Add proper use of precompiled headers on linux - this removes an approx 50% reduction of total compiletime

--HG--
branch : trunk

CMakeLists.txt

@@ -1,4 +1,4 @@
-PROJECT(Trinity)
+project(Trinity)
 cmake_minimum_required(VERSION 2.6)
 cmake_policy(SET CMP0005 OLD)
 
@@ -7,78 +7,94 @@ include(cmake/FindAce.cmake)
 include(cmake/FindMySql.cmake)
 include(cmake/FindReadline.cmake)
 include(cmake/FindTermcap.cmake)
+include(cmake/PCH.cmake)
+
+# Force out-of-source build
+string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" BUILDING_IN_SOURCE)
+if(BUILDING_IN_SOURCE)
+    message(FATAL_ERROR "This project requires an out of source build. Please create a separate build directory and run 'cmake path_to_project [options]' there.")
+endif(BUILDING_IN_SOURCE)
+
+# Select the Release build configuration by default.
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "Release")
+endif(NOT CMAKE_BUILD_TYPE)
+
 CONFIGURE_FILE(
     "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
     "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
     IMMEDIATE @ONLY)
-ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 
-OPTION(DO_MYSQL "With MySQL support" 1)
+option(DO_MYSQL "With MySQL support" 1)
-OPTION(DO_SCRIPTS "With trinityscripts" 1)
+option(DO_SCRIPTS "With trinityscripts" 1)
-OPTION(DO_CLI "With CLI" 1)
+option(DO_CLI "With CLI" 1)
-OPTION(DO_RA "With RA" 0)
+option(DO_RA "With RA" 0)
-OPTION(DO_DEBUG "Debug mode" 0)
+option(DO_DEBUG "Debug mode" 0)
-OPTION(DO_WARN "Enable all compile warnings" 0)
+option(DO_WARN "Enable all compile warnings" 0)
-OPTION(CENTOS "CENTOS" 0)
+option(DO_WARN "Enable all compile warnings" 0)
-OPTION(DO_SQL "Copy SQL files" 0)
+option(CENTOS "CENTOS" 0)
+option(DO_SQL "Copy SQL files" 0)
+option(DO_PCH "Use precompiled headers" 1)
 
-SET(GENREV_SRC
+set(GENREV_SRC
 src/tools/genrevision/genrevision.cpp
 )
 
 if(DO_DEBUG)
-    ADD_EXECUTABLE(genrev
+    add_executable(genrev
     ${GENREV_SRC}
     )
-    ADD_CUSTOM_TARGET("revision.h" ALL
+    add_custom_target("revision.h" ALL
-        COMMAND "${Trinity_BINARY_DIR}/genrev"
+        COMMAND "${CMAKE_BINARY_DIR}/genrev"
-        ${Trinity_SOURCE_DIR}
+        ${CMAKE_SOURCE_DIR}
-        WORKING_DIRECTORY "${Trinity_SOURCE_DIR}/src/shared"
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/src/shared"
         DEPENDS genrev
     )
 else (DO_DEBUG)
-    ADD_EXECUTABLE(genrev
+    add_executable(genrev
     ${GENREV_SRC}
     )
-    ADD_CUSTOM_TARGET("revision.h" ALL
+    add_custom_target("revision.h" ALL
-        COMMAND "${Trinity_BINARY_DIR}/genrev"
+        COMMAND "${CMAKE_BINARY_DIR}/genrev"
-        ${Trinity_SOURCE_DIR}
+        ${CMAKE_SOURCE_DIR}
-        WORKING_DIRECTORY "${Trinity_SOURCE_DIR}/src/shared"
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/src/shared"
         DEPENDS genrev
     )
 endif(DO_DEBUG)
 
 
-EXECUTE_PROCESS(
+execute_process(
         COMMAND hg tip --template {rev}
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
         OUTPUT_VARIABLE HG_REVISION
 )
 
 message("* TrinityCore revision: ${HG_REVISION}")
 
-IF (PREFIX)
+if(PREFIX)
-    SET(CMAKE_INSTALL_PREFIX ${PREFIX})
+    set(CMAKE_INSTALL_PREFIX ${PREFIX})
-ENDIF (PREFIX)
+endif(PREFIX)
 
 if(CONF_DIR)
 
 else(CONF_DIR)
-SET(CONF_DIR ${PREFIX}/etc)
+    set(CONF_DIR ${PREFIX}/etc)
 endif(CONF_DIR)
-SET(LIBSDIR ${CMAKE_INSTALL_PREFIX}/lib)
+set(LIBSDIR ${CMAKE_INSTALL_PREFIX}/lib)
 
 message("* Will install to: ${CMAKE_INSTALL_PREFIX}")
 message("* With config dir at: ${CONF_DIR}")
 message("* Libs install dir at: ${LIBSDIR}")
 
