# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
#
# Copyright (c) 2006-2011 Peter Kümmel, <syntheticpp@gmx.net>
# Copyright (c) 2008-2011 Kornel Benko, <Kornel.Benko@berlin.de>

cmake_minimum_required(VERSION 2.6.4)


set(LYX_PROJECT lyx)

set(LYX_CMAKE_DIR "development/cmake")
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/${LYX_CMAKE_DIR}/modules")

get_filename_component(lyx_dir_readme ${CMAKE_SOURCE_DIR}/README ABSOLUTE)
get_filename_component(TOP_SRC_DIR ${lyx_dir_readme} PATH)

set(CMAKE_PROJECT_NAME ${LYX_PROJECT})

message(STATUS)
if (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR}) 
	message(STATUS "Building in-source")
	set(TOP_BINARY_DIR "${CMAKE_BINARY_DIR}/build")
else()
	message(STATUS "Building out-of-source")
	set(TOP_BINARY_DIR "${CMAKE_BINARY_DIR}")
endif()


if(COMMAND cmake_policy)
	cmake_policy(SET CMP0003 OLD)
	cmake_policy(SET CMP0005 OLD)
endif()

set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)

# Supress regeneration
set(CMAKE_SUPPRESS_REGENERATION FALSE)

if(NOT help AND NOT HELP)
	# 'project' triggers the searching for a compiler
	project(${LYX_PROJECT})
endif()

if(UNIX)
	set(ARCH_TRIPLET )
	FIND_PROGRAM(DPKG_ARCHITECTURE_EXECUTABLE dpkg-architecture)
	if(DPKG_ARCHITECTURE_EXECUTABLE)
		EXECUTE_PROCESS(COMMAND ${DPKG_ARCHITECTURE_EXECUTABLE} -qDEB_HOST_MULTIARCH
				OUTPUT_VARIABLE ARCH_TRIPLET
				ERROR_VARIABLE ERROR_ARCH_TRIPLET
				OUTPUT_STRIP_TRAILING_WHITESPACE)
	endif()
endif()
if(ARCH_TRIPLET)
	set(SYSTEM_LIB_DIRS /usr/lib /usr/lib/${ARCH_TRIPLET} /usr/local/lib)
else()
	set(SYSTEM_LIB_DIRS /usr/lib /usr/local/lib)
endif()

include(LyXMacros)

# Usage LYX_OPTION
# 1. parameter: option name without prefix 'LYX_'
# 2. parameter: description
# 3. parameter: default value, ON or OFF
# 4. parameter: system on which option is used: ALL, GCC, MSVC, ...


LYX_OPTION_INIT()

# Options for all compilers/systems
LYX_OPTION(CPACK            "Use the CPack management (Implies LYX_INSTALL option)" OFF ALL)
LYX_OPTION(INSTALL          "Build install projects/rules (implies a bunch of other options)" OFF ALL)
LYX_OPTION(NLS              "Enable Native Language Support (NLS)" ON ALL)
LYX_OPTION(ASPELL           "Require aspell" OFF ALL)
LYX_OPTION(ENCHANT          "Require Enchant" OFF ALL)
LYX_OPTION(HUNSPELL         "Require Hunspell" OFF ALL)
LYX_OPTION(DEVEL_VERSION    "Build developer version" OFF ALL) 
LYX_OPTION(RELEASE          "Build release version, build debug when disabled" OFF ALL)
LYX_OPTION(DEBUG            "Enforce debug build"  OFF ALL)
LYX_OPTION(NO_OPTIMIZE      "Don't use any optimization/debug flags"  OFF ALL)
LYX_OPTION(PACKAGE_SUFFIX   "Use version suffix for packaging" ON ALL)
LYX_OPTION(PCH              "Use precompiled headers" OFF ALL)
LYX_OPTION(MERGE_FILES      "Merge source files into one compilation unit" OFF ALL)
LYX_OPTION(MERGE_REBUILD    "Rebuild generated files from merged files build" OFF ALL)
LYX_OPTION(QUIET            "Don't generate verbose makefiles" OFF ALL)
LYX_OPTION(INSTALL_PREFIX   "Install path for LyX" OFF ALL)
LYX_OPTION(EXTERNAL_LIBINTL "Use external libintl" ON ALL)
LYX_OPTION(BUNDLE           "Build bundle  (experimental) " OFF ALL)

