Doesn't compile on Debian 10 (x86_64) with GCC 8.3.0 and OpenCV 4.5.2

[devilkingsatan666]

Dear all,
I was compiling the package with the following sub-modules umcommented in RELEASE.local file:

ADANDOR=$(AREA_DETECTOR)/ADAndor
ADANDOR3=$(AREA_DETECTOR)/ADAndor3
ADARAVIS=$(AREA_DETECTOR)/ADAravis
ADCSIMDETECTOR=$(AREA_DETECTOR)/ADCSimDetector
ADGENICAM=$(AREA_DETECTOR)/ADGenICam
ADPLUGINBAR=$(AREA_DETECTOR)/ADPluginBar
ADPLUGINEDGE=$(AREA_DETECTOR)/ADPluginEdge
ADPOINTGREY=$(AREA_DETECTOR)/ADPointGrey
ADSIMDETECTOR=$(AREA_DETECTOR)/ADSimDetector
ADSPINNAKER=$(AREA_DETECTOR)/ADSpinnaker
ADSUPPORT=$(AREA_DETECTOR)/ADSupport
ARAVISGIGE=$(AREA_DETECTOR)/aravisGigE
NDDRIVERSTDARRAYS=$(AREA_DETECTOR)/NDDriverStdArrays
PVADRIVER=$(AREA_DETECTOR)/pvaDriver

When it proceeded to ADSimDetector, it failed and produced the following error:

make -C ./simDetectorNoIOC install
make[3]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC'
make -C ./configure install
make[4]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/configure'
perl -CSD /opt/epics/R70.5/base/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../..
mkdir -p O.Common
make -C O.linux-x86_64 -f ../Makefile TOP=../..
T_A=linux-x86_64 install
make[5]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/configure/O.linux-x86_64'
perl -CSD /opt/epics/R70.5/base/bin/linux-x86_64/convertRelease.pl checkRelease
make[5]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/configure/O.linux-x86_64'
make[4]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/configure'
make -C ./simDetectorNoIOCApp install
make[4]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp'
make -C ./src install
make[5]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp/src'
perl -CSD /opt/epics/R70.5/base/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../../..
mkdir -p O.Common
make -C O.linux-x86_64 -f ../Makefile TOP=../../..
T_A=linux-x86_64 install
make[6]: Entering directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp/src/O.linux-x86_64'
/usr/bin/g++ -D_GNU_SOURCE -D_DEFAULT_SOURCE -D_X86_64_ -DUNIX -Dlinux -O3 -g -Wall -DUSE_TYPED_RSET -mtune=generic -m64 -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include -I../../../../../include -I/opt/epics/R70.5/synApps/support/asyn-R4-41/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADSupport/include/os/Linux -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADSupport/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADCore/include -I/opt/epics/R70.5/synApps/support/autosave-R5-10-2/include/os/Linux -I/opt/epics/R70.5/synApps/support/autosave-R5-10-2/include -I/opt/epics/R70.5/synApps/support/busy-R1-7-3/include -I/opt/epics/R70.5/synApps/support/calc-R3-7-4/include -I/opt/epics/R70.5/synApps/support/seq-2-2-8/include -I/opt/epics/R70.5/synApps/support/sscan-master/include -I/opt/epics/R70.5/synApps/support/iocStats-3-1-16/include/os/Linux -I/opt/epics/R70.5/synApps/support/iocStats-3-1-16/include -I/opt/epics/R70.5/synApps/support/alive-R1-3-1/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADPluginEdge/include -I/opt/epics/R70.5/base/include/compiler/gcc -I/opt/epics/R70.5/base/include/os/Linux -I/opt/epics/R70.5/base/include -MM -MF simDetectorNoIOC.d ../simDetectorNoIOC.cpp
