[cmake] final USE_CCACHE changes

* please, kill me baby

Signed-off-by: Caio Oliveira <caiooliveirafarias0@gmail.com>

CMakeLists.txt

@@ -263,7 +263,6 @@ if(USE_CCACHE)
         message(STATUS "Found ccache at: ${CCACHE_BINARY}")
         set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_BINARY})
         set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_BINARY})
-        set(CMAKE_OBJC_COMPILER_LAUNCHER ${CCACHE_BINARY})
         if(WIN32)
             message(WARNING "USE_CCACHE is unstable under Windows, errors may occur...")
             # we need to downgrade debug info (/Zi -> /Z7) to use an older but more cacheable format
@@ -271,6 +270,9 @@ if(USE_CCACHE)
             string(REPLACE "/Zi" "/Z7" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
             string(REPLACE "/Zi" "/Z7" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
         endif()
+        if (YUZU_USE_PRECOMPILED_HEADERS)
+            message(WARNING "YUZU_USE_PRECOMPILED_HEADERS reduce the number of USE_CCACHE files, consider disabling...")
+        endif()
     else()
         message(WARNING "USE_CCACHE enabled, but no executable found at: ${CCACHE_PATH}")
     endif()

CMakeModules/MinGWClangCross.cmake

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # SPDX-FileCopyrightText: 2022 yuzu Emulator Project
 # SPDX-License-Identifier: GPL-3.0-or-later