[chore] re-add out/ to .gitignore

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4577
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

.gitignore

@@ -7,6 +7,7 @@
 # Build directory
 /[Bb]uild*/
 doc-build/
+out/
 AppDir/
 uruntime
 

src/android/app/build.gradle.kts

@@ -259,7 +259,7 @@ android {
 
     externalNativeBuild {
         cmake {
-            version = "3.31.6"
+            version = "3.31.5"
             path = file("${edenDir}/CMakeLists.txt")
         }
     }

src/core/arm/nce/arm_nce_asm_definitions.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 /* SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project */
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
@@ -5,9 +8,22 @@
 
 #define __ASSEMBLY__
 
+// Newer Linux UAPI headers check __ASSEMBLER__ instead of __ASSEMBLY__ to hide C declarations.
+// Without it, asm-generic/signal.h redeclares sigset_t and clashes with glibc's. Only define it
+// around these includes, since glibc headers also look at __ASSEMBLER__.
+#ifndef __ASSEMBLER__
+#define __ASSEMBLER__
+#define EDEN_NCE_UNDEF_ASSEMBLER
+#endif
+
 #include <asm-generic/signal.h>
 #include <asm-generic/unistd.h>
 
+#ifdef EDEN_NCE_UNDEF_ASSEMBLER
+#undef __ASSEMBLER__
+#undef EDEN_NCE_UNDEF_ASSEMBLER
+#endif
+
 #define ReturnToRunCodeByExceptionLevelChangeSignal SIGUSR2
 #define BreakFromRunCodeSignal SIGURG
 #define GuestAccessFaultSignal SIGSEGV

src/yuzu/main_window.cpp

@@ -3661,12 +3661,12 @@ void MainWindow::OnToggleGraphicsAPI() {
         api = Settings::RendererBackend::OpenGL_GLSL;
         break;
     case Settings::RendererBackend::OpenGL_GLSL:
-        api = Settings::RendererBackend::OpenGL_GLSL;
-        break;
-    case Settings::RendererBackend::OpenGL_SPIRV:
         api = Settings::RendererBackend::OpenGL_GLASM;
         break;
     case Settings::RendererBackend::OpenGL_GLASM:
+        api = Settings::RendererBackend::OpenGL_SPIRV;
+        break;
+    case Settings::RendererBackend::OpenGL_SPIRV:
         api = Settings::RendererBackend::Null;
         break;
 #else