/usr/bin/g++ -D_GNU_SOURCE -D_DEFAULT_SOURCE -D_X86_64_ -DUNIX -Dlinux -O3 -g -Wall -DUSE_TYPED_RSET -mtune=generic -m64 -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include -I../../../../../include -I/opt/epics/R70.5/synApps/support/asyn-R4-41/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADSupport/include/os/Linux -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADSupport/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADCore/include -I/opt/epics/R70.5/synApps/support/autosave-R5-10-2/include/os/Linux -I/opt/epics/R70.5/synApps/support/autosave-R5-10-2/include -I/opt/epics/R70.5/synApps/support/busy-R1-7-3/include -I/opt/epics/R70.5/synApps/support/calc-R3-7-4/include -I/opt/epics/R70.5/synApps/support/seq-2-2-8/include -I/opt/epics/R70.5/synApps/support/sscan-master/include -I/opt/epics/R70.5/synApps/support/iocStats-3-1-16/include/os/Linux -I/opt/epics/R70.5/synApps/support/iocStats-3-1-16/include -I/opt/epics/R70.5/synApps/support/alive-R1-3-1/include -I/opt/epics/R70.5/synApps/support/areaDetector-master/ADPluginEdge/include -I/opt/epics/R70.5/base/include/compiler/gcc -I/opt/epics/R70.5/base/include/os/Linux -I/opt/epics/R70.5/base/include -c ../simDetectorNoIOC.cpp
make[6]: *** No rule to make target '../../../lib/linux-x86_64/libopencv_imgproc.a', needed by 'simDetectorNoIOCApp'. Stop.
make[6]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp/src/O.linux-x86_64'
make[5]: *** [/opt/epics/R70.5/base/configure/RULES_ARCHS:58: install.linux-x86_64] Error 2
make[5]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp/src'
make[4]: *** [/opt/epics/R70.5/base/configure/RULES_DIRS:85: src.install] Error 2
make[4]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC/simDetectorNoIOCApp'
make[3]: *** [/opt/epics/R70.5/base/configure/RULES_DIRS:85: simDetectorNoIOCApp.install] Error 2
make[3]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs/simDetectorNoIOC'
make[2]: *** [/opt/epics/R70.5/base/configure/RULES_DIRS:85: simDetectorNoIOC.install] Error 2
make[2]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector/iocs'
make[1]: *** [/opt/epics/R70.5/base/configure/RULES_DIRS:85: iocs.install] Error 2
make[1]: Leaving directory '/opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector'
make: *** [/opt/epics/R70.5/base/configure/RULES_DIRS:85: /opt/epics/R70.5/synApps/support/areaDetector-master/ADSimDetector.install] Error 2

