Build gamescope in Fedora 40

_gamescope_build_fedora40.md

gamescope build on Fedora 40

These are my notes on how to build gamescope in Fedora 40

Install dependencies

sudo dnf install SDL2-devel cmake gcc gcc-c++ git glm-devel glslang google-benchmark-devel hwdata-devel libX11-devel libXcomposite-devel libXcursor-devel libXdamage-devel libXext-devel libXfixes-devel libXmu-devel libXrender-devel libXres-devel libXtst-devel libXxf86vm-devel libcap-devel libdisplay-info-devel libdrm-devel libliftoff-devel libxkbcommon-devel meson ninja-build pipewire-devel stb_image-devel stb_image_resize-devel stb_image_write-devel vkroots-devel vulkan-loader-devel wayland-devel wayland-protocols-devel wlroots-devel xorg-x11-server-Xwayland-devel libavif-devel libseat-devel

Clone gamescope

git clone https://github.com/ValveSoftware/gamescope.git
cd gamescope/
git submodule update --init --recursive

Fix subprojects compatibility with gcc14

Apply libliftoff gcc14 patch

(cd subprojects/libliftoff/ && curl https://gist.githubusercontent.com/perroboc/e090a556d262c9775f88295bd4f6b361/raw/b9c56b6afb302243b507801a3c0c94187a3cafcd/libliftoff-gcc14-fedora40.patch | git apply -v --index)

Apply wlroots gcc14 patch

(cd subprojects/wlroots/ && curl https://gist.githubusercontent.com/perroboc/e090a556d262c9775f88295bd4f6b361/raw/b9c56b6afb302243b507801a3c0c94187a3cafcd/wlroots-gcc14-fedora40.patch | git apply -v --index)

Setup build and compile

meson setup -Dpipewire=enabled --reconfigure build/
meson install -C build/ --skip-subprojects

libliftoff-gcc14-fedora40.patch

From 29a06add8ef184f85e37ff8abdc34fbaa2f4ee1e Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <[email protected]>
Date: Thu, 21 Dec 2023 20:15:29 +0000
Subject: [PATCH] layer.c: fix build against upcoming `gcc-14`
 (`-Werror=calloc-transposed-args`)

`gcc-14` added a new `-Wcalloc-transposed-args` warning recently. It
detected minor infelicity in `calloc()` API usage in `libliftoff`:

    ../layer.c: In function 'liftoff_layer_create':
    ../layer.c:20:48: error: 'calloc' sizes specified with 'sizeof' in the earlier argument and not in t
    ument [-Werror=calloc-transposed-args]
       20 |         layer->candidate_planes = calloc(sizeof(layer->candidate_planes[0]),
          |                                                ^
    ../layer.c:20:48: note: earlier argument should specify number of elements, later size of each element
---
 layer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/layer.c b/layer.c
index 73a8186..6510ea7 100644
--- a/layer.c
+++ b/layer.c
@@ -17,8 +17,8 @@ liftoff_layer_create(struct liftoff_output *output)
 		return NULL;
 	}
 	layer->output = output;
-	layer->candidate_planes = calloc(sizeof(layer->candidate_planes[0]),
-					 output->device->planes_cap);
+	layer->candidate_planes = calloc(output->device->planes_cap,
+					 sizeof(layer->candidate_planes[0]));
 	if (layer->candidate_planes == NULL) {
 		liftoff_log_errno(LIFTOFF_ERROR, "calloc");
 		free(layer);
-- 
GitLab

wlroots-gcc14-fedora40.patch

diff --git a/backend/libinput/tablet_pad.c b/backend/libinput/tablet_pad.c
index 2e74022a..e5327528 100644
--- a/backend/libinput/tablet_pad.c
+++ b/backend/libinput/tablet_pad.c
@@ -33,7 +33,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
 			++group->ring_count;
 		}
 	}
-	group->rings = calloc(sizeof(unsigned int), group->ring_count);
+	group->rings = calloc(group->ring_count, sizeof(unsigned int));
 	if (group->rings == NULL) {
 		goto group_fail;
 	}
@@ -50,7 +50,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
 			++group->strip_count;
 		}
 	}
-	group->strips = calloc(sizeof(unsigned int), group->strip_count);
+	group->strips = calloc(group->strip_count, sizeof(unsigned int));
 	if (group->strips == NULL) {
 		goto group_fail;
 	}
@@ -66,7 +66,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
 			++group->button_count;
 		}
 	}
-	group->buttons = calloc(sizeof(unsigned int), group->button_count);
+	group->buttons = calloc(group->button_count, sizeof(unsigned int));
 	if (group->buttons == NULL) {
 		goto group_fail;
 	}