-FIND_LIBRARY(SSLLIB NAMES ssl DOC "SSL library")
+find_library(SSLLIB NAMES ssl DOC "SSL library")
-FIND_LIBRARY(ZLIB z "Zlib library")
+find_library(ZLIB z "Zlib library")
 
-IF(DO_MYSQL)
+if(DO_MYSQL)
-    MESSAGE("* With MySQL")
+    message("* With MySQL")
     FIND_MYSQL()
     ADD_DEFINITIONS(-DDO_MYSQL)
-ENDIF(DO_MYSQL)
+endif(DO_MYSQL)
 
 if(DO_SCRIPTS)
     message("* With Trinity Scripts")
@@ -114,16 +130,16 @@ if(DO_WARN)
     add_definitions(-Wall -Wfatal-errors -Wextra)
 endif(DO_WARN)
 
-IF(UNIX)
+if(UNIX)
-    IF(CENTOS)
+    if(CENTOS)
         add_definitions(-DCENTOS)
-        MESSAGE("* Building with termcap")
+        message("* Building with termcap")
         FIND_TERMCAP()
-    ELSE(CENTOS)
+    else(CENTOS)
-        MESSAGE("* Building with readline")
+        message("* Building with readline")
         FIND_READLINE()
-    ENDIF(CENTOS)
+    endif(CENTOS)
-ENDIF(UNIX)
+endif(UNIX)
 
 FIND_ACE(ACE)
 if(ACE_FOUND)
@@ -135,39 +151,39 @@ message(SEND_ERROR "** Please build ACE from http://www.cs.wustl.edu/~schmidt/AC
     #For now remove msg about install from repo, as ubuntu/debian don't have needed ver in repos.
     #message(SEND_ERROR "** your distro may provide a binary for ACE e.g. for ubuntu try apt-get install libace-dev")
     return()
-#SET(BUILD_ACE 1)
+    #set(BUILD_ACE 1)
-#SET(ACE_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/dep/ACE_wrappers ${CMAKE_BINARY_DIR}/dep/ACE_wrappers")
+    #set(ACE_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/dep/ACE_wrappers ${CMAKE_BINARY_DIR}/dep/ACE_wrappers")
-#SET(ACE_LIBRARY ACE)
+    #set(ACE_LIBRARY ACE)
     #message(STATUS "I will try to build ACE from: ${ACE_INCLUDE_DIR}")
     #message(STATUS "And link using: ${ACE_LIBRARY}")
 endif(ACE_FOUND)
 
 #somehow line below don't work. so for now change it to if exist
 #check_include_files(${ACE_INCLUDE_DIR}/ace/Stack_Trace.h HAVE_ACE_STACK_TRACE_H)
-IF(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
+if(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
-    SET(HAVE_ACE_STACK_TRACE_H 1)
+    set(HAVE_ACE_STACK_TRACE_H 1)
-ELSE(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
+else(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
     message(STATUS "** Your libace is out of date. Please update your libace!")
-ENDIF(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
+endif(EXISTS ${ACE_INCLUDE_DIR}/ace/Stack_Trace.h)
 
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
-IF (CMAKE_SYSTEM_NAME MATCHES "Darwin")
+if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  SET(MACOSX 1)
+  set(MACOSX 1)
-  SET(OSX_LIBS /opt/local/lib/libcrypto.dylib)
+  set(OSX_LIBS /opt/local/lib/libcrypto.dylib)
   add_definitions(-D__ASSERTMACROS__)
-ENDIF (CMAKE_SYSTEM_NAME MATCHES "Darwin")
+endif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
 
 
 add_definitions(--no-warnings) #to make build look nice, no gcc nazi warnings.
 
