From 072d5419ebbd088e94a752e8563f9d10c2f36938 Mon Sep 17 00:00:00 2001
From: cat <cat@plan9.rocks>
Date: Tue, 7 Apr 2026 16:47:45 +0000
Subject: [PATCH] Add Launcher_ENABLE_GAMEMODE CMake flag

Signed-off-by: cat <cat@plan9.rocks>
---
 CMakeLists.txt                                   | 4 +++-
 launcher/Application.cpp                         | 4 ++++
 launcher/CMakeLists.txt                          | 3 ++-
 launcher/minecraft/launch/LauncherPartLaunch.cpp | 4 ++--
 4 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80977e06e..8e899c82d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -303,7 +303,9 @@ endif()
 
 find_package(cmark REQUIRED)
 
-if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+option(Launcher_ENABLE_GAMEMODE "Enable Feral Gamemode support" ON)
+
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND Launcher_ENABLE_GAMEMODE)
     find_package(PkgConfig REQUIRED)
     pkg_check_modules(gamemode REQUIRED IMPORTED_TARGET gamemode)
 endif()
diff --git a/launcher/Application.cpp b/launcher/Application.cpp
index 7af39b55e..09c65cfe7 100644
--- a/launcher/Application.cpp
+++ b/launcher/Application.cpp
@@ -131,8 +131,10 @@
 #ifdef Q_OS_LINUX
 #include <dlfcn.h>
 #include "LibraryUtils.h"
+#ifdef ENABLE_GAMEMODE
 #include "gamemode_client.h"
 #endif
+#endif
 
 #if defined(Q_OS_LINUX)
 #include <sys/statvfs.h>
@@ -1837,8 +1839,10 @@ void Application::updateCapabilities()
         m_capabilities |= SupportsFlame;
 
 #ifdef Q_OS_LINUX
+#ifdef ENABLE_GAMEMODE
     if (gamemode_query_status() >= 0)
         m_capabilities |= SupportsGameMode;
+#endif
 
     if (!LibraryUtils::findMangoHud().isEmpty())
         m_capabilities |= SupportsMangoHud;
diff --git a/launcher/CMakeLists.txt b/launcher/CMakeLists.txt
index c2f5e70cf..ac177457e 100644
--- a/launcher/CMakeLists.txt
+++ b/launcher/CMakeLists.txt
@@ -1356,10 +1356,11 @@ else()
     target_link_libraries(Launcher_logic LibArchive::LibArchive)
 endif()
 
-if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+if (CMAKE_SYSTEM_NAME STREQUAL "Linux" AND Launcher_ENABLE_GAMEMODE)
     target_link_libraries(Launcher_logic
         gamemode
     )
+    add_compile_definitions(ENABLE_GAMEMODE)
 endif()
 
 target_link_libraries(Launcher_logic
diff --git a/launcher/minecraft/launch/LauncherPartLaunch.cpp b/launcher/minecraft/launch/LauncherPartLaunch.cpp
index a2c400e75..671712daa 100644
--- a/launcher/minecraft/launch/LauncherPartLaunch.cpp
+++ b/launcher/minecraft/launch/LauncherPartLaunch.cpp
@@ -44,7 +44,7 @@
 #include "launch/LaunchTask.h"
 #include "minecraft/MinecraftInstance.h"
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_LINUX) && ENABLE_GAMEMODE
 #include "gamemode_client.h"
 #endif
 
@@ -149,7 +149,7 @@ void LauncherPartLaunch::executeTask()
         m_process.start(javaPath, args);
     }
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_LINUX) && ENABLE_GAMEMODE
     if (instance->settings()->get("EnableFeralGamemode").toBool() && APPLICATION->capabilities() & Application::SupportsGameMode) {
         auto pid = m_process.processId();
         if (pid) {