cmake_minimum_required(VERSION 3.14)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
# See docs/release_checklist.md
set(MAJOR_VERSION 2)
set(MINOR_VERSION 20)
set(MICRO_VERSION 2)
set(SDL_REQUIRED_VERSION 2.0.10)
# For historical reasons this is 15.0.0 rather than the expected 1.0.0
set(DYLIB_COMPATIBILITY_VERSION "15.0.0")
include(PrivateSdlFunctions)
sdl_calculate_derived_version_variables()
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL_ttf source code and call cmake from there")
endif()
project(SDL2_ttf
LANGUAGES C
VERSION "${FULL_VERSION}"
)
message(STATUS "Configuring ${PROJECT_NAME} ${PROJECT_VERSION}")
# Set defaults preventing destination file conflicts
set(SDL2TTF_DEBUG_POSTFIX "d"
CACHE STRING "Name suffix for debug builds")
mark_as_advanced(SDL2TTF_DEBUG_POSTFIX)
# Assume MSVC projects don't have a package manager and need vendored dependencies (by default).
# Most other platforms have some kind of package manager.
# FIXME: consider a package manager such as conan/vcpkg instead of vendoring
if(MSVC)
set(vendored_default TRUE)
else()
set(vendored_default FALSE)
endif()
include(CMakeDependentOption)
include(CMakePackageConfigHelpers)
include(GNUInstallDirs)
include(CheckSymbolExists)
option(CMAKE_POSITION_INDEPENDENT_CODE "Build static libraries with -fPIC" ON)
option(BUILD_SHARED_LIBS "Build the library as a shared library" ON)
option(SDL2TTF_SAMPLES "Build the SDL2_ttf sample program(s)" ON)
option(SDL2TTF_INSTALL "Enable SDL2_ttf install target" ON)
option(SDL2TTF_VENDORED "Use vendored third-party libraries" ${vendored_default})
# For style consistency, create a SDL2TTF_FREETYPE CMake variable. This variable is NOT configurable.
set(SDL2TTF_FREETYPE ON)
set(SDL2TTF_FREETYPE_VENDORED "${SDL2TTF_VENDORED}")
option(SDL2TTF_HARFBUZZ "Use harfbuzz to improve text shaping" OFF)
set(SDL2TTF_HARFBUZZ_VENDORED "${SDL2TTF_VENDORED}")
# Save BUILD_SHARED_LIBS variable
set(SDL2TTF_BUILD_SHARED_LIBS "${BUILD_SHARED_LIBS}")
if(SDL2TTF_BUILD_SHARED_LIBS)
set(sdl2_ttf_export_name SDL2_ttf)
set(sdl2_ttf_install_name_infix shared)
set(sdl2_target_name SDL2::SDL2)
else()
set(sdl2_ttf_export_name SDL2_ttf-static)
set(sdl2_ttf_install_name_infix static)
set(sdl2_target_name SDL2::SDL2-static)
endif()
sdl_find_sdl2(${sdl2_target_name} ${SDL_REQUIRED_VERSION})
# Enable large file support on 32-bit glibc, so that the vendored libraries
# can access files with large inode numbers
check_symbol_exists("__GLIBC__" "stdlib.h" LIBC_IS_GLIBC)
if (LIBC_IS_GLIBC AND CMAKE_SIZEOF_VOID_P EQUAL 4)
add_compile_definitions(_FILE_OFFSET_BITS=64)
endif()
add_library(SDL2_ttf
SDL_ttf.c
SDL_ttf.h
)
add_library(SDL2_ttf::${sdl2_ttf_export_name} ALIAS SDL2_ttf)
target_include_directories(SDL2_ttf PUBLIC
"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/SDL2>"
)
target_compile_definitions(SDL2_ttf PRIVATE
BUILD_SDL
SDL_BUILD_MAJOR_VERSION=${MAJOR_VERSION}
