Cheevos: Linux support

CMakeLists.txt

@@ -65,6 +65,10 @@ if(ANDROID)
     message("Building for Android, disabling Discord Presence support")
     set(ENABLE_DISCORD_PRESENCE OFF)
   endif()
+  if(ENABLE_CHEEVOS)
+    message("Building for Android. disabling RetroAchievements support")
+    set(ENABLE_CHEEVOS OFF)
+  endif()
   if(USE_SDL2)
     message("Building for Android, disabling SDL2 support")
     set(USE_SDL2 OFF)
@@ -133,6 +137,13 @@ if(USE_EVDEV)
   message(STATUS "EVDev Support enabled")
   find_package(LIBEVDEV REQUIRED)
 endif()
+if(ENABLE_CHEEVOS)
+  message(STATUS "RetroAchievements support enabled")
+  if(NOT WIN32)
+    find_package(CURL REQUIRED)
+  endif()
+endif()
+
 
 # Set _DEBUG macro for Debug builds.
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")