-SET(CMAKE_SKIP_BUILD_RPATH FALSE)
+set(CMAKE_SKIP_BUILD_RPATH FALSE)
-SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
+set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
-SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
-SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 
-add_subdirectory(dep)
 #add_subdirectory(doc)
+add_subdirectory(dep)
 add_subdirectory(src)
 if(DO_SQL)
     message("* Copy SQL files ON")

cmake/PCH.cmake

@@ -0,0 +1,315 @@
+#
+# This file is for CMake 2.6
+#
+# - Try to find precompiled headers support for GCC 3.4 and 4.x
+# Once done this will define:
+#
+# Variable:
+#   PCHSupport_FOUND
+#
+# Macro:
+#   ADD_PRECOMPILED_HEADER  _targetName _input  _dowarn
+#   ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use _dowarn
+#   ADD_NATIVE_PRECOMPILED_HEADER _targetName _input _dowarn
+#   GET_NATIVE_PRECOMPILED_HEADER _targetName _input
+
+IF(CMAKE_COMPILER_IS_GNUCXX)
+
+    EXEC_PROGRAM(
+    	${CMAKE_CXX_COMPILER}  
+        ARGS 	${CMAKE_CXX_COMPILER_ARG1} -dumpversion 
+        OUTPUT_VARIABLE gcc_compiler_version)
+    #MESSAGE("GCC Version: ${gcc_compiler_version}")
+    IF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
+        SET(PCHSupport_FOUND TRUE)
+    ENDIF(gcc_compiler_version MATCHES "4\\.[0-9]\\.[0-9]")
+    
+    SET(_PCH_include_prefix "-I")
+
+ENDIF(CMAKE_COMPILER_IS_GNUCXX)
+	
+MACRO(_PCH_GET_COMPILE_FLAGS _out_compile_flags)
+
+
+  STRING(TOUPPER "CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}" _flags_var_name)
+  SET(return_value ${${_flags_var_name}} )
+  
+  IF(CMAKE_COMPILER_IS_GNUCXX)
+    
+    GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE)
+    IF(${_targetType} STREQUAL SHARED_LIBRARY)
+      LIST(APPEND return_value "${return_value} -fPIC")
+    ENDIF(${_targetType} STREQUAL SHARED_LIBRARY)
+    
+  ENDIF(CMAKE_COMPILER_IS_GNUCXX)
+  
+  GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES )
+  FOREACH(item ${DIRINC})
+    LIST(APPEND return_value "${_PCH_include_prefix}${item}")
+  ENDFOREACH(item)
+  
+  SET(_build_type "${CMAKE_BUILD_TYPE}")
+
+  #MESSAGE(STATUS "build type: `${CMAKE_BUILD_TYPE}'")
+
+  IF (NOT _build_type)
+      SET(_build_type "Debug")
+  ENDIF (NOT _build_type)
+
+  string(TOUPPER ${_build_type} _build_type)
+  SET(_def_name "COMPILE_DEFINITIONS_${_build_type}")
+  GET_DIRECTORY_PROPERTY(_directory_flags ${_def_name})
+  FOREACH(item ${_directory_flags})
+    LIST(APPEND return_value "-D${item}")
+  ENDFOREACH(item)
+  GET_DIRECTORY_PROPERTY(_directory_flags COMPILE_DEFINITIONS)
+  LIST(APPEND ${_out_compile_flags} ${return_value})
+  FOREACH(_def ${_directory_flags})
+  	LIST(APPEND ${_out_compile_flags} "-D${_def}")
+  ENDFOREACH(_def)
+  LIST(APPEND ${_out_compile_flags} ${CMAKE_CXX_FLAGS} )
+  
+  SEPARATE_ARGUMENTS(${_out_compile_flags})
+  
+ENDMACRO(_PCH_GET_COMPILE_FLAGS)
+
+#
+#
+#
+
+MACRO(_PCH_WRITE_PCHDEP_CXX _targetName _include_file _dephelp)
+
+  SET(${_dephelp} ${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch_dephelp.cxx)
+  FILE(WRITE  ${${_dephelp}}
+"#include \"${_include_file}\" 
+int testfunction()
+{
+    return 0;
+}
+"
+    ) 
+
+ENDMACRO(_PCH_WRITE_PCHDEP_CXX )
+
+#
+#
+#
+
+MACRO(_PCH_GET_COMPILE_COMMAND out_command _input _output)
+
+	FILE(TO_NATIVE_PATH ${_input} _native_input)
+	FILE(TO_NATIVE_PATH ${_output} _native_output)
+	
+
+	IF(CMAKE_COMPILER_IS_GNUCXX)
+	    SET(${out_command} 
+	      ${CMAKE_CXX_COMPILER}  ${_compile_FLAGS}	-x c++-header -o ${_output} ${_input} 
+	      )
+	ENDIF(CMAKE_COMPILER_IS_GNUCXX)
+	
+ENDMACRO(_PCH_GET_COMPILE_COMMAND )
+
+#