# GCC specific
LYX_OPTION(PROFILE              "Build profile version" OFF GCC)
LYX_OPTION(EXTERNAL_BOOST       "Use external boost" OFF GCC)
LYX_OPTION(PROGRAM_SUFFIX       "Append version suffix to binaries" ON GCC)
LYX_OPTION(DEBUG_GLIBC          "Enable libstdc++ debug mode" OFF GCC)
LYX_OPTION(DEBUG_GLIBC_PEDANTIC "Enable libstdc++pedantic debug mode" OFF GCC)
LYX_OPTION(STDLIB_DEBUG         "Use debug stdlib" OFF GCC)
LYX_OPTION(CONCEPT_CHECKS       "Enable concept-checks" OFF GCC)
LYX_OPTION(PROFILE              "Build with options for gprof" OFF GCC)

# MSVC specific
LYX_OPTION(CONSOLE               "Show console on Windows" ON MSVC)
LYX_OPTION(VLD                   "Use VLD with MSVC" OFF MSVC)
LYX_OPTION(WALL                  "Enable all warnings" OFF MSVC)
LYX_OPTION(CONFIGURE_CHECKS      "Also run configure checks for MSVC" OFF MSVC)
LYX_OPTION(DEPENDENCIES_DOWNLOAD "Download dependencies for MSVC 10" OFF MSVC)

# APPLE specific
LYX_OPTION(DMG                   "Build as Mac bundle, needed for .dmg  (experimental) " OFF MAC)
LYX_OPTION(COCOA                 "Use Cocoa on Mac" OFF MAC)


if(help OR HELP)
	message(STATUS)
	message(STATUS "Available options: (dis/enable with -DLYX_*=OFF/ON)")
	message(STATUS)
	LYX_OPTION_LIST_ALL(help)
	message(STATUS)
	RETURN()
endif()

# Check option dependencies

if(LYX_CPACK)
	set(LYX_INSTALL ON)
endif()

if(LYX_DMG)
	set(LYX_BUNDLE ON)
	set(LYX_CPACK ON)
endif()

if(LYX_INSTALL)
	set(LYX_NLS ON)
	if (WIN32)
		set(LYX_HUNSPELL ON)
	endif()
	set(LYX_CONSOLE OFF)
	set(LYX_PACKAGE_SUFFIX ON)
	set(LYX_RELEASE ON)
	set(LYX_PROFILE OFF)
endif()


if(LYX_MERGE_FILES)
	set(LYX_PCH OFF)
else()
	set(LYX_MERGE_REBUILD OFF)
endif()

if(LYX_DEPENDENCIES_DOWNLOAD)
	message(STATUS)
	set(LYX_DEPENDENCIES_DIR ${TOP_BINARY_DIR}/msvc2010-deps)
	message(STATUS "Using downloaded dependencies in ${LYX_DEPENDENCIES_DIR}")
	set(deps_files lyx20-deps-msvc2010.zip)
	set(deps_server http://downloads.sourceforge.net/project/lyx/Win_installers/Dependencies)
	foreach(it ${deps_files})
		set(already_downloaded already_downloaded-NOTFOUND CACHE PATH "downloaded" FORCE)
		find_file(already_downloaded ${it} "${LYX_DEPENDENCIES_DIR}/download")
		if(NOT already_downloaded)
			message(STATUS "Downloading ${it} ...")
			file(DOWNLOAD ${deps_server}/${it} ${LYX_DEPENDENCIES_DIR}/download/${it} SHOW_PROGRESS STATUS status LOG log)
			list(GET status 0 status_code)
			list(GET status 1 status_string)
			if(NOT status_code EQUAL 0)
				file(REMOVE ${LYX_DEPENDENCIES_DIR}/${it})
				message(FATAL_ERROR "error: downloading '${it}' failed. status_code: ${status_code}, status_string: ${status_string}. \nLog: ${log} ")
			endif()
			execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzf ${LYX_DEPENDENCIES_DIR}/download/${it}
		                      WORKING_DIRECTORY ${LYX_DEPENDENCIES_DIR})
		endif()
	endforeach()
	set(GNUWIN32_DIR ${LYX_DEPENDENCIES_DIR}/deps20)
endif()



