Fix broken cmake

indra/llcommon/CMakeLists.txt

@@ -305,10 +305,9 @@ add_dependencies(llcommon stage_third_party_libs)
 
 if(${CMAKE_VERSION} VERSION_GREATER "3.15.0") 
   target_precompile_headers(llcommon
-    PUBLIC
+    PRIVATE
     linden_common.h
     llwin32headerslean.h
-    PRIVATE
     <algorithm>
     <atomic>
     <functional>

indra/llcorehttp/CMakeLists.txt

@@ -104,10 +104,9 @@ target_link_libraries(
 
 if(${CMAKE_VERSION} VERSION_GREATER "3.15.0") 
   target_precompile_headers(llcorehttp
-    PUBLIC
+  PRIVATE
   [["linden_common.h"]]
   [["llsd.h"]]
-  PRIVATE
   <boost/intrusive_ptr.hpp>
   <boost/shared_ptr.hpp>
   <boost/make_shared.hpp>