so every time i run these comand i get errors

c2n14@fedora:~/gamescope$ (cd subprojects/wlroots/ && curl https://gist.githubusercontent.com/perroboc/e090a556d262c9775f88295bd4f6b361/raw/b9c56b6afb302243b507801a3c0c94187a3cafcd/wlroots-gcc14-fedora40.patch | git apply -v --index)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1115 100 1115 0 0 3690 0 --:--:-- --:--:-- --:--:-- 3692
Checking patch backend/libinput/tablet_pad.c...
error: while searching for:
++group->ring_count;
}
}
group->rings = calloc(sizeof(unsigned int), group->ring_count);
if (group->rings == NULL) {
goto group_fail;
}

error: patch failed: backend/libinput/tablet_pad.c:33
error: backend/libinput/tablet_pad.c: patch does not apply
c2n14@fedora:~/gamescope$ meson setup -Dpipewire=enabled --reconfigure build/
meson install -C build/ --skip-subprojects
The Meson build system
Version: 1.4.0
Source dir: /home/c2n14/gamescope
Build dir: /home/c2n14/gamescope/build
Build type: native build
Project name: gamescope
Project version: undefined
C compiler for the host machine: cc (gcc 14.0.1 "cc (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
C linker for the host machine: cc ld.bfd 2.41-34
C++ compiler for the host machine: c++ (gcc 14.0.1 "c++ (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
C++ linker for the host machine: c++ ld.bfd 2.41-34
Host machine cpu family: x86_64
Host machine cpu: x86_64
Compiler for C++ supports arguments -Wno-unused-parameter: YES
Compiler for C++ supports arguments -Wno-missing-field-initializers: YES
Compiler for C++ supports arguments -Wno-c99-designator: NO
Compiler for C++ supports arguments -Wno-invalid-offsetof: YES
Compiler for C++ supports arguments -Wno-unused-const-variable: YES
Compiler for C++ supports arguments -Wno-volatile: YES
Compiler for C++ supports arguments -Wno-deprecated-volatile: NO
Compiler for C++ supports arguments -Wno-ignored-qualifiers: YES
Compiler for C++ supports arguments -Wno-missing-braces: YES
Compiler for C++ supports arguments -ffast-math: YES
Found pkg-config: YES (/usr/bin/pkg-config) 2.1.0
Run-time dependency libpipewire-0.3 found: YES 1.0.5
Library rt found: YES
Run-time dependency hwdata found: YES 0.381
Run-time dependency x11 found: YES 1.8.9
Run-time dependency wayland-client found: YES 1.22.0
Run-time dependency vulkan found: YES 1.3.280
Found CMake: /usr/bin/cmake (3.28.2)
Run-time dependency openvr found: NO (tried pkgconfig and cmake)

Executing subproject openvr method cmake

openvr| Found CMake: /usr/bin/cmake (3.28.2)

| Configuring the build directory with CMake version 3.28.2
| Running CMake with: -G Ninja -DCMAKE_INSTALL_PREFIX=/usr/local -DUSE_LIBCXX=False
| - build directory: /home/c2n14/gamescope/build/subprojects/openvr/__CMake_build
| - source directory: /home/c2n14/gamescope/subprojects/openvr
| - toolchain file: /home/c2n14/gamescope/build/subprojects/openvr/__CMake_build/CMakeMesonToolchainFile.cmake
| - preload file: /usr/lib/python3.12/site-packages/mesonbuild/cmake/data/preload.cmake
| - trace args: --trace-expand --trace-format=json-v1 --no-warn-unused-cli --trace-redirect=cmake_trace.txt
| - disabled policy warnings: [CMP0025, CMP0047, CMP0056, CMP0060, CMP0065, CMP0066, CMP0067, CMP0082, CMP0089, CMP0102]

| CMake Deprecation Warning at CMakeLists.txt:2 (cmake_minimum_required):
| Compatibility with CMake < 3.5 will be removed from a future version of
| CMake.

| Update the VERSION argument value or use a ... suffix to tell
| CMake that the project does not need compatibility with older versions.

| Put cmake in trace mode, but with variables expanded.
| Put cmake in trace mode and sets the trace output format.
| Not searching for unused variables given on the command line.
| Put cmake in trace mode and redirect trace output to a file instead of stderr.
| Trace will be written to cmake_trace.txt

| -- The C compiler identification is GNU 14.0.1
| -- The CXX compiler identification is GNU 14.0.1
| CMake Warning (dev) at /usr/share/cmake/Modules/CMakeFindBinUtils.cmake:224 (find_program):
| Policy CMP0126 is not set: set(CACHE) does not remove a normal variable of
| the same name. Run "cmake --help-policy CMP0126" for policy details. Use
| the cmake_policy command to set the policy and suppress this warning.

