configure_file(${hedgewars_SOURCE_DIR}/hedgewars/proto.inc.in ${CMAKE_CURRENT_BINARY_DIR}/proto.inc)

find_package(SDL)

find_package(SDL_image)

find_package(SDL_net)

find_package(SDL_ttf)

find_package(SDL_mixer)

#SOURCE AND PROGRAMS SECTION 

set(fpc_tryexe fpc)

set(hwengine_project ${hedgewars_SOURCE_DIR}/hedgewars/hwengine.pas)

set(	engine_sources

	${hwengine_project}

	SDLh.pas

	uAI.pas

	uAIActions.pas

	uAIAmmoTests.pas

	uAIMisc.pas

	uAmmos.pas

	uChat.pas

	uCollisions.pas

	uConsole.pas

	uConsts.pas

	uFloat.pas

	uGame.pas

	uGears.pas

	uIO.pas

	uKeys.pas

	uLand.pas

	uLandGraphics.pas

	uLandObjects.pas

	uLandTemplates.pas

	uLandTexture.pas

	uLocale.pas

	uMisc.pas

	uRandom.pas

	uSHA.pas

	uSound.pas

	uStats.pas

	uStore.pas

	uTeams.pas

	uTriggers.pas

	uVisualGears.pas

	uWorld.pas

	CCHandlers.inc

	GSHandlers.inc

	HHHandlers.inc

	SinTable.inc

	options.inc

	${CMAKE_CURRENT_BINARY_DIR}/proto.inc

	)

find_program(fpc_executable ${fpc_tryexe})

if(fpc_executable)

	 exec_program(${fpc_executable} ARGS "-h" OUTPUT_VARIABLE fpc_output)

endif(fpc_executable)

set(noexecstack_flags "-k-z" "-knoexecstack")

file(WRITE ${EXECUTABLE_OUTPUT_PATH}/checkstack.pas "begin end.")

exec_program(${fpc_executable} ${EXECUTABLE_OUTPUT_PATH}

	ARGS ${noexecstack_flags} checkstack.pas

	OUTPUT_VARIABLE noout

	RETURN_VALUE testnoexecstack

	)

if(${testnoexecstack})

	set (noexecstack_flags "")

endif(${testnoexecstack})

if(APPLE)

	string(REGEX MATCH "[pP][pP][cC]+" powerpc_build "${CMAKE_OSX_ARCHITECTURES}")

	string(REGEX MATCH "[iI]386+" i386_build "${CMAKE_OSX_ARCHITECTURES}")

	string(REGEX MATCH "[xX]86_64+" x86_64_build "${CMAKE_OSX_ARCHITECTURES}")

	if(powerpc_build)

		set(powerpc_build "powerpc")

	endif()

endif(APPLE)

#PASCAL DETECTION SECTION

string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" fpc_version "${fpc_output}")

if(fpc_version)

	string(REGEX REPLACE "([0-9]+)\\.[0-9]+\\.[0-9]+" "\\1" fpc_vers_major "${fpc_version}")

	string(REGEX REPLACE "[0-9]+\\.([0-9]+)\\.[0-9]+" "\\1" fpc_vers_minor "${fpc_version}")

	string(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" fpc_vers_patch "${fpc_version}")

	message(STATUS "Freepascal version detected: ${fpc_vers_major}.${fpc_vers_minor}.${fpc_vers_patch}")

	math(EXPR fpc_ver "${fpc_vers_major}*10000 + ${fpc_vers_minor}*100 + ${fpc_vers_patch}")

	if(fpc_ver LESS "020200")

		message(FATAL_ERROR "Minimum required version of FreePascal is 2.2.0")

	elseif(APPLE AND i386_build AND fpc_ver LESS "020400")

		message(FATAL_ERROR "Minimum required version of FreePascal is 2.4.0 for building 64 bit applications!")

	endif()

else()

	message(FATAL_ERROR "No Pascal compiler found!")

endif()

set(pascal_compiler ${fpc_executable})

set(pascal_compiler_flags ${noexecstack_flags} ${pascal_compiler_flags_cmn} ${hwengine_project})

#DEPENDECIES AND EXECUTABLES SECTION

IF(APPLE)

#let's build sdlmain, which is absent from the framework

	find_package(SDL REQUIRED)

	set(CMAKE_OSX_ARCHITECTURES "x86_64;i386;ppc7400")	

	set(LIBRARY_OUTPUT_PATH ${EXECUTABLE_OUTPUT_PATH})

	include_directories(${SDL_INCLUDE_DIR})

	link_libraries(${SDL_LIBRARY})

	add_library (SDLmain STATIC SDLMain.m)

ENDIF(APPLE)

IF(NOT APPLE)

#here is the standard command for any system

	add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/hwengine${CMAKE_EXECUTABLE_SUFFIX}"

		COMMAND "${pascal_compiler}"

		ARGS ${pascal_compiler_flags}

		MAIN_DEPENDENCY ${hwengine_project}

		DEPENDS ${engine_sources}

		)

ELSE()

#these are the dependencies for building a universal binary on Mac OS X

	foreach (build_arch ${powerpc_build} ${i386_build} ${x86_64_build})

		set(lipo_args_list "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}" ${lipo_args_list})

		add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}"

			COMMAND "${pascal_compiler}"

			ARGS ${pascal_compiler_flags} -ohwengine.${build_arch} -P${build_arch}

			MAIN_DEPENDENCY ${hwengine_project}

			DEPENDS ${engine_sources} SDLmain

			)

		add_custom_target(hwengine.${build_arch} ALL DEPENDS "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}")

	endforeach()

	add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/hwengine"

		COMMAND "lipo"

		ARGS ${lipo_args_list} -create -output ${EXECUTABLE_OUTPUT_PATH}/hwengine

		DEPENDS ${lipo_args_list}

		)

ENDIF()

add_custom_target(hwengine ALL DEPENDS "${EXECUTABLE_OUTPUT_PATH}/hwengine${CMAKE_EXECUTABLE_SUFFIX}")

install(PROGRAMS "${EXECUTABLE_OUTPUT_PATH}/hwengine${CMAKE_EXECUTABLE_SUFFIX}" DESTINATION ${target_dir})