default non fat builds to build system processor

and only message when explicitly setting

Author: x37v

CMakeLists.txt

@@ -19,10 +19,10 @@ if (APPLE)
         if(C74_BUILD_FAT)
             set(CMAKE_OSX_ARCHITECTURES "x86_64;arm64" CACHE STRING "macOS architecture" FORCE)
         else()
-            set(CMAKE_OSX_ARCHITECTURES "x86_64" CACHE STRING "macOS architecture" FORCE)
+            set(CMAKE_OSX_ARCHITECTURES ${CMAKE_SYSTEM_PROCESSOR} CACHE STRING "macOS architecture" FORCE)
         endif()
+        message("CMAKE_OSX_ARCHITECTURES set to ${CMAKE_OSX_ARCHITECTURES}")
     endif()
-    message("CMAKE_OSX_ARCHITECTURES set to ${CMAKE_OSX_ARCHITECTURES}")
 endif()
 
 # Fetch the correct version of the min-api