message(STATUS)

set(EXECUTABLE_OUTPUT_PATH  ${TOP_BINARY_DIR}/bin)
if(WIN32)
	set(LIBRARY_OUTPUT_PATH  ${EXECUTABLE_OUTPUT_PATH})
else()
	set(LIBRARY_OUTPUT_PATH  ${TOP_BINARY_DIR}/lib)
endif()


if(UNIX OR MINGW)
	execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
	message(STATUS "Using GCC version ${GCC_VERSION}")
	if(NOT GCC_VERSION VERSION_LESS 4.4)
		set(LYX_USE_TR1 1)
		# GCC <= 4.5 does not support regex: there are linker errors
		# http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.tr1
		set(LYX_USE_TR1_REGEX 0)
	endif()
else()
	if(MSVC10)
		set(LYX_USE_TR1 1)
		#set(LYX_USE_TR1_REGEX 1) #TODO should we use it in ECMAScript mode?
	endif()
endif()


set(VERSION_INFO "CMake Build")

# Try to get some informations from configure.ac

include(LyXPaths)
file(STRINGS "${TOP_SRC_DIR}/configure.ac" _config_lines)

if(WIN32)
	set(USE_WINDOWS_PACKAGING ON)
elseif(APPLE)
	set(USE_MACOSX_PACKAGING ON)
else()
	set(USE_POSIX_PACKAGING ON)
endif()

macro(setstripped _varname _value)
	string(STRIP ${_value} _v)
	if(USE_POSIX_PACKAGING)
		string(TOLOWER ${_v} ${_varname})
	else()
		set(${_varname} ${_v})
	endif()
endmacro(setstripped)

foreach(_c_l ${_config_lines} )
	if(_c_l MATCHES "^AC_INIT\\(\([^,]+\),\([^,]+\), *\\[\([^,]+\)\\] *,\(.*\)")
		setstripped(PACKAGE_BASE ${CMAKE_MATCH_1})
		setstripped(PACKAGE_VERSION ${CMAKE_MATCH_2})
		setstripped(PACKAGE_BUGREPORT ${CMAKE_MATCH_3})
		if(PACKAGE_VERSION MATCHES "^\([0-9]+\)\\.\([0-9]+\)\(\\.\([0-9]+\)\)?.*$")
			set(LYX_MAJOR_VERSION ${CMAKE_MATCH_1})
			set(LYX_MINOR_VERSION ${CMAKE_MATCH_2})
			set(LYX_PATCH_VERSION ${CMAKE_MATCH_4})
			set(LYX_DIR_VER "LYX_DIR_${CMAKE_MATCH_1}${CMAKE_MATCH_2}x")
			set(LYX_USERDIR_VER "LYX_USERDIR_${CMAKE_MATCH_1}${CMAKE_MATCH_2}x")
			set(LYX_INSTALL_SUFFIX "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}")
		endif()
	endif()
	if(_c_l MATCHES "^AC_SUBST\\( *LYX_DATE *, *\\[\\\"(.*)\\\"\\].*")
		set(LYX_DATE "${CMAKE_MATCH_1}")
	endif()
endforeach(_c_l)

