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* bug#42667: opencv fails to build
@ 2020-08-02  8:50 Guillaume Le Vaillant
  2020-08-10 22:10 ` Björn Höfling
  2020-10-03  8:15 ` Guillaume Le Vaillant
  0 siblings, 2 replies; 3+ messages in thread
From: Guillaume Le Vaillant @ 2020-08-02  8:50 UTC (permalink / raw)
  To: 42667

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When trying to build the opencv package , I get the following error:

--8<---------------cut here---------------start------------->8---
[ 27%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/grfmt_pxm.cpp.o
cd /tmp/guix-build-opencv-3.4.3.drv-0/build/modules/imgcodecs && /gnu/store/rn75fm7adgx3pw5j8pg3bczfqq1y17lk-gcc-7.5.0/bin/c++  -DCVAPI_EXPORTS -DHAVE_IMGCODEC_HDR -DHAVE_IMGCODEC_PXM -DHAVE_IMGCODEC_SUNRASTER -DHAVE_WEBP -D_USE_MATH_DEFINES -D__OPENCV_BUILD=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/include -I/tmp/guix-build-opencv-3.4.3.drv-0/build/modules/imgcodecs -I/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/core/include -I/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgproc/include -isystem /tmp/guix-build-opencv-3.4.3.drv-0/build -isystem /gnu/store/7xqvr2nr5g1cw9kwc0rdlhg92zg5zi44-openexr-2.5.2/include/OpenEXR  -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -fvisibility=hidden -fvisibility-inlines-hidden -Wno-deprecated-declarations -O2 -g -DNDEBUG -fPIC   -o CMakeFiles/opencv_imgcodecs.dir/src/grfmt_pxm.cpp.o -c /tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/src/grfmt_pxm.cpp
/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/src/grfmt_jpeg2000.cpp: In member function ‘bool cv::Jpeg2KDecoder::readComponent8u(uchar*, void*, int, int, int, int, int)’:
/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/src/grfmt_jpeg2000.cpp:340:71: error: lvalue required as unary ‘&’ operand
         jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
                                                                       ^
/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/src/grfmt_jpeg2000.cpp: In member function ‘bool cv::Jpeg2KDecoder::readComponent16u(short unsigned int*, void*, int, int, int, int, int)’:
/tmp/guix-build-opencv-3.4.3.drv-0/opencv-3.4.3-checkout/modules/imgcodecs/src/grfmt_jpeg2000.cpp:404:71: error: lvalue required as unary ‘&’ operand
         jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
                                                                       ^
--8<---------------cut here---------------end--------------->8---

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^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-10-03  8:17 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-08-02  8:50 bug#42667: opencv fails to build Guillaume Le Vaillant
2020-08-10 22:10 ` Björn Höfling
2020-10-03  8:15 ` Guillaume Le Vaillant

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