Core/Build: Enable Clang PCH support and OS X specific features

Core: Fix warnings here and there

src/server/shared/CMakeLists.txt

@@ -28,11 +28,9 @@ file(GLOB sources_localdir *.cpp *.h)
 # Build shared sourcelist
 #
 
-if( USE_COREPCH AND MSVC )
-  set(shared_STAT_SRCS
-    PrecompiledHeaders/sharedPCH.cpp
-    PrecompiledHeaders/sharedPCH.h
-  )
+if (USE_COREPCH)
+  set(shared_STAT_PCH_HDR PrecompiledHeaders/sharedPCH.h)
+  set(shared_STAT_PCH_SRC PrecompiledHeaders/sharedPCH.cpp)
 endif()
 
 set(shared_STAT_SRCS
@@ -51,7 +49,6 @@ set(shared_STAT_SRCS
 )
 
 include_directories(
-  ${CMAKE_BINARY_DIR}
   ${CMAKE_SOURCE_DIR}/dep/SFMT
   ${CMAKE_SOURCE_DIR}/dep/sockets/include
   ${CMAKE_SOURCE_DIR}/dep/utf8cpp
@@ -73,18 +70,16 @@ include_directories(
   ${OPENSSL_INCLUDE_DIR}
 )
 
-add_library(shared STATIC ${shared_STAT_SRCS})
+add_library(shared STATIC
+  ${shared_STAT_SRCS}
+  ${shared_STAT_PCH_SRC}
+)
 
 target_link_libraries(shared
   ${ACE_LIBRARY}
 )
 
 # Generate precompiled header
-if( USE_COREPCH )
-  if(CMAKE_COMPILER_IS_GNUCXX)
-    add_precompiled_header(shared ${CMAKE_CURRENT_SOURCE_DIR}/PrecompiledHeaders/sharedPCH.h)
-  elseif(MSVC)
-    add_native_precompiled_header(shared ${CMAKE_CURRENT_SOURCE_DIR}/PrecompiledHeaders/sharedPCH)
-  endif()
-endif()
-
+if (USE_COREPCH)
+  add_cxx_pch(shared ${shared_STAT_PCH_HDR} ${shared_STAT_PCH_SRC})
+endif ()