# Find the revision number and for later use
FIND_PROGRAM(LYX_SVNVERSION svnversion)
#message(STATUS "svnversion = ${LYX_SVNVERSION}")
if(LYX_SVNVERSION)
	EXECUTE_PROCESS(COMMAND ${LYX_SVNVERSION} WORKING_DIRECTORY "${TOP_SRC_DIR}" OUTPUT_VARIABLE LYX_PACKAGE_RELEASE OUTPUT_STRIP_TRAILING_WHITESPACE)
	# We use this value also to set the package-patch-value
	if(LYX_PACKAGE_RELEASE MATCHES "^\([0-9]+\)")
		set(LYX_REVISION_VERSION ${CMAKE_MATCH_1})
	endif()
else()
	set(LYX_REVISION_VERSION svn) #TODO use date
endif()


if(LYX_PROGRAM_SUFFIX)
	set(PROGRAM_SUFFIX "${LYX_INSTALL_SUFFIX}")
else()
	set(PROGRAM_SUFFIX "")
endif()


if(LYX_BUNDLE)
	set(LYX_CPACK ON)
	message(STATUS)
	message(STATUS "Bundle creation is enabled (experimental):")
	message(STATUS "    make")
	message(STATUS "    make install/strip")
	message(STATUS "    make package")
	if(APPLE)
		set(LYX_BUILD_BUNDLE MACOSX_BUNDLE)
		set(LYX_DATA_SUBDIR ${PACKAGE_BASE}${PROGRAM_SUFFIX}.app/Contents/Resources/ CACHE STRING "Bundle Contents dir" FORCE)
		set(MACOSX_BUNDLE_STARTUP_COMMAND ${PACKAGE_BASE}${PROGRAM_SUFFIX}.app)
		if(NOT LYX_INSTALL_PREFIX)
			set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/LyX CACHE PATH "Mac bundle dir" FORCE)
			set(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
		endif()
	elseif(UNIX)
		message(STATUS "To embed Qt in this bundle don't build with your system Qt:")
		message(STATUS "  - fix PATH so a other qmake is found by cmake")
		message(STATUS "  - fix LD_LIBRARY_PATH so lyx doesn't use system's Qt")
	elseif(WIN32)
		message(STATUS "A zipped-only release could be created by building the 'PACKAGE' project")
	endif()
endif()

if(LYX_INSTALL_PREFIX)
	set(CMAKE_INSTALL_PREFIX ${LYX_INSTALL_PREFIX} CACHE PATH "LyX user's choice install prefix" FORCE)
	set(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
endif()
set(LYX_INSTALL_PREFIX ${LYX_INSTALL_PREFIX} CACHE PATH "LyX user's choice install prefix" FORCE)

if(LYX_PACKAGE_SUFFIX)
	set(PACKAGE ${PACKAGE_BASE}${LYX_INSTALL_SUFFIX})
else()
	set(PACKAGE ${PACKAGE_BASE})
endif()


if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
	# see http://www.cmake.org/pipermail/cmake/2006-October/011559.html
	if (UNIX)
		# don't use the default "/usr/local"
		# but respect the user-choice on the command-line
		if(LYX_INSTALL_SUFFIX)
			set(CMAKE_INSTALL_PREFIX "/usr/local/lyx${LYX_INSTALL_SUFFIX}" CACHE PATH "LyX default install prefix" FORCE)
		else()
			set(CMAKE_INSTALL_PREFIX "/usr/local/${LYX_PROJECT}" CACHE PATH "LyX default install prefix" FORCE)
		endif()
	endif()
	if(WIN32)
		set(CMAKE_INSTALL_PREFIX LYX_INSTALLED CACHE PATH "LyX default install prefix" FORCE)
	endif()
endif()
if(IS_ABSOLUTE)
	set(CMAKE_INSTALL_PREFIX_ABSOLUTE ${CMAKE_INSTALL_PREFIX})
else()
	set(CMAKE_INSTALL_PREFIX_ABSOLUTE ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_PREFIX})
endif()



if(NOT LYX_DATA_SUBDIR)
	if (WIN32)
		set(LYX_DATA_SUBDIR "Resources/" CACHE STRING "Subdirectory for all lyx-system-data" FORCE)
	else()
		set(LYX_DATA_SUBDIR "" CACHE STRING "Subdirectory for all lyx-system-data" FORCE)
	endif()
endif()

set(LYX_ABS_INSTALLED_DATADIR "${CMAKE_INSTALL_PREFIX}")
set(LYX_LOCALEDIR "locale")
set(LYX_ABS_INSTALLED_LOCALEDIR "${LYX_ABS_INSTALLED_DATADIR}/${LYX_DATA_SUBDIR}${LYX_LOCALEDIR}")
set(LYX_ABS_TOP_SRCDIR "${TOP_SRC_DIR}")


