undefined reference to `__wrap_longjmp',when i use imread() in example/esp_opencv_tests and when i start `idf.py build`,it will break and come out that,how can i fix or whether if I cmake n incomplete library？I'm looking forward to hearing from you.thanks!

Question

undefined reference to `__wrap_longjmp',when i use imread() in example/esp_opencv_tests and when i start `idf.py build`,it will break and come out that,how can i fix or whether if I cmake n incomplete library？I'm looking forward to hearing from you.thanks!

ifve opened this issue 2 years ago · comments

ifve commented 2 years ago

Dujuniorrr · Answer 1 · Mon May 15 2023 03:06:20 GMT+0800 (China Standard Time)

espressif/esp-idf#10496 (comment) look this. work for me

ucfncouch · Answer 2 · Thu Jun 22 2023 19:24:43 GMT+0800 (China Standard Time)

**Dujuniorrr ** commented May 14, 2023 •

I cannot figure out how to get this working. I have tried doing what this comment says and it is not working. Have you found an alternative method? I am basically trying to use imwrite() to save an image and running into this undefined reference to _wrap_longjmp problem.

nopnop2002 · Answer 3 · Mon Jan 22 2024 07:25:30 GMT+0800 (China Standard Time)

You need to change main/CMakeLists.txt.

#add_prebuilt_library(libpng "opencv/3rdparty/liblibpng.a")
add_prebuilt_library(libpng "opencv/3rdparty/liblibpng.a" PRIV_REQUIRES esp_rom)