freetype + harfbuzz cmake example

CMakeLists.txt

cmake_minimum_required(VERSION 3.0)
project(freetype_harfbuzz)

message(STATUS "-------------------------------------------------------------------")

execute_process(
    COMMAND git init .
    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})

execute_process(
    COMMAND git submodule add https://github.com/freetype/freetype third-party/freetype
    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
set(FREETYPE_INCLUDE_DIR_ft2build ${CMAKE_CURRENT_LIST_DIR}/third-party/freetype/include CACHE PATH "")
set(FREETYPE_INCLUDE_DIR_freetype2 ${CMAKE_CURRENT_LIST_DIR}/third-party/freetype/include CACHE PATH "")
set(FREETYPE_LIBRARY freetype CACHE PATH "")

execute_process(
    COMMAND git submodule add https://github.com/harfbuzz/harfbuzz third-party/harfbuzz
    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
set(HarfBuzz_INCLUDE_DIR ${CMAKE_CURRENT_LIST_DIR}/third-party/harfbuzz/src CACHE PATH "")
set(HarfBuzz_LIBRARY harfbuzz CACHE PATH "")

message(STATUS "-------------------------------------------------------------------")

set(FT_REQUIRE_HARFBUZZ ON CACHE BOOL "")
add_subdirectory(third-party/freetype)

message(STATUS "-------------------------------------------------------------------")

set(HB_HAVE_FREETYPE ON CACHE BOOL "")
set(HB_BUILD_SUBSET OFF CACHE BOOL "")
add_subdirectory(third-party/harfbuzz)

message(STATUS "-------------------------------------------------------------------")

file(WRITE ${CMAKE_CURRENT_LIST_DIR}/main.c [==[
#include <freetype/freetype.h>
#include <hb.h>
#include <hb-ft.h>

int main() {
    FT_New_Face(NULL, NULL, 0, NULL);
    hb_ft_face_create(NULL, NULL);
}
]==])

add_executable(freetype_harfbuzz main.c)
target_link_libraries(freetype_harfbuzz PRIVATE freetype harfbuzz)