I want to include opencv library in bitcoin core.
I created the depends/packages/opencv.mk file and added them.
package=opencv $(package)_version=70bbf17b133496bd7d54d034b0f94bd869e0e810 $(package)_download_path=https://github.com/opencv/opencv/archive $(package)_file_name=$($(package)_version).tar.gz $(package)_sha256_hash=74e2250fcac2a51996be85f46e2aac386e31b4faaf6a9aa6bae94d0fbb4102e7 $(package)_build_subdir=build
define $(package)_preprocess_cmds mkdir build endef
define $(package)_config_cmds $($(package)_cmake) -DCMAKE_C_FLAGS="$$($(1)_cflags) -Wl,--build-id=none" -DCMAKE_SKIP_RPATH="ON" -DCMAKE_EXE_LINKER_FLAGS="-static" -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" -DCMAKE_CXX_FLAGS="$$($(1)_cxxflags) -std=c++14" -DBUILD_opencv_flann=OFF -DBUILD_opencv_ml=OFF -DBUILD_opencv_video=OFF -DBUILD_opencv_shape=OFF -DBUILD_opencv_videoio=OFF -DBUILD_opencv_highgui=OFF -DBUILD_opencv_objdetect=OFF -DBUILD_opencv_superres=OFF -DBUILD_opencv_ts=OFF -DBUILD_opencv_features2d=OFF -DBUILD_opencv_calib3d=OFF -DBUILD_opencv_stitching=OFF -DBUILD_opencv_videostab=OFF -D INSTALL_C_EXAMPLES=OFF -D INSTALL_PYTHON_EXAMPLES=OFF -DBUILD_SHARED_LIBS=OFF DBUILD_STATIC_LIBS=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON .. endef
define $(package)_build_cmds $(MAKE) endef
define $(package)_stage_cmds $(MAKE) DESTDIR=$($(package)_staging_dir) install endef
I also added the library in depends/packages/packages.mk file.
packages:=boost libevent opencv
In src/Makefile.am I added:
LIBS += -lopencv_imgcodecs -lopencv_imgproc -lopencv_core -lopencv_photo
but ld throws too many "undefined reference" errors and won't compile. Where am I doing wrong?
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