mirror of https://github.com/OpenRCT2/OpenRCT2.git
288 lines
11 KiB
CMake
288 lines
11 KiB
CMake
# CMAKE project for libopenrct2 (core OpenRCT2 component)
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cmake_minimum_required(VERSION 3.1)
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if (CMAKE_BINARY_DIR STREQUAL CMAKE_SOURCE_DIR)
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message(FATAL_ERROR "Building in-source is not supported! Create a build dir and remove ${CMAKE_SOURCE_DIR}/CMakeCache.txt")
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endif ()
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# Options
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option(STATIC "Create a static build.")
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option(USE_MMAP "Use mmap to try loading rct2's data segment into memory.")
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option(DISABLE_RCT2 "Build a standalone version, without using code and data segments from vanilla. On by default." ON)
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option(DISABLE_HTTP_TWITCH "Disable HTTP and Twitch support.")
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option(DISABLE_NETWORK "Disable multiplayer functionality. Mainly for testing.")
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option(DISABLE_TTF "Disable support for TTF provided by freetype2.")
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option(ENABLE_LIGHTFX "Enable lighting effects." ON)
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if (NOT DISABLE_RCT2)
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if (WIN32)
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message(FATAL_ERROR "DISABLE_RCT2 not supported for Windows")
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endif ()
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if (NOT FORCE32)
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message(FATAL_ERROR "DISABLE_RCT2 requires FORCE32")
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endif ()
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endif ()
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# Needed for linking with non-broken OpenSSL on Apple platforms
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if (APPLE)
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set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/usr/local/opt/openssl/lib/pkgconfig")
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endif ()
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# Third party libraries
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PKG_CHECK_MODULES(JANSSON REQUIRED jansson>=2.5)
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PKG_CHECK_MODULES(LIBZIP REQUIRED libzip>=1.0)
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PKG_CHECK_MODULES(ZLIB REQUIRED zlib)
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PKG_CHECK_MODULES(PNG libpng>=1.6)
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if (NOT PNG_FOUND)
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PKG_CHECK_MODULES(PNG libpng16)
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if (NOT PNG_FOUND)
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PKG_CHECK_MODULES(PNG libpng>=1.2)
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if (NOT PNG_FOUND)
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PKG_CHECK_MODULES(PNG REQUIRED libpng12)
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endif ()
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endif ()
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endif ()
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# Third party libraries (optional)
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if (NOT DISABLE_HTTP_TWITCH OR NOT DISABLE_NETWORK)
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PKG_CHECK_MODULES(LIBCURL REQUIRED libcurl)
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endif ()
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if (NOT DISABLE_NETWORK)
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find_package(OpenSSL 1.0.0 REQUIRED)
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endif ()
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if (NOT DISABLE_TTF)
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if (UNIX AND NOT APPLE)
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PKG_CHECK_MODULES(FONTCONFIG REQUIRED fontconfig)
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endif ()
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PKG_CHECK_MODULES(FREETYPE REQUIRED freetype2)
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endif ()
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# Sources
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file(GLOB_RECURSE OPENRCT2_CORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/*.c"
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"${CMAKE_CURRENT_LIST_DIR}/*.cpp"
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"${CMAKE_CURRENT_LIST_DIR}/*.h"
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"${CMAKE_CURRENT_LIST_DIR}/*.hpp")
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if (APPLE)
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file(GLOB_RECURSE OPENRCT2_CORE_MM_SOURCES "${CMAKE_CURRENT_LIST_DIR}/*.m")
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set_source_files_properties(${OPENRCT2_CORE_MM_SOURCES} PROPERTIES COMPILE_FLAGS "-x objective-c -fmodules")
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endif ()
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# Handle creating the rct2 text and data files on macOS and Linux
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# See details in src/openrct2/rct2/interop.c:rct2_interop_setup_segment for how the values
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# were derived.
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if (NOT DISABLE_RCT2 AND UNIX)
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set(OPENRCT2_EXE "${ROOT_DIR}/openrct2.exe")
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add_custom_command(
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OUTPUT openrct2_text
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COMMAND dd if="${OPENRCT2_EXE}" of="${CMAKE_BINARY_DIR}/openrct2_text" bs=4096 skip=1 count=1187
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DEPENDS ${OPENRCT2_EXE}
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)
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add_custom_command(
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OUTPUT openrct2_data
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COMMAND dd if="${OPENRCT2_EXE}" of="${CMAKE_BINARY_DIR}/openrct2_data" bs=4096 skip=1188 count=318
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COMMAND dd if=/dev/zero of="${CMAKE_BINARY_DIR}/openrct2_data" bs=4096 seek=318 count=2630 conv=notrunc
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COMMAND dd if="${OPENRCT2_EXE}" of="${CMAKE_BINARY_DIR}/openrct2_data" bs=4096 skip=1506 seek=2948 count=1 conv=notrunc
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DEPENDS ${OPENRCT2_EXE}
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)
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add_custom_target(segfiles DEPENDS openrct2_text openrct2_data)
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if (NOT USE_MMAP)
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set(OBJ_FORMAT "elf32-i386")
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set(LINKER_SCRIPT "ld_script_i386.xc")
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if (APPLE)
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set(RCT2_SEGMENT_LINKER_FLAGS "-sectcreate rct2_text __text ${CMAKE_BINARY_DIR}/openrct2_text -sectcreate rct2_data __data ${CMAKE_BINARY_DIR}/openrct2_data -segaddr rct2_data 0x8a4000 -segprot rct2_data rwx rwx -segaddr rct2_text 0x401000 -segprot rct2_text rwx rwx -segaddr __TEXT 0x2000000 -read_only_relocs suppress")
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else ()
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# For Linux we have to use objcopy to wrap regular binaries into a linkable
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# format. We use specific section names which are then referenced in a
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# bespoke linker script so they can be placed at predefined VMAs.