+#
+#
+
+MACRO(_PCH_GET_TARGET_COMPILE_FLAGS _cflags  _header_name _pch_path _dowarn )
+
+  FILE(TO_NATIVE_PATH ${_pch_path} _native_pch_path)
+  
+  IF(CMAKE_COMPILER_IS_GNUCXX)
+    # for use with distcc and gcc >4.0.1 if preprocessed files are accessible
+    # on all remote machines set
+    # PCH_ADDITIONAL_COMPILER_FLAGS to -fpch-preprocess
+    # if you want warnings for invalid header files (which is very inconvenient
+    # if you have different versions of the headers for different build types
+    # you may set _pch_dowarn
+    IF (_dowarn)
+      SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} -Winvalid-pch " )
+    ELSE (_dowarn)
+      SET(${_cflags} "${PCH_ADDITIONAL_COMPILER_FLAGS} -include ${CMAKE_CURRENT_BINARY_DIR}/${_header_name} " )
+    ENDIF (_dowarn)
+  ELSE(CMAKE_COMPILER_IS_GNUCXX)
+    
+    set(${_cflags} "/Fp${_native_pch_path} /Yu${_header_name}" )	
+    
+  ENDIF(CMAKE_COMPILER_IS_GNUCXX)	
+  
+ENDMACRO(_PCH_GET_TARGET_COMPILE_FLAGS )
+
+MACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input _output)
+  GET_FILENAME_COMPONENT(_name ${_input} NAME)
+  GET_FILENAME_COMPONENT(_path ${_input} PATH)
+  SET(_output "${CMAKE_CURRENT_BINARY_DIR}/${_name}.gch/${_targetName}_${CMAKE_BUILD_TYPE}.h++")
+ENDMACRO(GET_PRECOMPILED_HEADER_OUTPUT _targetName _input)
+
+
+MACRO(ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use )
+   
+  # to do: test whether compiler flags match between target  _targetName
+  # and _pch_output_to_use
+  GET_FILENAME_COMPONENT(_name ${_input} NAME)
+
+  IF( "${ARGN}" STREQUAL "0")
+    SET(_dowarn 0)
+  ELSE( "${ARGN}" STREQUAL "0")
+    SET(_dowarn 1)
+  ENDIF("${ARGN}" STREQUAL "0")
+
+
+  _PCH_GET_TARGET_COMPILE_FLAGS(_target_cflags ${_name} ${_pch_output_to_use} ${_dowarn})
+  #   MESSAGE("Add flags ${_target_cflags} to ${_targetName} " )
+  SET_TARGET_PROPERTIES(${_targetName} 
+    PROPERTIES	
+    COMPILE_FLAGS ${_target_cflags} 
+    )
+
+  ADD_CUSTOM_TARGET(pch_Generate_${_targetName}
+    DEPENDS	${_pch_output_to_use} 
+    )
+  
+  ADD_DEPENDENCIES(${_targetName} pch_Generate_${_targetName} )
+  
+ENDMACRO(ADD_PRECOMPILED_HEADER_TO_TARGET)
+
+MACRO(ADD_PRECOMPILED_HEADER _targetName _input)
+
+  SET(_PCH_current_target ${_targetName})
+  
+  IF(NOT CMAKE_BUILD_TYPE)
+    MESSAGE(FATAL_ERROR 
+      "This is the ADD_PRECOMPILED_HEADER macro. " 
+      "You must set CMAKE_BUILD_TYPE!"
+      )
+  ENDIF(NOT CMAKE_BUILD_TYPE)
+
+  IF( "${ARGN}" STREQUAL "0")
+    SET(_dowarn 0)
+  ELSE( "${ARGN}" STREQUAL "0")
+    SET(_dowarn 1)
+  ENDIF("${ARGN}" STREQUAL "0")
+
+
+  GET_FILENAME_COMPONENT(_name ${_input} NAME)
+  GET_FILENAME_COMPONENT(_path ${_input} PATH)
+  GET_PRECOMPILED_HEADER_OUTPUT( ${_targetName} ${_input} _output)
+
+  GET_FILENAME_COMPONENT(_outdir ${_output} PATH )
+
+  GET_TARGET_PROPERTY(_targetType ${_PCH_current_target} TYPE)
+   _PCH_WRITE_PCHDEP_CXX(${_targetName} ${_input} _pch_dephelp_cxx)
+
+  IF(${_targetType} STREQUAL SHARED_LIBRARY)
+    ADD_LIBRARY(${_targetName}_pch_dephelp SHARED ${_pch_dephelp_cxx} )
+  ELSE(${_targetType} STREQUAL SHARED_LIBRARY)
+    ADD_LIBRARY(${_targetName}_pch_dephelp STATIC ${_pch_dephelp_cxx})
+  ENDIF(${_targetType} STREQUAL SHARED_LIBRARY)
+
+  FILE(MAKE_DIRECTORY ${_outdir})
+  
+  _PCH_GET_COMPILE_FLAGS(_compile_FLAGS)
+    
+  #MESSAGE("_compile_FLAGS: ${_compile_FLAGS}")
+  #message("COMMAND ${CMAKE_CXX_COMPILER}	${_compile_FLAGS} -x c++-header -o ${_output} ${_input}")
+  SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_BINARY_DIR}/${_name} PROPERTIES GENERATED 1)
+  ADD_CUSTOM_COMMAND(
