Refactored host's Linux dist detection to system initialization.

It previously had been part of the SDK-discovery module.

Author: MrPointer

cmake/Platform/Other/FindArduinoSDK.cmake

@@ -1,5 +1,3 @@
-include(${CMAKE_CURRENT_LIST_DIR}/../System/LinuxDistDetector.cmake)
-
 function(find_arduino_sdk _return_var)
 
     if (${CMAKE_HOST_UNIX})
@@ -9,7 +7,6 @@ function(find_arduino_sdk _return_var)
         else () # Probably Linux
             file(GLOB platform_search_paths /usr/share/arduino* /opt/local/arduino* /opt/arduino*
                     /usr/local/share/arduino*)
-            detect_host_linux_distribution()
         endif ()
     elseif (${CMAKE_HOST_WIN32})
         set(platform_search_paths "C:/Program Files (x86)/Arduino" "C:/Program Files/Arduino")

cmake/Platform/System/BuildSystemInitializer.cmake

@@ -1,6 +1,7 @@
 include(AvrToolsFinder)
 include(VersionDetector)
 include(PlatformInitializer)
+include(LinuxDistDetector)
 
 function(find_required_platform_tools)
 
@@ -19,6 +20,9 @@ function(initialize_build_system)
     set_arduino_cmake_defaults()
     find_required_platform_tools()
     detect_sdk_version()
+    if (CMAKE_HOST_UNIX AND NOT CMAKE_HOST_APPLE) # Detect host's Linux distribution
+        detect_host_linux_distribution()
+    endif ()
 
     initialize_arduino_platform()