if(LYX_INSTALL AND WIN32)
	message(STATUS "Configuring NSIS files")
	configure_file(development/Win32/packaging/installer/lyx.nsi.cmake ${CMAKE_BINARY_DIR}/installer/lyx.nsi @ONLY)
	configure_file(development/Win32/packaging/installer/settings.nsh.cmake ${CMAKE_BINARY_DIR}/installer/settings-cmake.nsh @ONLY)
	configure_file(development/Win32/packaging/installer/include/declarations.nsh.cmake ${CMAKE_BINARY_DIR}/installer/declarations-cmake.nsh @ONLY)
	message(STATUS "NSIS files are created in ${CMAKE_BINARY_DIR}/installer")
endif()

if(NOT GROUP_CODE)
	#set(GROUP_CODE "The Golden Code")
	set(GROUP_CODE flat)
endif()

# lyx's source files
set(LYX_CPP_FILES *.cpp)
set(LYX_HPP_FILES *.h)
set(LYX_MOC_FILES moc_*.cpp)

include(ProjectSourceGroup)


if(LYX_PROFILE AND NOT MSVC)
	set(CMAKE_BUILD_TYPE Profile CACHE TYPE STRING FORCE)
	set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE} -pg")
	set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS}  -pg")
else()
	set(LYX_PROFILE OFF)
endif()


if(LYX_NO_OPTIMIZE)
	set(CMAKE_BUILD_TYPE None)
	set(LYX_DEBUG OFF)
	set(LYX_RELEASE OFF)
	set(LYX_PROFILE OFF)
elseif(LYX_RELEASE)
	set(CMAKE_BUILD_TYPE Release)
	set(LYX_DEBUG OFF)
	set(LYX_PROFILE OFF)
elseif(LYX_PROFILE)
	set(CMAKE_BUILD_TYPE Profile)
	set(LYX_DEBUG OFF)
else()
	set(CMAKE_BUILD_TYPE Debug)
	set(LYX_DEBUG ON)
endif()


# When shared libs are supported enable this option
#LYX_OPTION(SHARED_LIBRARIES "Build shared libraries" OFF ALL)
if(LYX_SHARED_LIBRARIES)
	set(library_type SHARED)
else()
 	set(library_type STATIC)
endif()

if(NOT MSVC)
	if(NOT LYX_QUIET)
		set(CMAKE_VERBOSE_MAKEFILE ON)
	endif()
	set(LYX_CXX_FLAGS "-Wall -Wunused-parameter")
	if(LYX_STDLIB_DEBUG)
		set(LYX_CXX_FLAGS "${LYX_CXX_FLAGS} -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
	endif()
	if(LYX_CONCEPT_CHECKS)
		set(LYX_CXX_FLAGS "${LYX_CXX_FLAGS} -D_GLIBCPP_CONCEPT_CHECKS")
	endif()
	set(CMAKE_CXX_FLAGS       "${LYX_CXX_FLAGS} -fno-strict-aliasing " CACHE TYPE STRING FORCE)
	set(CMAKE_CXX_FLAGS_DEBUG "${LYX_CXX_FLAGS} -fno-strict-aliasing -O0 -g -D_DEBUG" CACHE TYPE STRING FORCE)
	if(MINGW)
		set(CMAKE_CXX_FLAGS_RELEASE "${LYX_CXX_FLAGS} -O2 -DNDEBUG" CACHE TYPE STRING FORCE)
	else()
		set(CMAKE_CXX_FLAGS_RELEASE "${LYX_CXX_FLAGS} -O3 -DNDEBUG" CACHE TYPE STRING FORCE)
	endif()
endif()


find_package(Qt4 REQUIRED)


include_directories(${TOP_BINARY_DIR} ${TOP_SRC_DIR}/src)

if(LYX_ASPELL)
	find_package(ASPELL)
	include_directories(${ASPELL_INCLUDE_DIR})
endif()

