A friend of mine just reported the issue of having these CMake build errors: <div

Hi Gabor, When -DLV_USE_DRAW_SDL=ON and <code cl

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Cmake build error,about lvgl/lv_port_pc_eclipse

ygramoel commented on August 18, 2024 1

I reported this issue to Gabor.

I ran into this issue while following the instructions on https://github.com/lvgl/lv_port_pc_eclipse on my Linux desktop running Mint 20.3.

This is what I did (leaving out most of the command output):

$ git clone --recursive https://github.com/littlevgl/pc_simulator_sdl_eclipse.git
...
$ sudo apt install libsdl2-dev
...
$ cmake .. -DLV_USE_DRAW_SDL=ON -DLV_USE_LIBPNG=ON -DLV_USE_LIBJPEG_TURBO=ON
...
Could NOT find SDL2_image (missing: SDL2_IMAGE_LIBRARIES)
...
$ sudo apt install libsdl2-image-dev
...
$ cmake .. -DLV_USE_DRAW_SDL=ON -DLV_USE_LIBPNG=ON -DLV_USE_LIBJPEG_TURBO=ON
...
Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
...
$ sudo apt install libjpeg-dev
...
$ cmake .. -DLV_USE_DRAW_SDL=ON -DLV_USE_LIBPNG=ON -DLV_USE_LIBJPEG_TURBO=ON
...
(normal termination - cmake worked)

The point I wanted to make is that you may want to add the extra required installs libsdl2-image-dev and libjpeg-dev in the instructions.

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XuNeo commented on August 18, 2024

Hi Gabor,
When -DLV_USE_DRAW_SDL=ON and -DLV_USE_LIBJPEG_TURBO=ON are enabled, it means to link against libsdl2_image and libjpeg_turbo.

I have included the packages need to install in CMakeLists.txt.

lv_port_pc_eclipse/CMakeLists.txt

Lines 29 to 37 in 2190f28

    
           if(LV_USE_DRAW_SDL) 
        
               set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake") 
        
               # Need to install libsdl2-image-dev 
        
               # `sudo apt install libsdl2-image-dev` 
        
               # `brew install sdl2_image` 
        
               find_package(SDL2_image REQUIRED) 
        
               target_include_directories(lvgl PUBLIC ${SDL2_IMAGE_INCLUDE_DIRS}) 
        
               target_link_libraries(main ${SDL2_IMAGE_LIBRARIES}) 
        
           endif(LV_USE_DRAW_SDL)

lv_port_pc_eclipse/CMakeLists.txt

Lines 45 to 52 in 2190f28

    
           if(LV_USE_LIBJPEG_TURBO) 
        
               # Need to install libjpeg-turbo8-dev 
        
               # `sudo apt install libjpeg-turbo8-dev` 
        
               # `brew install libjpeg-turbo` 
        
               find_package(JPEG REQUIRED) 
        
               target_include_directories(lvgl PUBLIC ${JPEG_INCLUDE_DIRS}) 
        
               target_link_libraries(main ${JPEG_LIBRARIES}) 
        
           endif(LV_USE_LIBJPEG_TURBO)

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kisvegabor commented on August 18, 2024

Thank you for the quick reply. I asked m fried to join the discussion in order to better understand the issue.

from lv_port_pc_eclipse.

kisvegabor commented on August 18, 2024

@ygramoel See #142

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Cmake build error about lv_port_pc_eclipse HOT 4 CLOSED

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	if(LV_USE_DRAW_SDL)
	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
	# Need to install libsdl2-image-dev
	# `sudo apt install libsdl2-image-dev`
	# `brew install sdl2_image`
	find_package(SDL2_image REQUIRED)
	target_include_directories(lvgl PUBLIC ${SDL2_IMAGE_INCLUDE_DIRS})
	target_link_libraries(main ${SDL2_IMAGE_LIBRARIES})
	endif(LV_USE_DRAW_SDL)

	if(LV_USE_LIBJPEG_TURBO)
	# Need to install libjpeg-turbo8-dev
	# `sudo apt install libjpeg-turbo8-dev`
	# `brew install libjpeg-turbo`
	find_package(JPEG REQUIRED)
	target_include_directories(lvgl PUBLIC ${JPEG_INCLUDE_DIRS})
	target_link_libraries(main ${JPEG_LIBRARIES})
	endif(LV_USE_LIBJPEG_TURBO)