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add_custom_command(
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OUTPUT openrct2_text_section.o
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COMMAND objcopy --input binary --output ${OBJ_FORMAT} --binary-architecture i386 openrct2_text openrct2_text_section.o --rename-section .data=.rct2_text,contents,alloc,load,readonly,code
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DEPENDS segfiles
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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)
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add_custom_command(
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OUTPUT openrct2_data_section.o
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COMMAND objcopy --input binary --output ${OBJ_FORMAT} --binary-architecture i386 openrct2_data openrct2_data_section.o --rename-section .data=.rct2_data,contents,alloc,load,readonly,data
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DEPENDS segfiles
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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)
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add_custom_target(linkable_sections DEPENDS openrct2_text_section.o openrct2_data_section.o)
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set_source_files_properties(
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openrct2_text_section.o openrct2_data_section.o
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PROPERTIES
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EXTERNAL_OBJECT true
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GENERATED true
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)
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# can't use GLOB here, as the files don't exist yet at cmake-time
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set(RCT2_SECTIONS "${CMAKE_BINARY_DIR}/openrct2_data_section.o" "${CMAKE_BINARY_DIR}/openrct2_text_section.o")
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set(RCT2_SEGMENT_LINKER_FLAGS "-Wl,-T,\"${ROOT_DIR}/distribution/linux/${LINKER_SCRIPT}\"")
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endif ()
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endif ()
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elseif (USE_MMAP)
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# No dd here, can't extract data segment
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message(WARNING "Sorry, your platform is not supported, you have to extract data segment manually")
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endif ()
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# Outputs
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set(PROJECT libopenrct2)
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project(${PROJECT})
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add_library(${PROJECT} ${OPENRCT2_CORE_SOURCES} ${OPENRCT2_CORE_MM_SOURCES} ${RCT2_SECTIONS})
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set_target_properties(${PROJECT} PROPERTIES PREFIX "")
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set_target_properties(${PROJECT} PROPERTIES COMPILE_FLAGS "-Wundef")
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if (NOT DISABLE_RCT2)
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add_dependencies(${PROJECT} segfiles)
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if (NOT USE_MMAP)
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if (NOT APPLE)
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add_dependencies(${PROJECT} linkable_sections)
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endif ()
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set_target_properties(${PROJECT} PROPERTIES LINK_FLAGS ${RCT2_SEGMENT_LINKER_FLAGS})
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endif ()
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endif ()
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# Libraries
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if (STATIC)
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target_link_libraries(${PROJECT} ${JANSSON_STATIC_LIBRARIES}
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${PNG_STATIC_LIBRARIES}
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${ZLIB_STATIC_LIBRARIES}
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${LIBZIP_STATIC_LIBRARIES})
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else ()
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target_link_libraries(${PROJECT} ${JANSSON_LIBRARIES}
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${PNG_LIBRARIES}
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${ZLIB_LIBRARIES}
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${LIBZIP_LIBRARIES})
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endif ()
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if (UNIX AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "BSD")
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# Include libdl for dlopen
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target_link_libraries(${PROJECT} dl)
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endif ()
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if (NOT DISABLE_NETWORK)
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if (WIN32)
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target_link_libraries(${PROJECT} ws2_32)
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endif ()
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# our HTTP implementation requires use of threads
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set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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target_link_libraries(${PROJECT} Threads::Threads)
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if (STATIC)
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target_link_libraries(${PROJECT} ${LIBCURL_STATIC_LIBRARIES}
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${SSL_STATIC_LIBRARIES})
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else ()
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target_link_libraries(${PROJECT} ${LIBCURL_LIBRARIES}
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${OPENSSL_LIBRARIES})
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endif ()
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endif ()
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if (NOT DISABLE_TTF)
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if (STATIC)
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target_link_libraries(${PROJECT} ${FREETYPE_STATIC_LIBRARIES})
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if (UNIX AND NOT APPLE)
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target_link_libraries(${PROJECT} ${FONTCONFIG_STATIC_LIBRARIES})
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endif ()
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else ()
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target_link_libraries(${PROJECT} ${FREETYPE_LIBRARIES})
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if (UNIX AND NOT APPLE)
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target_link_libraries(${PROJECT} ${FONTCONFIG_LIBRARIES})
