CMakeLists.txt

# Main project build script
cmake_minimum_required(VERSION 2.8.12)

PROJECT(CataclysmDDA)

SET(CMAKE_MODULE_PATH
    ${CMAKE_MODULE_PATH}
    ${CMAKE_SOURCE_DIR}/CMakeModules
)

# Build options
option(LUA          "Lua support (required for some mods)."					"OFF")
option(TILES        "Build graphical tileset version."						"OFF")
option(CURSES       "Build curses version."							"ON" )
option(SOUND        "Support for in-game sounds & music."					"OFF")
option(RELEASE      "Disable debug. Use it for user-ready buils."				"OFF")
option(USE_HOME_DIR "Use user's home directory for save files."					"ON" )
option(LOCALIZE     "Support for language localizations. Also enable UTF support."		"ON" )
option(LANGUAGES    "Compile localization files for specified languages."			""   )
option(DYNAMIC_LINKING "Use dynamic linking. Or use static to remove MinGW dependency instead."	"ON")
option(LUA_BINARY   "Lua binary name or path. You can try to use luajit for extra speed."	"")
option(GIT_BINARY   "Git binary name or path."							"")
OPTION(PREFIX       "Location of Data,GFX, & Lua directories"                                   "")

include(GetGitRevisionDescription)
git_describe(GIT_VERSION)

IF (RELEASE)
MESSAGE("\n * Cataclysm: Dark Days Ahead is a roguelike set in a post-apocalyptic world.")
MESSAGE("   _________            __                   .__                                ")
MESSAGE("   \\_   ___ \\ _____   _/  |_ _____     ____  |  |   ___.__   ______  _____      ")
MESSAGE("   /    \\  \\/ \\__  \\  \\   __\\\\__  \\  _/ ___\\ |  |  <   |  | /  ___/ /     \\     ")
MESSAGE("   \\     \\____ / __ \\_ |  |   / __ \\_\\  \\___ |  |__ \\___  | \\___ \\ |  Y Y  \\    ")
MESSAGE("    \\______  /\(____  / |__|  \(____  / \\___  >|____/ / ____|/____  >|__|_|  /    ")
MESSAGE("           \\/      \\/             \\/      \\/        \\/          \\/       \\/     ")
MESSAGE("                               --= Dark Days Ahead =--")
MESSAGE("\n * http://en.cataclysmdda.com/\n")
ENDIF (RELEASE)

MESSAGE(STATUS "${PROJECT} build environment -- \n")

MESSAGE(STATUS "Build realm is                : ${CMAKE_SYSTEM_NAME} ${CMAKE_HOST_SYSTEM_PROCESSOR}")

if (NOT ${GIT_VERSION} MATCHES GIT-NOTFOUND)
    string(REPLACE "-NOTFOUND" "" GIT_VERSION ${GIT_VERSION})
    FILE(WRITE ${CMAKE_SOURCE_DIR}/src/version.h "\#define VERSION \"${GIT_VERSION}\"\n")
    MESSAGE(STATUS "${PROJECT_NAME} build version is : ${GIT_VERSION}\n")
    ADD_DEFINITIONS(-DGIT_VERSION=${GIT_VERSION})
ELSE (NOT ${GIT_VERSION} MATCHES GIT-NOTFOUND)
    MESSAGE("")
ENDIF(NOT ${GIT_VERSION} MATCHES GIT-NOTFOUND)

#OS Check Placeholders. Will be used for BINDIST
IF (${CMAKE_SYSTEM_NAME} MATCHES Linux)
	SET(_OS_LINUX_ 1)
ENDIF (${CMAKE_SYSTEM_NAME} MATCHES Linux)

IF (${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)
	SET(_OS_FREEBSD_ 1)
ENDIF (${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)

IF(${CMAKE_SYSTEM_NAME} MATCHES Darwin)
	SET(_OS_DARWIN_ 1)
	SET(LOCALIZE OFF)
	MESSAGE(STATUS "Disable internationalization on Darwin as it is not supported")
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES Darwin)

include(CheckCXXCompilerFlag)