| For compatibility with older versions of CMake, normal variable
| "CMAKE_TAPI" will be removed from the current scope.
| Call Stack (most recent call first):
| /usr/share/cmake/Modules/CMakeDetermineCXXCompiler.cmake:202 (include)
| CMakeLists.txt:5 (project)
| This warning is for project developers. Use -Wno-dev to suppress it.

| -- 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
| -- Configuring done (0.3s)
| -- Generating done (0.0s)
| -- Build files have been written to: /home/c2n14/gamescope/build/subprojects/openvr/__CMake_build

openvr| CMake configuration: SUCCEEDED
openvr| CMake project OpenVRSDK has 1 build targets.
openvr| Generated Meson AST: /home/c2n14/gamescope/build/subprojects/openvr/meson.build
openvr| Project name: OpenVRSDK
openvr| Project version: undefined
openvr| C++ compiler for the host machine: c++ (gcc 14.0.1 "c++ (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
openvr| C++ linker for the host machine: c++ ld.bfd 2.41-34
openvr| Build targets in project: 1
openvr| Subproject openvr finished.

Check usable header "vulkan/vulkan.h" with dependency vulkan: YES
Build-time dependency wayland-scanner found: YES 1.22.0
Program /usr/bin/wayland-scanner found: YES (/usr/bin/wayland-scanner)
Run-time dependency wayland-protocols found: YES 1.34
Looking for a fallback subproject for the dependency vkroots because:
Use of fallback dependencies is forced.

Executing subproject vkroots

vkroots| Project name: vkroots
vkroots| Project version: undefined
vkroots| C++ compiler for the host machine: c++ (gcc 14.0.1 "c++ (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
vkroots| C++ linker for the host machine: c++ ld.bfd 2.41-34
vkroots| Build targets in project: 43
vkroots| Subproject vkroots finished.

Dependency vkroots found: YES undefined (overridden)
Run-time dependency xcb found: YES 1.16
Run-time dependency x11-xcb found: YES 1.8.9
Run-time dependency glm found: YES 0.9.9
Dependency wayland-client found: YES 1.22.0 (cached)
Configuring VkLayer_FROG_gamescope_wsi.x86_64.json using configuration
Run-time dependency xdamage found: YES 1.1.6
Run-time dependency xcomposite found: YES 0.4.6
Run-time dependency xcursor found: YES 1.2.1
Run-time dependency xrender found: YES 0.9.11
Run-time dependency xext found: YES 1.3.6
Run-time dependency xfixes found: YES 6.0.1
Run-time dependency xxf86vm found: YES 1.1.5
Run-time dependency xtst found: YES 1.2.4
Run-time dependency xres found: YES 1.2.2
Run-time dependency xmu found: YES 1.2.0
Run-time dependency xi found: YES 1.8.1
Run-time dependency libdrm found: YES 2.4.120
Run-time dependency libeis-1.0 found: NO (tried pkgconfig and cmake)
Run-time dependency wayland-server found: YES 1.22.0
Dependency wayland-protocols found: YES 1.34 (cached)
Run-time dependency xkbcommon found: YES 1.6.0
Run-time dependency threads found: YES
Run-time dependency libcap found: YES 2.69
Run-time dependency epoll-shim found: NO (tried pkgconfig and cmake)
Dependency glm found: YES 0.9.9 (cached)
Run-time dependency sdl2 found: YES 2.30.1
Run-time dependency stb found: NO (tried pkgconfig and cmake)
Looking for a fallback subproject for the dependency stb
Initialized empty Git repository in /home/c2n14/gamescope/subprojects/stb/.git/
remote: Enumerating objects: 436, done.
remote: Counting objects: 100% (436/436), done.
remote: Compressing objects: 100% (364/364), done.
remote: Total 436 (delta 76), reused 351 (delta 62), pack-reused 0
Receiving objects: 100% (436/436), 1.39 MiB | 692.00 KiB/s, done.
Resolving deltas: 100% (76/76), done.
From https://github.com/nothings/stb

• branch 5736b15f7ea0ffb08dd38af21067c314d6a3aae9 -> FETCH_HEAD
  HEAD is now at 5736b15 re-add perlin noise again

Executing subproject stb

stb| Project name: stb
stb| Project version: 0.1.0
stb| C compiler for the host machine: cc (gcc 14.0.1 "cc (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
stb| C linker for the host machine: cc ld.bfd 2.41-34
stb| Build targets in project: 44
stb| Subproject stb finished.