Any suggestions are welcomed. Thank you in advance for your replies.

[MarkRivers]

When you installed OpenCV 4.5.2 did it install a file called libopencv_imgproc.so? If so, where is it? Perhaps it is not in a location which is searched by default and you need to add that search path.

Did you change these lines in areaDetector/configure/CONFIG_SITE.local?

# OPENCV is required for the ADPluginEdge plugin
WITH_OPENCV     = NO
OPENCV_EXTERNAL = YES
#OPENCV_INCLUDE =
#OPENCV_LIB     =

[devilkingsatan666]

Thank you so much for your reply. Yes, I did configure the settings for OpenCV as following in CONFIG_SITE.local.linux-x86_64 file before compiling:

# HDF5_LIB and HDF5_INCLUDE variables should not be defined if using the hdf5 system library in a default location
#HDF5         = /usr/local64
#HDF5_LIB     = $(HDF5)/lib
#HDF5_INCLUDE = $(HDF5)/include

# SZIP_LIB and SZIP_INCLUDE variables should not be defined if using the szip system library in a default location
#SZIP           = /usr/local64
#SZIP_LIB       = $(SZIP)/lib
#SZIP_INCLUDE   = $(SZIP)/include

# GRAPHICSMAGICK_LIB should not be defined if using the GraphicsMagick system library in a default location
#GRAPHICSMAGICK         = /usr/local64
#GRAPHICSMAGICK_EXTERNAL=YES
# If GRAPHICSMAGICK_EXTERNAL=YES then typically GRAPHICSMAGICK_INCLUDE must be defined or Magick++ include files won't be found
#GRAPHICSMAGICK_INCLUDE = /usr/include/GraphicsMagick
# If GRAPHICSMAGICK_EXTERNAL=YES then typically GRAPHICSMAGICK_PREFIX_SYMBOLS must be NO
#GRAPHICSMAGICK_PREFIX_SYMBOLS = NO
# The package version of GraphicsMagick on Centos 7 requires JPEG 6.2, but ADSupport has JPEG 9b
# Must use system version of JPEG and TIFF
#JPEG_EXTERNAL=YES
#TIFF_EXTERNAL=YES

# BOOST_LIB and BOOST_INCLUDE variables should not be defined if using the boost system library in a default location
WITH_BOOST     = YES
BOOST          = /usr
BOOST_LIB     = $(BOOST)/lib/x86_64-linux-gnu
BOOST_INCLUDE = $(BOOST)/include/boost

# OPENCV_LIB and OPENCV_INCLUDE variables should not be defined if using the opencv system library in a default location
WITH_OPENCV     = YES
OPENCV          = /usr/local
OPENCV_LIB     = $(OPENCV)/lib
OPENCV_INCLUDE = $(OPENCV)/include/opencv4

The CONFIG_SITE.local file:

# To build the IOC applications set BUILD_IOCS to YES
# Otherwise set it to NO
BUILD_IOCS=YES

# To build areaDetector so that it only depends on libCom and asyn set the following flag
#EPICS_LIBCOM_ONLY=YES

# Configure which 3rd party libraries to use and where to find them.
# For each library XXX the following definitions are used:
# WITH_XXX      Build the plugins and drivers that require this library.
#               Build the source code for this library in ADSupport if XXX_EXTERNAL=NO.
# XXX_EXTERNAL  If NO then build the source code for this library in ADSupport.
# XXX_INCLUDE   If XXX_EXTERNAL=YES then this is the path to the include files for XXX.
#               However, if XXX is a system library whose include files are in a
#               standard include search path then do not define XXX_INCLUDE.
# XXX_LIB       If XXX_EXTERNAL=YES then this is the path to the library files for XXX.
#               However, if XXX is a system library whose library files in a
#               standard library search path then do not define XXX_LIB.

# The exception to the above is XML2.
# As of ADCORE R3-0 libxml2 is required for ADCore so WITH_XML2 is not supported
# but the other XML2 flags are supported.

# The default defined here is appropriate for most Linux systems.

# BOOST is required for the ADCore/pluginTests unit tests
WITH_BOOST     = NO
BOOST_EXTERNAL = YES
#BOOST_LIB     =
#BOOST_INCLUDE =

# Uncomment this line if you want to use STATIC Linking when building
# ADCore/pluginTests unit tests.
#BOOST_USE_STATIC_LINK=YES

# EPICS PVA is required for NDPluginPva, pvaDriver, and qsrv
#WITH_PVA  = YES

# WITH_QSRV controls whether IOCs are built with support for qsrv.
# This is separate from WITH_PVA to allow PVA to be enabled but QSRV to be disabled.
# This is needed on 3.14.12 where PVA is supported but QSRV is not.
# Note that if WITH_QSRV=YES then WITH_PVA must also be YES
WITH_QSRV = YES

# BLOSC is required to use the blosc compressors in the HDF5 plugin
WITH_BLOSC     = YES
BLOSC_EXTERNAL = NO
#BLOSC_INCLUDE =
#BLOSC_LIB     =

# BITSHUFFLE is required to use the bitshuffle/LZ4 decompressors in the ADEiger driver
# It can also be used to generate shareable libraries for the HDF5 compressor/decompressor
WITH_BITSHUFFLE     = YES
BITSHUFFLE_EXTERNAL = NO