#FIXME: Add dest build choice: m32 for 32 bit or m64 for 64 bit version
#add_definitions("-m32")
#SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
#SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
#SET(CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS} -m32")
#SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_CXX_FLAGS} -m32")

IF (NOT DYNAMIC_LINKING)
	SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a;.dll.a")
	SET(BUILD_SHARED_LIBRARIES OFF)
	check_cxx_compiler_flag (-static HAVE_STATIC_FLAG)
	IF(HAVE_STATIC_FLAG)
		SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static")
	ENDIF(HAVE_STATIC_FLAG)
	# Workaround for cmake link library guesser
	SET(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS)       # remove -Wl,-Bdynamic
	SET(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
	SET(CMAKE_SHARED_LIBRARY_C_FLAGS)         # remove -fPIC
	SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS)
	SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS)    # remove -rdynamic
	SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS)
ELSE (NOT DYNAMIC_LINKING)
	IF(MINGW)
		# Avoid depending on MinGW runtime DLLs
		SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgcc -static-libstdc++")
	ENDIF(MINGW)
ENDIF (NOT DYNAMIC_LINKING)

IF(${CMAKE_SYSTEM_NAME} MATCHES Windows)
	SET(_OS_WINDOWS_ 1)
	GET_FILENAME_COMPONENT(MINGW_BIN_DIRECTORY ${CMAKE_CXX_COMPILER} PATH)
	SET(RC_COMPILER_FILENAME "windres.exe")
	FIND_FILE(RC_COMPILER_PATH ${RC_COMPILER_FILENAME})
	IF(RC_COMPILER_PATH)
		MESSAGE(STATUS "Found .rc compiler: ${RC_COMPILER_PATH}")
	ENDIF(RC_COMPILER_PATH)
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES Windows)

#Sysem specific actions
IF (${CMAKE_SYSTEM_NAME} MATCHES Linux OR ${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)
    IF(NOT DATA_PREFIX)
        SET( DATA_PREFIX ${CMAKE_INSTALL_PREFIX}/share/cataclysm-dda)
    ENDIF(NOT DATA_PREFIX)
    IF(NOT LOCALE_DIR)
        SET( LOCALE_DIR ${CMAKE_INSTALL_PREFIX}/share/locale)
    ENDIF(NOT LOCALE_DIR)
    IF(NOT BIN_PREFIX)
        SET( BIN_PREFIX ${CMAKE_INSTALL_PREFIX}/bin)
    ENDIF(NOT BIN_PREFIX)
    IF(NOT DESKTOP_ENTRY_PATH)
        SET( DESKTOP_ENTRY_PATH ${CMAKE_INSTALL_PREFIX}/share/applications)
    ENDIF(NOT DESKTOP_ENTRY_PATH)
    IF(NOT PIXMAPS_ENTRY_PATH)
        SET( PIXMAPS_ENTRY_PATH ${CMAKE_INSTALL_PREFIX}/share/icons/hicolor)
    ENDIF(NOT PIXMAPS_ENTRY_PATH)
    IF(NOT PIXMAPS_UNITY_ENTRY_PATH)
        SET( PIXMAPS_UNITY_ENTRY_PATH ${CMAKE_INSTALL_PREFIX}/share/icons/ubuntu-mono-dark)
    ENDIF(NOT PIXMAPS_UNITY_ENTRY_PATH)
    IF(NOT MANPAGE_ENTRY_PATH)
        SET( MANPAGE_ENTRY_PATH ${CMAKE_INSTALL_PREFIX}/share/man)
    ENDIF(NOT MANPAGE_ENTRY_PATH)
ENDIF (${CMAKE_SYSTEM_NAME} MATCHES Linux OR ${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)