if(LYX_ENCHANT)
	find_package(Enchant REQUIRED)
	include_directories(${ENCHANT_INCLUDE_DIR})
endif()

if(LYX_HUNSPELL)
	find_package(Hunspell REQUIRED)
	include_directories(${HUNSPELL_INCLUDE_DIR})
endif()

if(LYX_NLS)
	FIND_PROGRAM(LYX_PYTHON_EXECUTABLE python HINTS ${GNUWIN32_DIR}/python)
	if(${LYX_PYTHON_EXECUTABLE} MATCHES "-NOTFOUND")
		message(FATAL_ERROR "Python 2.6 needed!")
	endif()
	find_package(LyXGettext REQUIRED)
	include_directories(${TOP_SRC_DIR}/po)
	add_subdirectory(po "${TOP_BINARY_DIR}/po")
endif()

if(LYX_NLS)
	if(LYX_EXTERNAL_LIBINTL)
		find_package(Libintl REQUIRED)
		if(DEFINED LIBINTL_LIBRARIES)
			# find getext when configuring
			list(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBINTL_LIBRARIES})
			# on mac use iconv also form ports
			get_filename_component(ICONV_RELATIVE_TO_LIBINTL ${LIBINTL_LIBRARIES} PATH)
		endif()
	else()
		add_subdirectory(intl "${TOP_BINARY_DIR}/intl")
	endif()
endif()

find_package(ICONV REQUIRED)
find_package(ZLIB REQUIRED)

if(LYX_EXTERNAL_BOOST)
	message(STATUS "Searching for boost")
	find_package(Boost COMPONENTS signals regex) #TODO could REQUIRED be used
	if(Boost_FOUND)
		message(STATUS "Boost found")
		message(STATUS "Boost-libs = ${Boost_LIBRARIES}")
		set(Lyx_Boost_Libraries ${Boost_LIBRARIES})
	else()
		message(FATAL_ERROR "Boost not found" ${Boost_ERROR_REASON})
	endif()
else()
	if(LYX_USE_TR1_REGEX)
		set(Lyx_Boost_Libraries boost_signals)
	else()
		set(Lyx_Boost_Libraries boost_signals boost_regex)
	endif()
	add_definitions(-DBOOST_USER_CONFIG="<config.h>")
	include_directories(${TOP_SRC_DIR}/boost)
	add_subdirectory(boost "${TOP_BINARY_DIR}/boost")
endif()




if(WIN32)
	if(NOT LYX_CONSOLE)
		set(WIN32_CONSOLE WIN32)
		set(LYX_QTMAIN_LIBRARY ${QT_QTMAIN_LIBRARY})
	endif()
	if(MSVC)
		add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -DNOMINMAX)
		# disable checked iterators for msvc release builds to get maximum speed
		set(CMAKE_CXX_FLAGS_RELEASE  "${CMAKE_CXX_FLAGS_RELEASE} /D_SECURE_SCL=0")
	else()
		add_definitions(-DWINVER=0x0500)
	endif()
endif()

message(STATUS "")
foreach(_v PACKAGE PACKAGE_VERSION
	PROGRAM_SUFFIX LYX_DATE LYX_DIR_VER LYX_USERDIR_VER
	LYX_ABS_TOP_SRCDIR
	LYX_ABS_INSTALLED_DATADIR LYX_ABS_INSTALLED_LOCALEDIR LYX_INSTALL_SUFFIX)
	if(NOT DEFINED ${_v})
		message(FATAL_ERROR "${_v} not defined")
	endif()
	string(SUBSTRING "${_v}                            " 0 28 _v1)
	message(STATUS "----- ${_v1}: ${${_v}}")
endforeach(_v)
message(STATUS "")


if(LYX_PCH)
	# PCHs not supported by cmake: http://www.cmake.org/Bug/view.php?id=1260
	# Not sure if it works for all non-msvc compilers
	include(PCHSupport_26)
	configure_file(${TOP_SRC_DIR}/${LYX_CMAKE_DIR}/pcheaders.h      ${TOP_BINARY_DIR}/pcheaders.h)
	configure_file(${TOP_SRC_DIR}/${LYX_CMAKE_DIR}/config.cpp.cmake ${TOP_BINARY_DIR}/config_pch.cpp)
	add_definitions(-DLYX_ENABLE_PCH)