# GraphicsMagick is required for NDFileMagick and the URL driver.
WITH_GRAPHICSMAGICK     = YES
GRAPHICSMAGICK_EXTERNAL = NO
# GraphicsMagick defines many global symbols, and one of these (SetImage) conflicts with a symbol
# in the Andor vendor library.  GraphickMagick provides a solution by allowing all external library
# symbols to be prefixed with "Gm".  Enable using this by default.  However, if a system library
# is used it may not be built with this option so this line should be commented out.
GRAPHICSMAGICK_PREFIX_SYMBOLS = YES
#GRAPHICSMAGICK_INCLUDE =
#GRAPHICSMAGICK_LIB     =

# HDF5 is required for the NDFileHDF5 and NDFileNexus plugins
WITH_HDF5     = YES
HDF5_EXTERNAL = NO
#HDF5_INCLUDE =
#HDF5_LIB     =

# JSON is required for the NDPluginBadPixel plugin
# The JSON parser requires C++11 and does not work on vxWorks 9.4
WITH_JSON     = YES

# JPEG is required for the NDFileJPEG and NDFileTIFF plugins
WITH_JPEG     = YES
JPEG_EXTERNAL = NO
#JPEG_INCLUDE =
#JPEG_LIB     =

# netCDF is required for the NDFileNetCDF plugin
WITH_NETCDF     = YES
NETCDF_EXTERNAL = NO
#NETCDF_INCLUDE =
#NETCDF_LIB     =

# NEXUS is required for the NDFileNexus plugin
WITH_NEXUS     = YES
NEXUS_EXTERNAL = NO
#NEXUS_INCLUDE =
#NEXUS_LIB     =

# OPENCV is required for the ADPluginEdge plugin
WITH_OPENCV     = NO
OPENCV_EXTERNAL = YES
#OPENCV_INCLUDE =
#OPENCV_LIB     =

# SZIP is required for the NDFileHDF5 and NDFileNexus plugins.
# This may be optional in the future.
WITH_SZIP     = YES
SZIP_EXTERNAL = NO
#SZIP_INCLUDE =
#SZIP_LIB     =

# TIFF is required for the NDFileTIFF plugin.
WITH_TIFF     = YES
TIFF_EXTERNAL = NO
#TIFF_INCLUDE =
#TIFF_LIB     =

# XML2 is required for ADCore so there is no WITH_XML2.
XML2_EXTERNAL = NO
#XML2_INCLUDE =
#XML2_LIB     =

# ZLIB is required for the NDFileHDF5 and NDFileNexus plugins.
# This may be optional in the future.
WITH_ZLIB     = YES
ZLIB_EXTERNAL = NO
#ZLIB_INCLUDE =
#ZLIB_LIB     =

# ARAVIS is required for aravisGigE and ADAravis
# Only available on Linux
ARAVIS_LIB      = /usr/local/lib/x86_64-linux-gnu
ARAVIS_INCLUDE  = /usr/local/include/aravis-0.8
# Location of GLIB include files and libraries.  This is needed for aravis.
# Our system has include files for glib-2.0 in 2 different places
GLIB_INCLUDE = /usr/include/glib-2.0 /usr/lib/x86_64-linux-gnu/glib-2.0/include
glib-2.0_DIR = /usr/lib/x86_64-linux-gnu

# The definitions above can be overridden in the following files.
# The files are searched in this order, with the last definition being used.
#    CONFIG_SITE.local.$(OS_CLASS)
#    CONFIG_SITE.local.$(EPICS_HOST_ARCH)
#    CONFIG_SITE.local.$(EPICS_HOST_ARCH).$(T_A)