IF (${CMAKE_SYSTEM_NAME} MATCHES Windows)
    IF(NOT DATA_PREFIX)
        SET(DATA_PREFIX ${CMAKE_INSTALL_PREFIX})
    ENDIF(NOT DATA_PREFIX)
    IF(NOT LOCALE_DIR)
        SET(LOCALE_DIR ${CMAKE_INSTALL_PREFIX})
    ENDIF(NOT LOCALE_DIR)
    IF(NOT BIN_PREFIX)
        SET(BIN_PREFIX ${CMAKE_INSTALL_PREFIX})
    ENDIF(NOT BIN_PREFIX)
ENDIF (${CMAKE_SYSTEM_NAME} MATCHES Windows)


MESSAGE(STATUS "${PROJECT_NAME} build options --\n")

# Preset variables
IF (NOT LUA_BINARY)
	SET (LUA_BINARY "lua")
ENDIF (NOT LUA_BINARY)

IF(NOT LANGUAGES)
	SET (LANGUAGES cs de el es_AR es_ES fi fr it_IT ja ko pl pt_BR pt pt_PT ru sr vi zh_CN zh_TW)
ENDIF(NOT LANGUAGES)

IF (GIT_BINARY)
	SET(GIT_EXECUTABLE ${GIT_BINARY})
ELSE (GIT_BINARY)
	FIND_PACKAGE(Git)
	IF (NOT GIT_FOUND)
		MESSAGE(WARNING "Git binary not found. Build version will be set to NULL. Install Git package or use -DGIT_BINARY to set path to git binary.")
	ENDIF (NOT GIT_FOUND)
ENDIF (GIT_BINARY)

IF (PREFIX)
	ADD_DEFINITIONS(-DPREFIX=${PREFIX})
ENDIF (PREFIX)

# Can't compile curses and tiles build's at same time
IF(TILES)
    SET(CURSES OFF)
ENDIF(TILES)

# Set build types and display info
IF(RELEASE)
	MESSAGE(STATUS "CMAKE_INSTALL_PREFIX          : ${CMAKE_INSTALL_PREFIX}")
	MESSAGE(STATUS "BIN_PREFIX                    : ${BIN_PREFIX}")
	MESSAGE(STATUS "DATA_PREFIX                   : ${DATA_PREFIX}")
    IF(LOCALIZE)
        MESSAGE(STATUS "LOCALE_PATH                   : ${LOCALE_DIR}")
    ENDIF(LOCALIZE)
	MESSAGE(STATUS "DESKTOP_ENTRY_PATH            : ${DESKTOP_ENTRY_PATH}")
	MESSAGE(STATUS "PIXMAPS_ENTRY_PATH            : ${PIXMAPS_ENTRY_PATH}")
	MESSAGE(STATUS "PIXMAPS_UNITY_ENTRY_PATH      : ${PIXMAPS_UNITY_ENTRY_PATH}")
	MESSAGE(STATUS "MANPAGE_ENTRY_PATH            : ${MANPAGE_ENTRY_PATH}\n")
	SET(CMAKE_BUILD_TYPE RELEASE)
	ADD_DEFINITIONS(-DRELEASE)
	# FIXME: Removed -Werror for a while. Currently it is broken in upstream.
	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Os -std=c++11 -MMD -Wall -Wextra")
	IF(MINGW)
		# Workaround for: http://ehc.ac/p/mingw/bugs/2250/
		ADD_DEFINITIONS(-D__NO_INLINE__)
	ENDIF(MINGW)
    # Use PREFIX as storage of data,gfx,lua etc.. Usefull only on *nix OS.
    IF (PREFIX AND NOT WIN32)
	    ADD_DEFINITIONS(-DDATA_DIR_PREFIX)
    ENDIF (PREFIX AND NOT WIN32)
ELSE (RELEASE)
	MESSAGE("\n")
	MESSAGE(STATUS "Build ${PROJECT} in development mode (RELEASE=OFF) --\n")
	MESSAGE(STATUS "Binaries will be located in: " ${CMAKE_SOURCE_DIR})
	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -MMD -Wall -Wextra")
	SET(CMAKE_BUILD_TYPE DEBUG)
	IF(NOT WIN32)
		# Reduce objects and binary size to avoid 'file too big' error
		SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_DEBUG")
	ENDIF(NOT WIN32)
	SET(CMAKE_VERBOSE_MAKEFILE ON)
	# Since CataclusmDDA does not respect PREFIX for development builds
	# and has funny path handlers, we should create resulting Binaries
	# in the source redectory
	SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY
		${CMAKE_SOURCE_DIR}
		CACHE PATH "Single Directory for all Executables."
	)
	SET(BIN_PREFIX ${CMAKE_SOURCE_DIR})
ENDIF (RELEASE)