SDL_BUILD_MINOR_VERSION=${MINOR_VERSION}
SDL_BUILD_MICRO_VERSION=${MICRO_VERSION}
)
target_link_libraries(SDL2_ttf PRIVATE $<BUILD_INTERFACE:${sdl2_target_name}>)
if(WIN32 AND SDL2TTF_BUILD_SHARED_LIBS)
target_sources(SDL2_ttf PRIVATE
version.rc
)
endif()
set_target_properties(SDL2_ttf PROPERTIES
DEFINE_SYMBOL DLL_EXPORT
PUBLIC_HEADER SDL_ttf.h
EXPORT_NAME ${sdl2_ttf_export_name}
C_VISIBILITY_PRESET "hidden"
)
if(NOT ANDROID)
set_target_properties(SDL2_ttf PROPERTIES
DEBUG_POSTFIX "${SDL2TTF_DEBUG_POSTFIX}"
)
if(APPLE)
# the SOVERSION property corresponds to the compatibility version and VERSION corresponds to the current version
# https://cmake.org/cmake/help/latest/prop_tgt/SOVERSION.html#mach-o-versions
set_target_properties(SDL2_ttf PROPERTIES
SOVERSION "${DYLIB_COMPATIBILITY_VERSION}"
VERSION "${DYLIB_CURRENT_VERSION}"
)
else()
set_target_properties(SDL2_ttf PROPERTIES
SOVERSION "${LT_MAJOR}"
VERSION "${LT_VERSION}"
)
endif()
endif()
if(SDL2TTF_BUILD_SHARED_LIBS AND (APPLE OR (UNIX AND NOT ANDROID)))
add_custom_command(TARGET SDL2_ttf POST_BUILD
COMMAND "${CMAKE_COMMAND}" -E create_symlink "$<TARGET_SONAME_FILE_NAME:SDL2_ttf>" "libSDL2_ttf$<$<CONFIG:Debug>:${SDL2TTF_DEBUG_POSTFIX}>$<TARGET_FILE_SUFFIX:SDL2_ttf>"
# BYPRODUCTS "libSDL2_ttf$<$<CONFIG:Debug>:${SDL2TTF_DEBUG_POSTFIX}>$<TARGET_FILE_SUFFIX:SDL2_ttf>" # Needs CMake 3.20
WORKING_DIRECTORY "${PROJECT_BINARY_DIR}"
)
endif()
if(SDL2TTF_BUILD_SHARED_LIBS)
if(WIN32 OR OS2)
set_target_properties(SDL2_ttf PROPERTIES
PREFIX ""
)
endif()
if(OS2)
# OS/2 doesn't support a DLL name longer than 8 characters.
set_target_properties(SDL2_ttf PROPERTIES
OUTPUT_NAME "SDL2ttf"
)
elseif(UNIX AND NOT ANDROID)
set_target_properties(SDL2_ttf PROPERTIES
OUTPUT_NAME "SDL2_ttf-${LT_RELEASE}"
)
endif()
endif()
if(SDL2TTF_BUILD_SHARED_LIBS)
# Use `Compatible Interface Properties` to ensure a shared SDL2_ttf is linked to a shared SDL2 library
set_property(TARGET SDL2_ttf PROPERTY INTERFACE_SDL2_SHARED ${SDL2TTF_BUILD_SHARED_LIBS})
set_property(TARGET SDL2_ttf APPEND PROPERTY COMPATIBLE_INTERFACE_BOOL SDL2_SHARED)
endif()
set(INSTALL_EXTRA_TARGETS)
set(PC_LIBS)
set(PC_REQUIRES)
# Build freetype and harfbuzz as a static library
set(BUILD_SHARED_LIBS OFF)
if(SDL2TTF_HARFBUZZ)
if(SDL2TTF_HARFBUZZ_VENDORED)
message(STATUS "${PROJECT_NAME}: Using vendored harfbuzz library")
# HB_BUILD_UTILS variable is used by harfbuzz
set(HB_BUILD_UTILS OFF CACHE BOOL "harfbuzz build utils" FORCE)
# SKIP_INSTALL_LIBRARIES variable is used by harfbuzz
set(SKIP_INSTALL_LIBRARIES ON CACHE BOOL "harfbuzz install option" FORCE)
# HB_HAVE_FREETYPE variable is used by harfbuzz
set(HB_HAVE_FREETYPE ${SDL2TTF_FREETYPE} CACHE BOOL "harfbuzz freetype helpers" FORCE)
if(NOT EXISTS "${PROJECT_SOURCE_DIR}/external/harfbuzz/CMakeLists.txt")
message(FATAL_ERROR "No harfbuzz sources found. Install a harfbuzz development package or run the download script in the external folder.")