The package the error message requires:

ultrafast@archiver:/opt/epics/R70.5/synApps/support/areaDetector-master$ ls /usr/local/lib
cmake                             libopencv_dnn.so.4.5             libopencv_imgcodecs.so                  libopencv_quality.a                  libopencv_text.so.4.5.2
libopencv_alphamat.a              libopencv_dnn.so.4.5.2           libopencv_imgcodecs.so.4.5              libopencv_quality.so                 libopencv_tracking.a
libopencv_alphamat.so             libopencv_dnn_superres.a         libopencv_imgcodecs.so.4.5.2            libopencv_quality.so.4.5             libopencv_tracking.so
libopencv_alphamat.so.4.5         libopencv_dnn_superres.so        libopencv_img_hash.a                    libopencv_quality.so.4.5.2           libopencv_tracking.so.4.5
libopencv_alphamat.so.4.5.2       libopencv_dnn_superres.so.4.5    libopencv_img_hash.so                   libopencv_rapid.a                    libopencv_tracking.so.4.5.2
libopencv_aruco.a                 libopencv_dnn_superres.so.4.5.2  libopencv_img_hash.so.4.5               libopencv_rapid.so                   libopencv_video.a
libopencv_aruco.so                libopencv_dpm.a                  libopencv_img_hash.so.4.5.2             libopencv_rapid.so.4.5               libopencv_videoio.a
libopencv_aruco.so.4.5            libopencv_dpm.so                 libopencv_imgproc.a                     libopencv_rapid.so.4.5.2             libopencv_videoio.so
libopencv_aruco.so.4.5.2          libopencv_dpm.so.4.5             libopencv_imgproc.so                    libopencv_reg.a                      libopencv_videoio.so.4.5
libopencv_barcode.a               libopencv_dpm.so.4.5.2           libopencv_imgproc.so.4.5                libopencv_reg.so                     libopencv_videoio.so.4.5.2
libopencv_barcode.so              libopencv_face.a                 libopencv_imgproc.so.4.5.2              libopencv_reg.so.4.5                 libopencv_video.so
libopencv_barcode.so.4.5          libopencv_face.so                libopencv_intensity_transform.a         libopencv_reg.so.4.5.2               libopencv_video.so.4.5
libopencv_barcode.so.4.5.2        libopencv_face.so.4.5            libopencv_intensity_transform.so        libopencv_rgbd.a                     libopencv_video.so.4.5.2
libopencv_bgsegm.a                libopencv_face.so.4.5.2          libopencv_intensity_transform.so.4.5    libopencv_rgbd.so                    libopencv_videostab.a
libopencv_bgsegm.so               libopencv_features2d.a           libopencv_intensity_transform.so.4.5.2  libopencv_rgbd.so.4.5                libopencv_videostab.so
libopencv_bgsegm.so.4.5           libopencv_features2d.so          libopencv_line_descriptor.a             libopencv_rgbd.so.4.5.2              libopencv_videostab.so.4.5
libopencv_bgsegm.so.4.5.2         libopencv_features2d.so.4.5      libopencv_line_descriptor.so            libopencv_saliency.a                 libopencv_videostab.so.4.5.2
libopencv_bioinspired.a           libopencv_features2d.so.4.5.2    libopencv_line_descriptor.so.4.5        libopencv_saliency.so                libopencv_viz.a
libopencv_bioinspired.so          libopencv_flann.a                libopencv_line_descriptor.so.4.5.2      libopencv_saliency.so.4.5            libopencv_viz.so
libopencv_bioinspired.so.4.5      libopencv_flann.so               libopencv_mcc.a                         libopencv_saliency.so.4.5.2          libopencv_viz.so.4.5
libopencv_bioinspired.so.4.5.2    libopencv_flann.so.4.5           libopencv_mcc.so                        libopencv_shape.a                    libopencv_viz.so.4.5.2
libopencv_calib3d.a               libopencv_flann.so.4.5.2         libopencv_mcc.so.4.5                    libopencv_shape.so                   libopencv_wechat_qrcode.a
libopencv_calib3d.so              libopencv_freetype.a             libopencv_mcc.so.4.5.2                  libopencv_shape.so.4.5               libopencv_wechat_qrcode.so
