I was trying to install OpenCV in my project, I followed the tutorial here. I'm running a Ubuntu 20.04.6 LTS on a WSL on Windows 10.
The problem I'm encountering is during the make command in the build directory, here's the cropped output:
[ 21%] Built target opencv_highgui_plugins
[ 21%] Built target opencv_dnn_plugins
[ 21%] Built target opencv_videoio_plugins
[ 21%] Built target ittnotify
[ 21%] Built target ippiw
[ 21%] Built target libopenjp2
[ 21%] Built target ade
[ 21%] Built target libwebp
[ 21%] Built target libprotobuf
[ 21%] Built target IlmImf
[ 21%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/parallel_impl.cpp.o
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:43,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsaveintrin.h:3:10: error: stray ‘\’ in program
3 | */\m* */\M*
| ^
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsaveintrin.h:3:16: error: stray ‘\’ in program
3 | */\m* */\M*
| ^
...
| ^
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsaveoptintrin.h:50:43: error: missing terminating " character
50 | |/\Z| \Z \Z ignore differences in Unicode "combi
| ^~~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:47,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsavesintrin.h:5:10: error: stray ‘\’ in program
5 | */\+*
| ^
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsavesintrin.h:58:13: error: stray ‘@’ in program
58 | foo\(bar\)\@=foo nothing
| ^
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:49,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsavecintrin.h:1:9: error: missing terminating ' character
1 | skeyword'.
| ^~
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsavecintrin.h:42:24: error: stray ‘\’ in program
42 | or concat \& concat \& concat
| ^
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:51,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/avxintrin.h:11:24: error: missing terminating ' character
11 | Long-time Vim users won't use menus much. But the power is in adding your own
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/avxintrin.h:1451:2: error: #endif without #if
1451 | #endif /* _AVXINTRIN_H_INCLUDED */
| ^~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:85,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/avx512vpopcntdqintrin.h:1:4: error: stray ‘`’ in program
1 | -| `
| ^
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/avx512vpopcntdqvlintrin.h:81:15: error: missing terminating " character
81 | copied to the "* register.
| ^~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:103,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/bmiintrin.h:25:22: error: missing terminating ' character
25 | is the window manager's job. But if compiled with GTK+ 2 support, Vim helps
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/bmiintrin.h:143:2: error: #endif without #if
143 | #endif /* _BMIINTRIN_H_INCLUDED */
| ^~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:105,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/bmi2intrin.h:25:9: error: missing terminating ' character
25 | Since it's a CSS, they can be rewritten using shorthand: >
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/bmi2intrin.h:109:5: error: missing terminating ' character
109 | that's not available in the plain GTK+ GUI: Interaction with the session
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:109,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/f16cintrin.h:1:33: error: too many decimal points in number
1 | *if_ole.txt* For Vim version 8.1. Last change: 2019 May 05
| ^~~~
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/f16cintrin.h:89:30: error: missing terminating ' character
89 | Twelve = Vim.Eval("6 + 6") ' Note this is a STRING
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:113,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/xtestintrin.h:5:2: error: stray ‘\’ in program
5 | \(an\_s\+\)\@<=file "file" after "an" and white space or an
| ^
...
/usr/lib/gcc/x86_64-linux-gnu/9/include/xtestintrin.h:34:6: error: stray ‘@’ in program
34 | /<\@1<=span
| ^
In file included from /usr/lib/gcc/x86_64-linux-gnu/9/include/immintrin.h:43,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/x86intrin.h:32,
from /home/andrea/Code/AI/esercitazione4-23-24/opencv/modules/core/src/parallel_impl.cpp:43:
/usr/lib/gcc/x86_64-linux-gnu/9/include/xsaveintrin.h:1:1: error: ‘cter’ does not name a type
1 | cter is taken literally or not depends on the 'magic' option and the
| ^~~~
make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/build.make:999: modules/core/CMakeFiles/opencv_core.dir/src/parallel_impl.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1703: modules/core/CMakeFiles/opencv_core.dir/all] Error 2
make: *** [Makefile:166: all] Error 2
There's also the full version here, I can't paste it entirely here since it's too long.
I tried sudo update and sudo upgrade, I tried to update the WSL, to restart it, to make clean and then retry. I also tried to comment these lines in the CMakeLists in opencv/modules/core:
ocv_add_dispatched_file_force_all(test_intrin128 TEST SSE2 SSE3 SSSE3 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX)
ocv_add_dispatched_file_force_all(test_intrin256 TEST AVX2 AVX512_SKX LASX)
ocv_add_dispatched_file_force_all(test_intrin512 TEST AVX512_SKX)
but the same error pops up, and here's the CMakeLists.
Instead of installing it from source you could just install it using:
sudo apt install libopencv-dev python3-opencv