	MESSAGE(STATUS "LUA                           : ${LUA}")
IF (LUA)
	MESSAGE(STATUS "LUA_BINARY                    : ${LUA_BINARY}")
ENDIF (LUA)
	MESSAGE(STATUS "GIT_BINARY                    : ${GIT_EXECUTABLE}")
	MESSAGE(STATUS "DYNAMIC_LINKING               : ${DYNAMIC_LINKING}")
	MESSAGE(STATUS "TILES                         : ${TILES}")
	MESSAGE(STATUS "CURSES                        : ${CURSES}")
	MESSAGE(STATUS "SOUND                         : ${SOUND}")
	MESSAGE(STATUS "RELEASE                       : ${RELEASE}")
	MESSAGE(STATUS "LOCALIZE                      : ${LOCALIZE}")
	MESSAGE(STATUS "USE_HOME_DIR                  : ${USE_HOME_DIR}\n")

	MESSAGE(STATUS "LANGUAGES                     : ${LANGUAGES}\n")

	MESSAGE(STATUS "See INSTALL file for details and more info --\n")


# Force out-of-source build
IF(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
	MESSAGE(FATAL_ERROR
		"This project requires an out of source build. Remove the file 'CMakeCache.txt' found in this directory before continuing, create a separate build directory and run 'cmake [options] <srcs>' from there.\nSee INSTALL file for details and more info\n"
	)
ENDIF(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})

#SET(THREADS_USE_PTHREADS_WIN32 True)
SET(CMAKE_THREAD_PREFER_PTHREAD True)
FIND_PACKAGE(Threads REQUIRED)

# Check for build types and libraries
IF(TILES)
	# Find SDL, SDL_ttf & SDL_image for graphical install
	MESSAGE(STATUS "Searching for SDL2 library --")
	FIND_PACKAGE(SDL2)
	IF(NOT SDL2_FOUND)
        	MESSAGE(FATAL_ERROR
            		"This project requires SDL2 to be installed to be compiled in graphical mode. Please install the SDL2 development libraries, or try compiling without the -DTILES=1 for a text only compilation.\nSee INSTALL file for details and more info\n"
		)
	ENDIF(NOT SDL2_FOUND)

	IF (NOT DYNAMIC_LINKING)
		# SDL, SDL_Image, SDL_ttf deps are required for static build
		MESSAGE(STATUS "Searching for SDL deps libraries --")
		FIND_PACKAGE(Freetype REQUIRED)
		FIND_PACKAGE(PNG REQUIRED)
		FIND_PACKAGE(JPEG REQUIRED)
		FIND_PACKAGE(ZLIB REQUIRED)
		FIND_PACKAGE(BZip2 REQUIRED)
	ENDIF (NOT DYNAMIC_LINKING)

	MESSAGE(STATUS "Searching for SDL2_image library --")

	MESSAGE(STATUS "Searching for SDL2_TTF library --")
	FIND_PACKAGE(SDL2_ttf)
		IF(NOT SDL2_TTF_FOUND)
		MESSAGE(FATAL_ERROR
			"This project requires SDL2_ttf to be installed to be compiled in graphical mode. Please install the SDL2_ttf development libraries, or try compiling without the -DTILES=1 for a text only compilation.\nSee INSTALL file for details and moreinfo\n"
		)
	ENDIF(NOT SDL2_TTF_FOUND)