libopencv_calib3d.so.4.5          libopencv_freetype.so            libopencv_ml.a                          libopencv_shape.so.4.5.2             libopencv_wechat_qrcode.so.4.5
libopencv_calib3d.so.4.5.2        libopencv_freetype.so.4.5        libopencv_ml.so                         libopencv_stereo.a                   libopencv_wechat_qrcode.so.4.5.2
libopencv_ccalib.a                libopencv_freetype.so.4.5.2      libopencv_ml.so.4.5                     libopencv_stereo.so                  libopencv_xfeatures2d.a
libopencv_ccalib.so               libopencv_fuzzy.a                libopencv_ml.so.4.5.2                   libopencv_stereo.so.4.5              libopencv_xfeatures2d.so
libopencv_ccalib.so.4.5           libopencv_fuzzy.so               libopencv_objdetect.a                   libopencv_stereo.so.4.5.2            libopencv_xfeatures2d.so.4.5
libopencv_ccalib.so.4.5.2         libopencv_fuzzy.so.4.5           libopencv_objdetect.so                  libopencv_stitching.a                libopencv_xfeatures2d.so.4.5.2
libopencv_core.a                  libopencv_fuzzy.so.4.5.2         libopencv_objdetect.so.4.5              libopencv_stitching.so               libopencv_ximgproc.a
libopencv_core.so                 libopencv_gapi.a                 libopencv_objdetect.so.4.5.2            libopencv_stitching.so.4.5           libopencv_ximgproc.so
libopencv_core.so.4.5             libopencv_gapi.so                libopencv_optflow.a                     libopencv_stitching.so.4.5.2         libopencv_ximgproc.so.4.5
libopencv_core.so.4.5.2           libopencv_gapi.so.4.5            libopencv_optflow.so                    libopencv_structured_light.a         libopencv_ximgproc.so.4.5.2
libopencv_cvv.a                   libopencv_gapi.so.4.5.2          libopencv_optflow.so.4.5                libopencv_structured_light.so        libopencv_xobjdetect.a
libopencv_cvv.so                  libopencv_hdf.a                  libopencv_optflow.so.4.5.2              libopencv_structured_light.so.4.5    libopencv_xobjdetect.so
libopencv_cvv.so.4.5              libopencv_hdf.so                 libopencv_phase_unwrapping.a            libopencv_structured_light.so.4.5.2  libopencv_xobjdetect.so.4.5
libopencv_cvv.so.4.5.2            libopencv_hdf.so.4.5             libopencv_phase_unwrapping.so           libopencv_superres.a                 libopencv_xobjdetect.so.4.5.2
libopencv_datasets.a              libopencv_hdf.so.4.5.2           libopencv_phase_unwrapping.so.4.5       libopencv_superres.so                libopencv_xphoto.a
libopencv_datasets.so             libopencv_hfs.a                  libopencv_phase_unwrapping.so.4.5.2     libopencv_superres.so.4.5            libopencv_xphoto.so
libopencv_datasets.so.4.5         libopencv_hfs.so                 libopencv_photo.a                       libopencv_superres.so.4.5.2          libopencv_xphoto.so.4.5
libopencv_datasets.so.4.5.2       libopencv_hfs.so.4.5             libopencv_photo.so                      libopencv_surface_matching.a         libopencv_xphoto.so.4.5.2
libopencv_dnn.a                   libopencv_hfs.so.4.5.2           libopencv_photo.so.4.5                  libopencv_surface_matching.so        ocaml
libopencv_dnn_objdetect.a         libopencv_highgui.a              libopencv_photo.so.4.5.2                libopencv_surface_matching.so.4.5    opencv4
libopencv_dnn_objdetect.so        libopencv_highgui.so             libopencv_plot.a                        libopencv_surface_matching.so.4.5.2  pkgconfig
libopencv_dnn_objdetect.so.4.5    libopencv_highgui.so.4.5         libopencv_plot.so                       libopencv_text.a                     python2.7
libopencv_dnn_objdetect.so.4.5.2  libopencv_highgui.so.4.5.2       libopencv_plot.so.4.5                   libopencv_text.so                    python3.7
libopencv_dnn.so                  libopencv_imgcodecs.a            libopencv_plot.so.4.5.2                 libopencv_text.so.4.5                x86_64-linux-gnu