On 11/25/2018 05:54 AM, Maxence Buisson via blfs-dev wrote:
Hi,
I tried to install opencv (requested for frei0r-plugins and KF5) using the instructions and it seems that the sed command is not placed where it's supposed to be.

sed -i 's/CV_RGB/cv::Scalar/' src/filter/facebl0r/facebl0r.cpp

This sed must be used for compiling frei0r-plugins and not opencv so it must look as:

In opencv:
mkdir build &&
cd    build &&

cmake -DCMAKE_INSTALL_PREFIX=/usr      \
       -DCMAKE_BUILD_TYPE=Release       \
       -DENABLE_CXX11=ON                \
       -DBUILD_PERF_TESTS=OFF           \
       -DWITH_XINE=ON                   \
       -DBUILD_TESTS=OFF                \
       -DENABLE_PRECOMPILED_HEADERS=OFF \
       -DCMAKE_SKIP_RPATH=ON            \
       -DBUILD_WITH_DEBUG_INFO=OFF      \
       -Wno-dev  ..                     &&
make

In frei0r-plugins:
sed -i 's/CV_RGB/cv::Scalar/' src/filter/facebl0r/facebl0r.cpp &&
mkdir -vp build &&
cd        build &&

cmake -DCMAKE_INSTALL_PREFIX=/usr    \
       -DCMAKE_BUILD_TYPE=Release     \
       -DOpenCV_DIR=/usr/share/OpenCV \
       -Wno-dev ..                    &&

make


Yes, you are right. We will have to put that into the book's errata. Thank you for the report.

  -- Bruce

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