endif()
add_subdirectory(external/harfbuzz EXCLUDE_FROM_ALL)
# harfbuzz is a c++ project, enable c++ here to ensure linking to the c++ standard library
enable_language(CXX)
if(NOT SDL2TTF_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS harfbuzz)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:harfbuzz>)
endif()
if(NOT TARGET harfbuzz::harfbuzz)
add_library(harfbuzz::harfbuzz ALIAS harfbuzz)
endif()
else()
message(STATUS "${PROJECT_NAME}: Using system harfbuzz library")
find_package(harfbuzz REQUIRED)
list(APPEND PC_REQUIRES harfbuzz)
endif()
target_compile_definitions(SDL2_ttf PRIVATE TTF_USE_HARFBUZZ=1)
target_link_libraries(SDL2_ttf PRIVATE harfbuzz::harfbuzz)
endif()
if(SDL2TTF_FREETYPE)
if(SDL2TTF_FREETYPE_VENDORED)
message(STATUS "${PROJECT_NAME}: Using vendored freetype library")
# FT_DISABLE_ZLIB variable is used by freetype
set(FT_DISABLE_ZLIB ON CACHE BOOL "freetype zlib option")
# FT_DISABLE_BZIP2 variable is used by freetype
set(FT_DISABLE_BZIP2 ON CACHE BOOL "freetype bzip2 option")
# FT_DISABLE_PNG variable is used by freetype
set(FT_DISABLE_PNG ON CACHE BOOL "freetype png option")
# FT_DISABLE_BROTLI variable is used by freetype
set(FT_DISABLE_BROTLI ON CACHE BOOL "freetype option")
if(SDL2TTF_HARFBUZZ)
# FT_DISABLE_HARFBUZZ variable is used by freetype
set(FT_DISABLE_HARFBUZZ OFF CACHE BOOL "freetype harfbuzz option" FORCE)
# FT_REQUIRE_HARFBUZZ variable is used by freetype
set(FT_REQUIRE_HARFBUZZ ON CACHE BOOL "freetype harfbuzz option" FORCE)
else()
# FT_DISABLE_HARFBUZZ variable is used by freetype
set(FT_DISABLE_HARFBUZZ ON CACHE BOOL "freetype harfbuzz option" FORCE)
# FT_REQUIRE_HARFBUZZ variable is used by freetype
set(FT_REQUIRE_HARFBUZZ OFF CACHE BOOL "freetype harfbuzz option" FORCE)
endif()
if(NOT EXISTS "${PROJECT_SOURCE_DIR}/external/freetype/CMakeLists.txt")
message(FATAL_ERROR "No freetype sources found. Install a freetype development package or run the download script in the external folder.")
endif()
add_subdirectory(external/freetype EXCLUDE_FROM_ALL)
if(NOT TARGET Freetype::Freetype)
add_library(Freetype::Freetype ALIAS freetype)
endif()
if(NOT SDL2TTF_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS freetype)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:freetype>)
endif()
else()
message(STATUS "${PROJECT_NAME}: Using system freetype library")
find_package(Freetype REQUIRED)
list(APPEND PC_REQUIRES freetype2)
endif()
target_link_libraries(SDL2_ttf PRIVATE Freetype::Freetype)
endif()
# Restore BUILD_SHARED_LIBS variable
set(BUILD_SHARED_LIBS ${SDL2TTF_BUILD_SHARED_LIBS})
set_target_properties(SDL2_ttf PROPERTIES
DEFINE_SYMBOL DLL_EXPORT
PUBLIC_HEADER SDL_ttf.h
EXPORT_NAME ${sdl2_ttf_export_name}
C_VISIBILITY_PRESET "hidden"
)
if (NOT ANDROID)
set_target_properties(SDL2_ttf PROPERTIES
DEBUG_POSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
endif()
if (APPLE)
# TODO: Use DYLIB_COMPATIBILITY_VERSION, DYLIB_CURRENT_VERSION here
elseif (UNIX AND NOT APPLE AND NOT ANDROID)
set_target_properties(SDL2_ttf PROPERTIES
SOVERSION "${LT_MAJOR}"
VERSION "${LT_VERSION}"
)
endif()
if (BUILD_SHARED_LIBS)
if (WIN32 OR OS2)
set_target_properties(SDL2_ttf PROPERTIES
PREFIX ""
)
endif()
if (OS2)