Dependency stb found: YES 0.1.0 (overridden)
Run-time dependency libavif found: YES 1.0.4
Looking for a fallback subproject for the dependency wlroots because:
Use of fallback dependencies is forced.

Executing subproject wlroots

wlroots| Project name: wlroots
wlroots| Project version: 0.18.0-dev
wlroots| C compiler for the host machine: cc (gcc 14.0.1 "cc (GCC) 14.0.1 20240411 (Red Hat 14.0.1-0)")
wlroots| C linker for the host machine: cc ld.bfd 2.41-34
wlroots| Compiler for C supports arguments -Wundef: YES
wlroots| Compiler for C supports arguments -Wlogical-op: YES
wlroots| Compiler for C supports arguments -Wmissing-include-dirs: YES
wlroots| Compiler for C supports arguments -Wold-style-definition: YES
wlroots| Compiler for C supports arguments -Wpointer-arith: YES
wlroots| Compiler for C supports arguments -Winit-self: YES
wlroots| Compiler for C supports arguments -Wstrict-prototypes: YES
wlroots| Compiler for C supports arguments -Wimplicit-fallthrough=2: YES
wlroots| Compiler for C supports arguments -Wendif-labels: YES
wlroots| Compiler for C supports arguments -Wstrict-aliasing=2: YES
wlroots| Compiler for C supports arguments -Woverflow: YES
wlroots| Compiler for C supports arguments -Wmissing-prototypes: YES
wlroots| Compiler for C supports arguments -Walloca: YES
wlroots| Compiler for C supports arguments -Wno-missing-braces: YES
wlroots| Compiler for C supports arguments -Wno-missing-field-initializers: YES
wlroots| Compiler for C supports arguments -Wno-unused-parameter: YES
wlroots| Compiler for C supports arguments -fmacro-prefix-map=/prefix/to/hide=: YES
wlroots| Dependency wayland-server found: YES 1.22.0 (cached)
wlroots| Dependency libdrm found: YES 2.4.120 (cached)
wlroots| Dependency xkbcommon found: YES 1.6.0 (cached)
wlroots| Run-time dependency pixman-1 found: YES 0.43.0
wlroots| Library m found: YES
wlroots| Library rt found: YES
wlroots| Dependency wayland-protocols found: YES 1.34 (cached)
wlroots| Dependency wayland-scanner found: YES 1.22.0 (cached)
wlroots| Program /usr/bin/wayland-scanner found: YES (/usr/bin/wayland-scanner)
wlroots| Has header "linux/dma-buf.h" : YES
wlroots| Has header "sys/eventfd.h" : YES
wlroots| Dependency pixman-1 found: YES 0.43.0 (cached)
wlroots| Run-time dependency libudev found: YES 255
wlroots| Run-time dependency libseat found: YES 0.8.0
wlroots| Run-time dependency libinput found: YES 1.25.0
wlroots| Dependency wayland-client found: YES 1.22.0 (cached)
wlroots| Run-time dependency xwayland found: YES 23.2.6
wlroots| Dependency xcb found: YES 1.16 (cached)
wlroots| Run-time dependency xcb-composite found: YES 1.16
wlroots| Run-time dependency xcb-ewmh found: YES 0.4.2
wlroots| Run-time dependency xcb-icccm found: YES 0.4.2
wlroots| Run-time dependency xcb-render found: YES 1.16
wlroots| Run-time dependency xcb-res found: YES 1.16
wlroots| Run-time dependency xcb-xfixes found: YES 1.16
wlroots| Run-time dependency xcb-errors found: YES 1.0.1
wlroots| Checking for function "xcb_xfixes_set_client_disconnect_mode" with dependencies xcb, xcb-composite, xcb-ewmh, xcb-icccm, xcb-render, xcb-res, xcb-xfixes, xcb-errors: YES
wlroots| Configuring config.h using configuration
wlroots| Configuring version.h using configuration
wlroots| Configuring config.h using configuration
wlroots| Build targets in project: 177
wlroots| Subproject wlroots finished.

Dependency wlroots found: YES 0.18.0-dev (overridden)
Run-time dependency libdisplay-info found: YES 0.1.1
Run-time dependency libdecor-0 found: NO (tried pkgconfig and cmake)

src/meson.build:41:15: ERROR: Dependency "libdecor-0" not found, tried pkgconfig and cmake

A full log can be found at /home/c2n14/gamescope/build/meson-logs/meson-log.txt
Install data not found. Run this command in build directory root.
c2n14@fedora:~/gamescope$

fixed it for me, thanks!!