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|
# SPDX-FileCopyrightText: 2012-2021 Istituto Italiano di Tecnologia (IIT)
# SPDX-FileCopyrightText: 2009 Benoit Rat
# SPDX-License-Identifier: BSD-3-Clause
#[=======================================================================[.rst:
FindOpenCV
----------
Find OpenCV - variables set::
OpenCV_FOUND
OpenCV_LIBRARIES
OpenCV_INCLUDE_DIRS
This script is a combination from multiple sources that use
different variable names; the names are reconciled at the end
of the script.
.. todo:: Check if this module is still needed with recent CMake releases.
.. todo:: Check if the license is correct
#]=======================================================================]
###########################################################
# Find OpenCV Library
# See http://sourceforge.net/projects/opencvlibrary/
#----------------------------------------------------------
#
## 1: Setup:
# The following variables are optionally searched for defaults
# OpenCV_DIR: Base directory of OpenCv tree to use.
#
## 2: Variable
# The following are set after configuration is done:
#
# OpenCV_FOUND
# OpenCV_LIBS
# OpenCV_INCLUDE_DIR
# OpenCV_VERSION (OpenCV_VERSION_MAJOR, OpenCV_VERSION_MINOR, OpenCV_VERSION_PATCH)
#
#
# Deprecated variable are used to maintain backward compatibility with
# the script of Jan Woetzel (2006/09): www.mip.informatik.uni-kiel.de/~jw
# OpenCV_INCLUDE_DIRS
# OpenCV_LIBRARIES
# OpenCV_LINK_DIRECTORIES
#
## 3: Version
#
# 2010/04/07 Benoit Rat, Correct a bug when OpenCVConfig.cmake is not found.
# 2010/03/24 Benoit Rat, Add compatibility for when OpenCVConfig.cmake is not found.
# 2010/03/22 Benoit Rat, Creation of the script.
#
#
# tested with:
# - OpenCV 2.1: MinGW, MSVC2008
# - OpenCV 2.0: MinGW, MSVC2008, GCC4
#
#
## 4: Licence:
#
# SPDX-FileCopyrightText: 2009 Benoit Rat
# CopyPolicy: LGPLv2.1
#
#----------------------------------------------------------
# Lorenzo Natale -- Feb 2011
# Improve compatibility with OpenCV package in Ubuntu 10.10
# Lorenzo Natale -- March 2011
# Removing OpenCV_INCLUDE_DIRS from required arguments
# Since not all version of OpenCV set OpenCV_INCLUDE_DIRS. Problem detected with OpenCV 2.0 OpenCVConfig.cmake
# directly calls INCLUDE_DIRECTORIES() and does not propagate any OpenCV_INCLUDE_ variable
# let's skip module mode, and see if a OpenCVConfig.cmake file is around
# this searches in system directories and ${OpenCV_DIR}
include(FindPackageHandleStandardArgs)
set(_OpenCV_FIND_QUIETLY ${OpenCV_FIND_QUIETLY})
find_package(OpenCV QUIET NO_MODULE)
set(OpenCV_FIND_QUIETLY ${_OpenCV_FIND_QUIETLY})
if(OpenCV_FOUND)
set(OpenCV_CONFIG_MODE true)
find_package_handle_standard_args(OpenCV DEFAULT_MSG OpenCV_CONFIG)
## OpenCVConfig.cmake sets OpenCV_LIBS OpenCV_INCLUDE_DIRS
## but we need OpenCV_LIBRARIES
if(NOT DEFINED OpenCV_LIBRARIES)
set(OpenCV_LIBRARIES ${OpenCV_LIBS})
endif()
endif()
### If the above failed continues with traditional search method
## To keep backward compatibility we keep the whole script
## intact, however there is probably a lot of redundancy now
if(NOT OpenCV_CONFIG_MODE)
find_path(OpenCV_DIR "OpenCVConfig.cmake" DOC "Root directory of OpenCV")
##====================================================
## Find OpenCV libraries
##----------------------------------------------------
if(EXISTS "${OpenCV_DIR}")
#When its possible to use the Config script use it.