+   OUTPUT	${CMAKE_CURRENT_BINARY_DIR}/${_name} 
+   COMMAND ${CMAKE_COMMAND} -E copy  ${_input} ${CMAKE_CURRENT_BINARY_DIR}/${_name} # ensure same directory! Required by gcc
+   DEPENDS ${_input}
+  )
+  
+  #message("_command  ${_input} ${_output}")
+  _PCH_GET_COMPILE_COMMAND(_command  ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_output} )
+  #message("${_command}")
+  
+  #message(${_input} )
+  #message("_output ${_output}")
+
+  ADD_CUSTOM_COMMAND(
+    OUTPUT ${_output} 	
+    COMMAND ${_command}
+    DEPENDS ${_input}   ${CMAKE_CURRENT_BINARY_DIR}/${_name} ${_targetName}_pch_dephelp
+   )
+
+
+  ADD_PRECOMPILED_HEADER_TO_TARGET(${_targetName} ${_input}  ${_output} ${_dowarn})
+ENDMACRO(ADD_PRECOMPILED_HEADER)
+
+
+# Generates the use of precompiled in a target,
+# without using depency targets (2 extra for each target)
+# Using Visual, must also add ${_targetName}_pch to sources
+# Not needed by Xcode
+
+MACRO(GET_NATIVE_PRECOMPILED_HEADER _targetName _input)
+
+	if(CMAKE_GENERATOR MATCHES Visual*)
+
+		SET(_dummy_str "#include \"${_input}\"\n"
+										"// This is required to suppress LNK4221.  Very annoying.\n"
+										"void *g_${_targetName}Dummy = 0\;\n")
+
+		# Use of cxx extension for generated files (as Qt does)
+		SET(${_targetName}_pch ${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch.cxx)
+		if(EXISTS ${${_targetName}_pch})
+			# Check if contents is the same, if not rewrite
+			# todo
+		else(EXISTS ${${_targetName}_pch})
+			FILE(WRITE ${${_targetName}_pch} ${_dummy_str})
+		endif(EXISTS ${${_targetName}_pch})
+	endif(CMAKE_GENERATOR MATCHES Visual*)
+
+ENDMACRO(GET_NATIVE_PRECOMPILED_HEADER)
+
+
+MACRO(ADD_NATIVE_PRECOMPILED_HEADER _targetName _input)
+
+	IF( "${ARGN}" STREQUAL "0")
+		SET(_dowarn 0)
+	ELSE( "${ARGN}" STREQUAL "0")
+		SET(_dowarn 1)
+	ENDIF("${ARGN}" STREQUAL "0")
+	
+	if(CMAKE_GENERATOR MATCHES Visual*)
+		# Auto include the precompile (useful for moc processing, since the use of 
+		# precompiled is specified at the target level
+		# and I don't want to specifiy /F- for each moc/res/ui generated files (using Qt)
+
+		GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS)
+		if (${oldProps} MATCHES NOTFOUND)
+			SET(oldProps "")
+		endif(${oldProps} MATCHES NOTFOUND)
+
+		SET(newProperties "${oldProps} /Yu\"${_input}\" /FI\"${_input}\"")
+		SET_TARGET_PROPERTIES(${_targetName} PROPERTIES COMPILE_FLAGS "${newProperties}")
+		
+		#also inlude ${oldProps} to have the same compile options 
+		SET_SOURCE_FILES_PROPERTIES(${${_targetName}_pch} PROPERTIES COMPILE_FLAGS "${oldProps} /Yc\"${_input}\"")
+		
+	else(CMAKE_GENERATOR MATCHES Visual*)
+	
+		if (CMAKE_GENERATOR MATCHES Xcode)
+			# For Xcode, cmake needs my patch to process
+			# GCC_PREFIX_HEADER and GCC_PRECOMPILE_PREFIX_HEADER as target properties
+			
+			GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS)
+			if (${oldProps} MATCHES NOTFOUND)
+				SET(oldProps "")
+			endif(${oldProps} MATCHES NOTFOUND)
+
+			# When buiding out of the tree, precompiled may not be located
+			# Use full path instead.
+			GET_FILENAME_COMPONENT(fullPath ${_input} ABSOLUTE)
+
+			SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PREFIX_HEADER "${fullPath}")
+			SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PRECOMPILE_PREFIX_HEADER "YES")
+
+		else (CMAKE_GENERATOR MATCHES Xcode)
+
+			#Fallback to the "old" precompiled suppport
+			#ADD_PRECOMPILED_HEADER(${_targetName} ${_input} ${_dowarn})
+		endif(CMAKE_GENERATOR MATCHES Xcode)
+	endif(CMAKE_GENERATOR MATCHES Visual*)
+
+ENDMACRO(ADD_NATIVE_PRECOMPILED_HEADER)
+

