How to link SDL_ttf and SDL_image libraries using cmake in windows?

Question

I have trouble including and linking SDL_ttf and SDL_image to my project. I have a cmake file that works only for SDL and SDL_gfx on Clion. I guess the problem is from the cmake file. I got several errors when I build the project: undefined reference to `FUNCTION'

The libraries which I used for my project: https://github.com/satayyeb/sdl2-libraries

sdl2 folder (where library files are located) tree:

sdl2-|
     |-sdl2-image-include
     |    |-SDL_image.h
     |
     |-sdl2-image-lib
     |    |-libSDL2_image.a
     |    |-libSDL2_image.dll.a
     |    |-libSDL2_image.la
     |
     |-sdl2-ttf-include
     |    |-SDL_ttf.h
     |
     |-sdl2-ttf-lib
          |-libSDL2_ttf.a
          |-libSDL2_ttf.dll.a
          |-libSDL2_ttf.la

CMakeLists.txt :

set(SOURCE src/main.c)
set(PROJECT_NAME state.SAT)

cmake_minimum_required(VERSION 3.19)

project(${PROJECT_NAME} C)

set(CMAKE_C_STANDARD 11)

set(SDL2_INCLUDE_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-include")
set(SDL2_LIB_DIR         "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-lib")

set(SDL2_GFX_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-gfx-include")
set(SDL2_GFX_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-gfx-lib")

set(SDL2_IMAGE_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-image-include")
set(SDL2_IMAGE_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-image-lib")

set(SDL2_TTF_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-ttf-include")
set(SDL2_TTF_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-ttf-lib")

set(SDL2_FLAGS           "-mwindows -Wl,--no-undefined -static-libgcc")


add_library(SDL2       STATIC IMPORTED)
add_library(SDL2main   STATIC IMPORTED)
add_library(SDL2_GFX   STATIC IMPORTED)
add_library(SDL2_IMAGE STATIC IMPORTED)

add_library(SDL2_TTF   STATIC IMPORTED)

set_property(TARGET SDL2       PROPERTY IMPORTED_LOCATION "${SDL2_LIB_DIR}/libSDL2.a")
set_property(TARGET SDL2main   PROPERTY IMPORTED_LOCATION "${SDL2_LIB_DIR}/libSDL2main.a")
set_property(TARGET SDL2_GFX   PROPERTY IMPORTED_LOCATION "${SDL2_GFX_LIB_DIR}/libsdl-gfx.a")
set_property(TARGET SDL2_IMAGE PROPERTY IMPORTED_LOCATION "${SDL2_IMAGE_LIB_DIR}/libSDL2_image.a")
set_property(TARGET SDL2_TTF   PROPERTY IMPORTED_LOCATION "${SDL2_TTF_LIB_DIR}/libSDL2_ttf.a")


set(SDL2_LIBS SDL2 SDL2main SDL2_GFX SDL2_TTF SDL2_IMAGE m dinput8 dxguid dxerr8 user32 gdi32 winmm imm32 ole32 oleaut32 shell32 version uuid)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ${SDL2_FLAGS}")

file(GLOB_RECURSE SOURCE "src/*.c" "src/*.h")
add_executable("${PROJECT_NAME}" "${SOURCE}")

include_directories(${SDL2_INCLUDE_DIR} ${SDL2_GFX_INCLUDE_DIR} ${SDL2_IMAGE_INCLUDE_DIR} ${SDL2_TTF_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${SDL2_LIBS})

Answer 1

I found the problem:

1. In sdl2-image-lib and sdl2-ttf-lib directory there are libSDL2_image.dll.a and libSDL2_ttf.dll.a binary files that must be linked instead of libSDL2_image.a and libSDL2_ttf.a files.

2. dll files must be copied to the directory where the EXE file is located. the dll files are in bin folders of the library.

The libraries which I used for my project: https://github.com/satayyeb/sdl2-libraries

and the modified CMakeLists.txt:

set(SOURCE src/main.c)
set(PROJECT_NAME island_soldier)
cmake_minimum_required(VERSION 3.19)
project(${PROJECT_NAME} C)
set(CMAKE_C_STANDARD 11)


set(SDL2_INCLUDE_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-include")
set(SDL2_LIB_DIR         "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-lib")

set(SDL2_GFX_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-gfx-include")
set(SDL2_GFX_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-gfx-lib")

set(SDL2_IMAGE_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-image-include")
set(SDL2_IMAGE_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-image-lib")

set(SDL2_TTF_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-ttf-include")
set(SDL2_TTF_LIB_DIR     "${CMAKE_CURRENT_SOURCE_DIR}/sdl2/sdl2-ttf-lib")


set(SDL2_FLAGS   "-mwindows -Wl,--no-undefined -static-libgcc")


add_library(SDL2            STATIC IMPORTED)
add_library(SDL2main        STATIC IMPORTED)

add_library(SDL2_GFX        STATIC IMPORTED)

add_library(SDL2_IMAGE_DLL  STATIC IMPORTED)

add_library(SDL2_TTF_DLL    STATIC IMPORTED)



set_property(TARGET SDL2            PROPERTY IMPORTED_LOCATION "${SDL2_LIB_DIR}/libSDL2.a")
set_property(TARGET SDL2main        PROPERTY IMPORTED_LOCATION "${SDL2_LIB_DIR}/libSDL2main.a")

set_property(TARGET SDL2_GFX        PROPERTY IMPORTED_LOCATION "${SDL2_GFX_LIB_DIR}/libsdl-gfx.a")

set_property(TARGET SDL2_IMAGE_DLL  PROPERTY IMPORTED_LOCATION "${SDL2_IMAGE_LIB_DIR}/libSDL2_image.dll.a")

set_property(TARGET SDL2_TTF_DLL    PROPERTY IMPORTED_LOCATION "${SDL2_TTF_LIB_DIR}/libSDL2_ttf.dll.a")



set(SDL2_LIBS mingw32 SDL2 SDL2main SDL2_GFX SDL2_TTF_DLL SDL2_IMAGE_DLL m dinput8 dxguid dxerr8 user32 gdi32 winmm imm32 ole32 oleaut32 shell32 version uuid)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ${SDL2_FLAGS}")
file(GLOB_RECURSE SOURCE "src/*.c" "src/*.h")


IF(WIN32)
    SET(GUI_TYPE WIN32)
ENDIF(WIN32)
IF (APPLE)
    SET(GUI_TYPE MACOSX_BUNDLE)
ENDIF (APPLE)

add_executable("${PROJECT_NAME}" ${GUI_TYPE} "${SOURCE}")

include_directories(${SDL2_INCLUDE_DIR} ${SDL2_GFX_INCLUDE_DIR} ${SDL2_IMAGE_INCLUDE_DIR} ${SDL2_TTF_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} ${SDL2_LIBS})