keep in mind that, as soon as a program uses Wayland functions (directly; not
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indirectly through vulkan), it needs to #include <wayland-client.h> anyway on
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its own, and then the pkg-config case from the first paragraph applies.
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---
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include/vulkan/vulkan.h | 1 -
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1 file changed, 1 deletion(-)
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diff --git a/include/vulkan/vulkan.h b/include/vulkan/vulkan.h
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index 004fa70..3510ac9 100644
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--- a/include/vulkan/vulkan.h
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+++ b/include/vulkan/vulkan.h
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@@ -38,7 +38,6 @@
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#ifdef VK_USE_PLATFORM_WAYLAND_KHR
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-#include <wayland-client.h>
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#include "vulkan_wayland.h"
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#endif
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--
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2.36.1
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version https://git-lfs.github.com/spec/v1
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oid sha256:ccdfa47cea58a080957481fb6c35908d005d04cc5dd1778150dc0c651ccea077
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size 1521365
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3
sdk-1.3.231.0.tar.gz
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3
sdk-1.3.231.0.tar.gz
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version https://git-lfs.github.com/spec/v1
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oid sha256:f7c185dedf7753d58e7b59913dd4b77006a6ed91fae598c5961f77d85b183da0
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size 1691630
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@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Mon Oct 24 19:10:42 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
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- Update to release SDK-1.3.231.0
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* No changelog was provided
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(but do take a look in vulkan-
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- Drop 0001-Drop-wayland-client.h-include.patch (merged upstream)
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-------------------------------------------------------------------
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Mon Aug 22 22:38:14 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
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@ -21,14 +21,13 @@
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# Consider only updating the sources in lockstep.
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#
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Name: vulkan-headers
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Version: 1.3.224.0
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Version: 1.3.231.0
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Release: 0
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Summary: Vulkan C and C++ API header files
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License: Apache-2.0
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Group: Development/Libraries/C and C++
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URL: https://github.com/KhronosGroup/Vulkan-Headers
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Source: https://github.com/KhronosGroup/Vulkan-Headers/archive/refs/tags/sdk-%version.tar.gz
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Patch1: 0001-Drop-wayland-client.h-include.patch
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BuildRequires: cmake >= 2.8.11
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BuildArch: noarch
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Requires: pkgconfig(wayland-client)
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