Add option to disable ccache detection

CMakeLists.txt

@@ -116,7 +116,6 @@ if(NOT IOS)
 	list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/sdl)
 endif()
 
-include(ccache)
 include(GNUInstallDirs)
 
 add_definitions(-DASSETS_DIR="${CMAKE_INSTALL_FULL_DATADIR}/ppsspp/assets/")
@@ -173,6 +172,11 @@ option(USE_SYSTEM_ZSTD "Dynamically link against system zstd" ${USE_SYSTEM_ZSTD}
 option(USE_SYSTEM_MINIUPNPC "Dynamically link against system miniUPnPc" ${USE_SYSTEM_MINIUPNPC})
 option(USE_ASAN "Use address sanitizer" OFF)
 option(USE_UBSAN "Use undefined behaviour sanitizer" OFF)
+option(USE_CCACHE "Use ccache if detected" ON)
+
+if(USE_CACHE)
+	include(ccache)
+endif()
 
 if(UNIX AND NOT (APPLE OR ANDROID) AND VULKAN)
 	if(USING_X11_VULKAN)