# OS/2 doesn't support a DLL name longer than 8 characters.
set_target_properties(SDL2_ttf PROPERTIES
OUTPUT_NAME "SDL2ttf"
)
elseif (UNIX AND NOT APPLE AND NOT ANDROID)
set_target_properties(SDL2_ttf PROPERTIES
OUTPUT_NAME "SDL2_ttf-${LT_RELEASE}"
)
endif()
endif()
# Restore BUILD_SHARED_LIBS variable
set(BUILD_SHARED_LIBS "${SDL2TTF_BUILD_SHARED_LIBS}")
if(SDL2TTF_INSTALL)
install(
TARGETS SDL2_ttf
EXPORT SDL2_ttfTargets
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}" COMPONENT devel
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}" COMPONENT library
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT library
PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/SDL2" COMPONENT devel
)
if(INSTALL_EXTRA_TARGETS)
install(TARGETS ${INSTALL_EXTRA_TARGETS}
EXPORT SDL2_ttfTargets
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}" COMPONENT devel
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}" COMPONENT library
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT library
PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}" COMPONENT devel
)
endif()
if(WIN32 AND NOT MINGW)
set(PKG_PREFIX "cmake")
else()
set(PKG_PREFIX "${CMAKE_INSTALL_LIBDIR}/cmake/SDL2_ttf")
endif()
configure_package_config_file(SDL2_ttfConfig.cmake.in SDL2_ttfConfig.cmake
INSTALL_DESTINATION "${PKG_PREFIX}"
)
write_basic_package_version_file("${PROJECT_BINARY_DIR}/SDL2_ttfConfigVersion.cmake"
VERSION ${FULL_VERSION}
COMPATIBILITY AnyNewerVersion
)
install(
FILES
"${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttfConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttfConfigVersion.cmake"
DESTINATION ${PKG_PREFIX}
COMPONENT devel
)
install(EXPORT SDL2_ttfTargets
FILE SDL2_ttf-${sdl2_ttf_install_name_infix}-targets.cmake
NAMESPACE SDL2_ttf::
DESTINATION "${PKG_PREFIX}"
COMPONENT devel
)
if(SDL2TTF_BUILD_SHARED_LIBS)
# Only create a .pc file for a shared SDL2_ttf
set(prefix "${CMAKE_INSTALL_PREFIX}")
set(exec_prefix "\${prefix}")
set(libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
set(PACKAGE "${PROJECT_NAME}")
set(VERSION ${FULL_VERSION})
set(SDL_VERSION ${SDL_REQUIRED_VERSION})
string(JOIN " " PC_REQUIRES ${PC_REQUIRES})
string(JOIN " " PC_LIBS ${PC_LIBS})
configure_file("${PROJECT_SOURCE_DIR}/SDL2_ttf.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf.pc.intermediate" @ONLY)
file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf-$<CONFIG>.pc" INPUT "${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf.pc.intermediate")
set(PC_DESTDIR)
if(CMAKE_SYSTEM_NAME MATCHES FreeBSD)
# FreeBSD uses ${PREFIX}/libdata/pkgconfig
set(PC_DESTDIR "libdata/pkgconfig")
else()
set(PC_DESTDIR "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif()
# Only install a SDL2_ttf.pc file in Release mode
install(CODE "
# FIXME: use file(COPY_FILE) if CMake 3.21+
execute_process(COMMAND \"${CMAKE_COMMAND}\" -E copy \"${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf-$<CONFIG>.pc\"
\"${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf.pc\")
file(INSTALL DESTINATION \"\${CMAKE_INSTALL_PREFIX}/${PC_DESTDIR}\"
TYPE FILE
FILES \"${CMAKE_CURRENT_BINARY_DIR}/SDL2_ttf.pc\")" CONFIG Release)
endif()
if(SDL2TTF_BUILD_SHARED_LIBS AND (APPLE OR (UNIX AND NOT ANDROID)))
install(FILES
"${PROJECT_BINARY_DIR}/libSDL2_ttf$<$<CONFIG:Debug>:${SDL2TTF_DEBUG_POSTFIX}>$<TARGET_FILE_SUFFIX:SDL2_ttf>"
DESTINATION "${CMAKE_INSTALL_LIBDIR}"
COMPONENT devel
)
endif()
install(FILES "LICENSE.txt"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/licenses/${PROJECT_NAME}"
COMPONENT library
)
endif()
if(SDL2TTF_SAMPLES)
add_executable(glfont glfont.c)
add_executable(showfont showfont.c)
find_package(SDL2main QUIET)
set(OpenGL_GL_PREFERENCE GLVND)
find_package(OpenGL)
if(TARGET OpenGL::OpenGL)
target_compile_definitions(glfont PRIVATE HAVE_OPENGL)
target_link_libraries(glfont PRIVATE OpenGL::OpenGL)
elseif(TARGET OpenGL::GL)
target_compile_definitions(glfont PRIVATE HAVE_OPENGL)
target_link_libraries(glfont PRIVATE OpenGL::GL)
endif()
foreach(prog glfont showfont)
if(MINGW)
target_link_libraries(${prog} PRIVATE mingw32)
target_link_options(${prog} PRIVATE -mwindows)
endif()
target_link_libraries(${prog} PRIVATE SDL2_ttf::${sdl2_ttf_export_name})
if(TARGET SDL2::SDL2main)
target_link_libraries(${prog} PRIVATE SDL2::SDL2main)
endif()
target_link_libraries(${prog} PRIVATE ${sdl2_target_name})
endforeach()
endif()
add_library(SDL2::ttf INTERFACE IMPORTED GLOBAL)
set_target_properties(SDL2::ttf PROPERTIES
INTERFACE_LINK_LIBRARIES "SDL2_ttf"
)
if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.17")
set_target_properties(SDL2::ttf PROPERTIES
DEPRECATION "Use SDL2_ttf::SDL2_ttf or SDL2_ttf::SDL2_ttf-static instead"
)
endif()