	if(MSVC)
		macro(lyx_add_msvc_pch name_)
			set_source_files_properties(${${name_}_sources} PROPERTIES
				COMPILE_FLAGS "/Yuconfig.h /Fp\$(IntDir)/config.pch")
			set_source_files_properties(${TOP_BINARY_DIR}/config_pch.cpp PROPERTIES
				COMPILE_FLAGS "/Ycconfig.h /Fp\$(IntDir)/config.pch")
			set(${name_}_sources ${${name_}_sources} ${TOP_BINARY_DIR}/config_pch.cpp
				${TOP_BINARY_DIR}/pcheaders.h)
			set(CMAKE_CXX_FLAGS_DEBUG	"${CMAKE_CXX_FLAGS_DEBUG} /DLYX_PCH_STL /DLYX_PCH_BOOST /DLYX_PCH_QT4")
			set(CMAKE_CXX_FLAGS_RELEASE	"${CMAKE_CXX_FLAGS_RELEASE} /DLYX_PCH_STL /DLYX_PCH_BOOST /DLYX_PCH_QT4")
			set(CMAKE_CXX_FLAGS_MINSIZEREL	"${CMAKE_CXX_FLAGS_MINSIZEREL} /DLYX_PCH_STL /DLYX_PCH_BOOST")
		endmacro(lyx_add_msvc_pch)
		macro(lyx_add_gcc_pch name_)
		endmacro()
	else()
		macro(lyx_add_msvc_pch name_)
		endmacro()
		macro(lyx_add_gcc_pch name_)
			add_definitions(-DLYX_PCH_STL -DLYX_PCH_BOOST -DLYX_PCH_QT4)
			ADD_PRECOMPILED_HEADER(${name_} ${TOP_BINARY_DIR}/config_pch.cpp ${TOP_BINARY_DIR}/config.h.gch)
		endmacro()
	endif()
else()
	macro(lyx_add_msvc_pch)
	endmacro(lyx_add_msvc_pch)
	macro(lyx_add_gcc_pch name_)
	endmacro()
endif()


if(MSVC)

	if(LYX_VLD)
		set(vld_path ${CMAKE_CURRENT_SOURCE_DIR}/development/Win32/vld)
		add_subdirectory(${vld_path}/cmake)
		include(${vld_path}/cmake/vld.cmake) # forced include
		set(vld_dll vld)
	endif()

	if(LYX_WALL)
		# Use the highest warning level
		set(CMAKE_CXX_WARNING_LEVEL 4 CACHE TYPE STRING FORCE)

		if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
			string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
		else()
			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
		endif()

		if(CMAKE_C_FLAGS MATCHES "/W[0-4]")
			string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
		else()
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4")
		endif()

		# add here warnings which should produce an error /weXXXX
		set(MSVC_W_ERROR   "/we4101 /we4189")
		# add here warnings which should be disabled /wdXXXX
		set(MSVC_W_DISABLE "/wd4288 /wd4355 /wd4800 /wd4996 /wd4311 /wd4312 /wd4505 /wd4267 /wd4512 /wd4245 /wd4127 /wd4180 /wd4231")

		set(CMAKE_CXX_FLAGS_DEBUG      "${CMAKE_CXX_FLAGS_DEBUG} /Wp64 ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")
		set(CMAKE_CXX_FLAGS_RELEASE    "${CMAKE_CXX_FLAGS_RELEASE} /Wp64 ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")
		set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /Wp64 ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")

	else()
		set(CMAKE_CXX_WARNING_LEVEL 3 CACHE TYPE STRING FORCE)

