Revert "Include order fixed."

This reverts commit e4312223a9.

CMakeLists.txt

@@ -39,8 +39,8 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 add_library(ScopeGuard INTERFACE)
 target_include_directories(ScopeGuard INTERFACE
-                       $<INSTALL_INTERFACE:include>
                        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+                       $<INSTALL_INTERFACE:include>
                        )
 
 if( ENABLE_COMPAT_HEADER )