src/game/CMakeLists.txt

@@ -1,5 +1,7 @@
-
+# Enable precompiled headers when using the GCC compiler.
-########### next target ###############
+IF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
+        INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
+ENDIF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
 
 SET(game_STAT_SRCS
    AccountMgr.cpp
@@ -317,6 +319,7 @@ include_directories(
   ${CMAKE_SOURCE_DIR}/src/shared
   ${CMAKE_SOURCE_DIR}/src/shared/vmap
   ${CMAKE_SOURCE_DIR}/src/shared/Database
+  ${CMAKE_SOURCE_DIR}/src/game
   ${MYSQL_INCLUDE_DIR}
 )
 
@@ -343,3 +346,8 @@ endif(NOT DO_SCRIPTS)
 add_library(game STATIC ${game_STAT_SRCS})
 ADD_DEPENDENCIES(game revision.h)
 
+# Generate precompiled header
+IF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
+        ADD_PRECOMPILED_HEADER(game ${CMAKE_SOURCE_DIR}/src/game/pchlinux.h)
+ENDIF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
+

src/game/pchlinux.cpp

@@ -0,0 +1 @@
+#include "pchdef.h"

src/game/pchlinux.h

@@ -0,0 +1,12 @@
+//add here most rarely modified headers to speed up debug build compilation
+#include "WorldSocket.h"                                    // must be first to make ACE happy with ACE includes in it
+#include "Common.h"
+
+#include "MapManager.h"
+#include "Log.h"
+#include "ObjectAccessor.h"
+#include "ObjectDefines.h"
+#include "Database/SQLStorage.h"
+#include "Opcodes.h"
+#include "SharedDefines.h"
+#include "ObjectMgr.h"

src/scripts/CMakeLists.txt

@@ -1,11 +1,13 @@
-
+# Enable precompiled headers when using the GCC compiler.
-########### next target ###############
+IF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
+	INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
+ENDIF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
 
 SET(scripts_STAT_SRCS
-   ../game/ScriptedEscortAI.cpp
-   ../game/ScriptedEscortAI.h
    ../game/ScriptedPch.cpp
    ../game/ScriptedPch.h
+   ../game/ScriptedEscortAI.cpp
+   ../game/ScriptedEscortAI.h
    ../game/ScriptedCreature.cpp
    ../game/ScriptedCreature.h
    ../game/ScriptedFollowerAI.cpp
@@ -586,3 +588,7 @@ include_directories(
 
 add_library(scripts STATIC ${scripts_STAT_SRCS})
 
+# Generate precompiled header
+IF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)
+	ADD_PRECOMPILED_HEADER(scripts ${CMAKE_SOURCE_DIR}/src/game/ScriptedPch.h)
+ENDIF(DO_PCH AND CMAKE_COMPILER_IS_GNUCXX)