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endif ()
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endif ()
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endif ()
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if (UNIX OR STATIC OR ${CMAKE_SYSTEM_NAME} MATCHES "BSD")
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find_library(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c)
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target_link_libraries(${PROJECT} ${ICONV_LIBRARIES})
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endif()
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if (HAVE_DISCORD_RPC)
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target_link_libraries(libopenrct2 discord-rpc)
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endif()
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# Includes
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target_include_directories(${PROJECT} SYSTEM PRIVATE ${LIBZIP_INCLUDE_DIRS})
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target_include_directories(${PROJECT} PUBLIC ${JANSSON_INCLUDE_DIRS})
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target_include_directories(${PROJECT} PRIVATE ${PNG_INCLUDE_DIRS}
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${ZLIB_INCLUDE_DIRS})
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if (NOT DISABLE_HTTP_TWITCH OR NOT DISABLE_NETWORK)
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target_include_directories(${PROJECT} PRIVATE ${LIBCURL_INCLUDE_DIRS})
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endif ()
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if (NOT DISABLE_NETWORK)
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target_include_directories(${PROJECT} PUBLIC ${OPENSSL_INCLUDE_DIR})
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endif ()
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if (NOT DISABLE_TTF)
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target_include_directories(${PROJECT} PRIVATE ${FREETYPE_INCLUDE_DIRS})
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if (UNIX AND NOT APPLE)
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target_include_directories(${PROJECT} PRIVATE ${FONTCONFIG_INCLUDE_DIRS})
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endif ()
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endif ()
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if(APPLE)
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set(COMMON_COMPILE_OPTIONS "${COMMON_COMPILE_OPTIONS} -Wno-error=objc-method-access")
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endif()
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# Compiler flags
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set(DEBUG_LEVEL 0 CACHE STRING "Select debug level for compilation. Use value in range 0–3.")
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set(COMMON_COMPILE_OPTIONS "${COMMON_COMPILE_OPTIONS} -fstrict-aliasing -Werror -Wundef -Wmissing-declarations -Winit-self -Wall -Wno-unknown-pragmas -Wno-unused-function -Wno-missing-braces ")
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set(COMMON_COMPILE_OPTIONS "${COMMON_COMPILE_OPTIONS} -Wno-comment -Wshadow -Wmissing-declarations -Wnonnull")
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set(COMMON_COMPILE_OPTIONS "${COMMON_COMPILE_OPTIONS} -DDEBUG=${DEBUG_LEVEL}")
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# On mingw all code is already PIC, this will avoid compiler error on redefining this option
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if (NOT MINGW)
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set(COMMON_COMPILE_OPTIONS "${COMMON_COMPILE_OPTIONS} -fPIC")
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endif ()
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if (APPLE AND NOT USE_MMAP)
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set(PIE_FLAG "-fno-pie")
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else ()
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set(PIE_FLAG "-fpie")
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endif ()
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if (FORCE32)
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set(TARGET_M "-m32")
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endif ()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11 ${COMMON_COMPILE_OPTIONS} ${TARGET_M} -Wimplicit")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++14 ${COMMON_COMPILE_OPTIONS} ${TARGET_M}")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${TARGET_M}")
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# Defines
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if (USE_MMAP)
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add_definitions(-DUSE_MMAP)
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endif ()
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if (DISABLE_NETWORK)
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add_definitions(-DDISABLE_NETWORK)
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endif ()
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if (DISABLE_HTTP_TWITCH)
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add_definitions(-DDISABLE_HTTP)
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add_definitions(-DDISABLE_TWITCH)
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endif ()
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if (DISABLE_TTF)
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add_definitions(-DNO_TTF)
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endif ()
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if (ENABLE_LIGHTFX)
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add_definitions(-D__ENABLE_LIGHTFX__)
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endif ()
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if (DISABLE_RCT2)
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add_definitions(-DNO_RCT2)
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endif ()
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if (NOT DISABLE_RCT2)
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# Disable optimizations for addresses.c for all compilers, to allow optimized
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# builds without need for -fno-omit-frame-pointer
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set_source_files_properties(${CMAKE_CURRENT_LIST_DIR}/rct2/addresses.c PROPERTIES COMPILE_FLAGS -O0)
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endif ()
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if (CXX_WARN_SUGGEST_FINAL_TYPES)
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# Disable -Wsuggest-final-types via pragmas where due.
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add_definitions(-D__WARN_SUGGEST_FINAL_TYPES__)
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endif ()
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if (CXX_WARN_SUGGEST_FINAL_METHODS)
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# Disable -Wsuggest-final-methods via pragmas where due.
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add_definitions(-D__WARN_SUGGEST_FINAL_METHODS__)
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endif ()
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