[Debian-med-packaging] Bug#922589: FTBFS against opencv 4.0.1 (exp)

[Andreas Tille]

Hi again,
I seriously need help to port the code to OpenCV 4.
Unfortunately I did not found a porting guide.
Could you help?
Kind regards
    Andreas.

On Fri, Jan 24, 2020 at 04:09:31PM +0100, Andreas Tille wrote:
> On Tue, Jan 07, 2020 at 05:15:14PM +0100, Samuel Thibault wrote:
> > > > pkg-config file has been marked deprecated by upstream.
> > > 
> > > I admit I have no idea what to do now.  Any hint?
> > 
> > Apparently there is a opencv4.pc file?
> 
> With this patch[1] opencv4 is detected - but the code is not compatible
> with opencv4.  I get lots of errors like this:
> 
> ...
> g++ -DHAVE_CONFIG_H -I.  -Isrc/processor/headers/ -DINSTALLDIR='"/usr/share/opencfu"' -pthread -I/usr/include/gtkmm-2.4 -I/usr/lib/x86_64-linux-gnu/gtkmm-2.4/include -I/usr/include/atkmm-1.6 -I/usr/include/gtk-unix-print-2.0 -I/usr/include/gtk-2.0 -I/usr/include/gdkmm-2.4 -I/usr/lib/x86_64-linux-gnu/gdkmm-2.4/include -I/usr/include/giomm-2.4 -I/usr/lib/x86_64-linux-gnu/giomm-2.4/include -I/usr/include/pangomm-1.4 -I/usr/lib/x86_64-linux-gnu/pangomm-1.4/include -I/usr/include/cairomm-1.0 -I/usr/lib/x86_64-linux-gnu/cairomm-1.0/include -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/ pango-1.0 -I/usr/include/fribidi -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/glibmm-2.4 -I/usr/lib/x86_64-linux-gnu/glibmm-2.4/include -I/usr/include/sigc++-2.0 -I/usr/  lib/x86_64-linux-gnu/sigc++-2.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -Isrc/gui/headers/ -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/opencv4/opencv -I/usr/include/     opencv4 -fopenmp -Isrc/ -Wall   -g -O2 -fdebug-prefix-map=/build/opencfu-3.9.0=. -fstack-protector-strong -Wformat -Werror=format-security -c -o src/processor/src/opencfu-ArgumentParser.o `test -f 'src/        processor/src/ArgumentParser.cpp' || echo './'`src/processor/src/ArgumentParser.cpp
> In file included from src/processor/headers/ProcessingOptions.hpp:8,
>                  from src/processor/headers/ArgumentParser.hpp:5,
>                  from src/main.cpp:21:
> src/processor/headers/MaskROI.hpp: In constructor 'MaskROI::MaskROI(const string&)':
> src/processor/headers/MaskROI.hpp:16:29: error: 'CV_LOAD_IMAGE_GRAYSCALE' was not declared in this scope
>    16 |             cv::imread(path,CV_LOAD_IMAGE_GRAYSCALE).copyTo(m_original_mat);
>       |                             ^~~~~~~~~~~~~~~~~~~~~~~
> src/processor/headers/MaskROI.hpp: In constructor 'MaskROI::MaskROI(cv::Mat, int)':
> src/processor/headers/MaskROI.hpp:25:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
>    25 |             if(typepp != MASK_TYPE_NONE)
>       |             ^~
> src/processor/headers/MaskROI.hpp:27:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
>    27 |                 img.copyTo(m_mat);
>       |                 ^~~
> In file included from src/processor/headers/ArgumentParser.hpp:5,
>                  from src/main.cpp:21:
> src/processor/headers/ProcessingOptions.hpp: In member function 'bool ProcessingOptions::setImage(std::string)':
> src/processor/headers/ProcessingOptions.hpp:114:46: error: 'CV_LOAD_IMAGE_ANYDEPTH' was not declared in this scope
>   114 |             cv::Mat tmpImg = cv::imread(str, CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_COLOR);
>       |                                              ^~~~~~~~~~~~~~~~~~~~~~
> src/processor/headers/ProcessingOptions.hpp:114:71: error: 'CV_LOAD_IMAGE_COLOR' was not declared in this scope
>   114 |             cv::Mat tmpImg = cv::imread(str, CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_COLOR);
>       |                                                                       ^~~~~~~~~~~~~~~~~~~
> ...
> 
> 
> When trying to build opencfu.  Is there any short guideline how to port from
> opencv < 4  to opencv version 4?
> 
> Any help would be appreciated
> 
>      Andreas,
> 
> 
> [1] https://salsa.debian.org/med-team/opencfu/blob/master/debian/patches/0017_opencv4.patch 
> 
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> 
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