		# add here warnings which should produce an error /weXXXX
		set(MSVC_W_ERROR   "/we4101 /we4189")
		# add here warnings which should be disabled /wdXXXX
		set(MSVC_W_DISABLE "/wd4288 /wd4355 /wd4800 /wd4996 /wd4267 /wd4180 /wd4231")

		set(CMAKE_CXX_FLAGS_DEBUG      "${CMAKE_CXX_FLAGS_DEBUG} ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")
		set(CMAKE_CXX_FLAGS_RELEASE    "${CMAKE_CXX_FLAGS_RELEASE} ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")
		set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} ${MSVC_W_ERROR} ${MSVC_W_DISABLE}")

	endif()
	set(CMAKE_CXX_FLAGS_DEBUG      "${CMAKE_CXX_FLAGS_DEBUG} /Zc:wchar_t-")
	set(CMAKE_CXX_FLAGS_RELEASE    "${CMAKE_CXX_FLAGS_RELEASE} /Zc:wchar_t-")
	set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /Zc:wchar_t-")

	message(STATUS "----- Warning level      : ${CMAKE_CXX_WARNING_LEVEL}  ${WARNING_LEVEL_MESSAGE}")
	message(STATUS "----- Warnings as errors : ${MSVC_W_ERROR}")
	message(STATUS "----- Warnings disabled  : ${MSVC_W_DISABLE}")
	message(STATUS "")
endif()


if(LYX_DEBUG_GLIBC)
	set(_GLIBCXX_DEBUG ON)
endif()

if(LYX_DEBUG_GLIBC_PEDANTIC)
	set(_GLIBCXX_DEBUG_PEDANTIC ON)
endif()

# compiler tests, config.h generation
if(MSVC AND NOT LYX_CONFIGURE_CHECKS)
	configure_file(${LYX_CMAKE_DIR}/configCompiler.h.msvc ${TOP_BINARY_DIR}/configCompiler.h)
else()
	include(${LYX_CMAKE_DIR}/ConfigureChecks.cmake)
	configure_file(${LYX_CMAKE_DIR}/configCompiler.h.cmake ${TOP_BINARY_DIR}/configCompiler.h)
endif()

configure_file(${LYX_CMAKE_DIR}/config.h.cmake ${TOP_BINARY_DIR}/config.h)

# Compute qt4-version from ${QTVERSION}
if(QTVERSION MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+).*")
	MATH(EXPR QT4_VERSION "(${CMAKE_MATCH_1}<<16)|(${CMAKE_MATCH_2}<<8)|${CMAKE_MATCH_3}")
endif()

add_subdirectory(src "${TOP_BINARY_DIR}/src")
add_subdirectory(lib/lyx2lyx "${TOP_BINARY_DIR}/lyx2lyx")
add_subdirectory(lib/scripts "${TOP_BINARY_DIR}/scripts")


if(LYX_INSTALL)
	if(${LYX_PYTHON_EXECUTABLE} MATCHES "-NOTFOUND")
		message(STATUS "Python required to create doc!")
	else()
		add_subdirectory(${LYX_CMAKE_DIR}/man "${TOP_BINARY_DIR}/man")
		add_subdirectory(${LYX_CMAKE_DIR}/doc "${TOP_BINARY_DIR}/doc")
	endif()
	include(../Install)
endif()

add_subdirectory(sourcedoc "${TOP_BINARY_DIR}/sourcedoc")

message(STATUS)
message(STATUS "Build options, switch LYX_* variables by -DLYX_*=ON or OFF:")
message(STATUS)
LYX_OPTION_LIST_ALL(used)


if(LYX_NLS)
	message(STATUS)
	message(STATUS "Building Native Language Support (LYX_NLS is set), used libraries:")
	message(STATUS)
	message(STATUS "  * intl")
	message(STATUS "     - header : ${LIBINTL_HEADER}")
	message(STATUS "     - library: ${LIBINTL_LIBRARIES}")
	message(STATUS "  * iconv")
	message(STATUS "     - header : ${ICONV_HEADER}")
	message(STATUS "     - library: ${ICONV_LIBRARY}")
	message(STATUS "  * zlib")
	message(STATUS "     - header : ${ZLIB_HEADER}")
	message(STATUS "     - library: ${ZLIB_LIBRARY}")
	message(STATUS)
endif()

include("${TOP_SRC_DIR}/${LYX_CMAKE_DIR}/LyxPackaging.cmake")

message(STATUS)