	MESSAGE(STATUS "Searching for SDL2_image library --\n")
	FIND_PACKAGE(SDL2_image)
	IF(NOT SDL2_IMAGE_FOUND)
        	MESSAGE(FATAL_ERROR
			"This project requires SDL2_image to be installed to be compiled in graphical mode. Please install the SDL2_image development libraries, or try compiling without the -DTILES=1 for a text only compilation.\nSee INSTALL file for details and more info\n"
		)
	ENDIF(NOT SDL2_IMAGE_FOUND)
	ADD_DEFINITIONS(-DTILES)
ENDIF(TILES)

IF(CURSES)
	# Find the ncurses library for a text based compile
	MESSAGE(STATUS "Searching for Curses library --\n")
	SET(CURSES_NEED_NCURSES TRUE)
	SET(CURSES_NEED_WIDE TRUE)
	FIND_PACKAGE(Curses)
	IF(NOT CURSES_FOUND)
		MESSAGE(FATAL_ERROR
			"This project requires ncurses to be installed to be compiled in text only mode. Please install the ncurses development libraries, or try compiling with the -DTILES=1 for a graphical compilation.\nSee INSTALL file for details and more info\n"
		)
	ENDIF(NOT CURSES_FOUND)
ENDIF(CURSES)

IF(SOUND)
	# You need TILES to be able to use SOUND
	IF(NOT TILES)
		MESSAGE(FATAL_ERROR
			"You must enable graphical support with -DTILES=1 to be able to enable sound support.\nSee INSTALL file for details and more info\n"
		)
	ENDIF(NOT TILES)

	# Sound requires SDL_mixer library
	MESSAGE(STATUS "Searching for SDL2_mixer library --\n")
	FIND_PACKAGE(SDL2_mixer)
	IF(NOT SDL2_MIXER_FOUND)
		MESSAGE(FATAL_ERROR
			"You need the SDL2_mixer development library to be able to compile with sound enabled.\nSee INSTALL file for details and more info\n"
		)
	ENDIF(NOT SDL2_MIXER_FOUND)
ENDIF(SOUND)

IF(LUA)
	FIND_PACKAGE(Lua)
	IF(NOT LUA_FOUND)
	MESSAGE(FATAL_ERROR
		"You need the Lua development library to be able to compile with Lua support.\nSee INSTALL file for details and more info\n"
	)
	ENDIF(NOT LUA_FOUND)
	ADD_DEFINITIONS(-DLUA)
ENDIF(LUA)

# Ok. Now create build and install recipes
IF(LOCALIZE)
	IF(WIN32)
		FIND_PACKAGE(Libintl)
		IF(NOT LIBINTL_FOUND)
		MESSAGE(FATAL_ERROR
			"You need the libintl development library to be able to compile with Localize support.\nSee INSTALL file for details and more info\n"
		)
		ENDIF(NOT LIBINTL_FOUND)
		FIND_PACKAGE(Iconv)
		IF(NOT ICONV_FOUND)
		MESSAGE(FATAL_ERROR
			"You need the iconv development library to be able to compile with Localize support.\nSee INSTALL file for details and more info\n"
		)
		ENDIF(NOT ICONV_FOUND)
	ENDIF(WIN32)
	add_subdirectory(lang)
	ADD_DEFINITIONS(-DLOCALIZE)
ENDIF(LOCALIZE)

IF(USE_HOME_DIR)
	ADD_DEFINITIONS(-DUSE_HOME_DIR)
ENDIF(USE_HOME_DIR)

IF(LUA)
	add_subdirectory(lua)
	add_subdirectory(src/lua)
ENDIF(LUA)

add_subdirectory(src)
add_subdirectory(data)
add_subdirectory(src/chkjson)

CONFIGURE_FILE(
	"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
	"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
	IMMEDIATE @ONLY
)

ADD_CUSTOM_TARGET(uninstall
	"${CMAKE_COMMAND}"
	-P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
)

find_program(CCACHE_FOUND ccache)
if(CCACHE_FOUND)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
endif(CCACHE_FOUND)