[cmake] fix android once for all

Signed-off-by: lizzie <lizzie@eden-emu.dev>

CMakeLists.txt

@@ -316,6 +316,18 @@ if (YUZU_ROOM)
     add_compile_definitions(YUZU_ROOM)
 endif()
 
+if (ANDROID OR PLATFORM_FREEBSD OR PLATFORM_OPENBSD OR PLATFORM_SUN)
+    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+        # libc++ has stop_token and jthread as experimental
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fexperimental-library")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexperimental-library")
+    else()
+        # Uses glibc, mostly?
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_LIBCPP_ENABLE_EXPERIMENTAL=1")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_LIBCPP_ENABLE_EXPERIMENTAL=1")
+    endif()
+endif()
+
 # Build/optimization presets
 if (PLATFORM_LINUX OR CXX_CLANG)
     if (ARCHITECTURE_x86_64)