if(EXISTS "${OpenCV_DIR}/OpenCVConfig.cmake")
## Include the standard CMake script
include("${OpenCV_DIR}/OpenCVConfig.cmake")
## Search for a specific version
set(CVLIB_SUFFIX "${OpenCV_VERSION_MAJOR}${OpenCV_VERSION_MINOR}${OpenCV_VERSION_PATCH}")
#Otherwise it try to guess it.
else()
set(OPENCV_LIB_COMPONENTS cxcore cv ml highgui cvaux)
find_path(OpenCV_INCLUDE_DIR "cv.h" PATHS "${OpenCV_DIR}" PATH_SUFFIXES "include" "include/opencv" DOC "")
if(EXISTS "${OpenCV_INCLUDE_DIR}")
include_directories(${OpenCV_INCLUDE_DIR})
endif()
#Find OpenCV version by looking at cvver.h
file(STRINGS ${OpenCV_INCLUDE_DIR}/cvver.h OpenCV_VERSIONS_TMP REGEX "^#define CV_[A-Z]+_VERSION[ \t]+[0-9]+$")
string(REGEX REPLACE ".*#define CV_MAJOR_VERSION[ \t]+([0-9]+).*" "\\1" OpenCV_VERSION_MAJOR ${OpenCV_VERSIONS_TMP})
string(REGEX REPLACE ".*#define CV_MINOR_VERSION[ \t]+([0-9]+).*" "\\1" OpenCV_VERSION_MINOR ${OpenCV_VERSIONS_TMP})
string(REGEX REPLACE ".*#define CV_SUBMINOR_VERSION[ \t]+([0-9]+).*" "\\1" OpenCV_VERSION_PATCH ${OpenCV_VERSIONS_TMP})
set(OpenCV_VERSION ${OpenCV_VERSION_MAJOR}.${OpenCV_VERSION_MINOR}.${OpenCV_VERSION_PATCH} CACHE STRING "" FORCE)
set(CVLIB_SUFFIX "${OpenCV_VERSION_MAJOR}${OpenCV_VERSION_MINOR}${OpenCV_VERSION_PATCH}")
endif()
## Initiate the variable before the loop
set(OpenCV_LIBS "")
set(OpenCV_FOUND_TMP true)
## Loop over each components
foreach(__CVLIB ${OPENCV_LIB_COMPONENTS})
find_library(OpenCV_${__CVLIB}_LIBRARY_DEBUG NAMES "${__CVLIB}${CVLIB_SUFFIX}d" "lib${__CVLIB}${CVLIB_SUFFIX}d" PATHS "${OpenCV_DIR}/lib" NO_DEFAULT_PATH)
find_library(OpenCV_${__CVLIB}_LIBRARY_RELEASE NAMES "${__CVLIB}${CVLIB_SUFFIX}" "lib${__CVLIB}${CVLIB_SUFFIX}" PATHS "${OpenCV_DIR}/lib" NO_DEFAULT_PATH)
#Remove the cache value
set(OpenCV_${__CVLIB}_LIBRARY "" CACHE STRING "" FORCE)
#both debug/release
if(OpenCV_${__CVLIB}_LIBRARY_DEBUG AND OpenCV_${__CVLIB}_LIBRARY_RELEASE)
set(OpenCV_${__CVLIB}_LIBRARY debug ${OpenCV_${__CVLIB}_LIBRARY_DEBUG} optimized ${OpenCV_${__CVLIB}_LIBRARY_RELEASE} CACHE STRING "" FORCE)
#only debug
elseif(OpenCV_${__CVLIB}_LIBRARY_DEBUG)
set(OpenCV_${__CVLIB}_LIBRARY ${OpenCV_${__CVLIB}_LIBRARY_DEBUG} CACHE STRING "" FORCE)
#only release
elseif(OpenCV_${__CVLIB}_LIBRARY_RELEASE)
set(OpenCV_${__CVLIB}_LIBRARY ${OpenCV_${__CVLIB}_LIBRARY_RELEASE} CACHE STRING "" FORCE)
#no library found
else()
set(OpenCV_FOUND_TMP false)
endif()
#Add to the general list
if(OpenCV_${__CVLIB}_LIBRARY)
set(OpenCV_LIBS ${OpenCV_LIBS} ${OpenCV_${__CVLIB}_LIBRARY})
endif()
endforeach()
set(OpenCV_FOUND ${OpenCV_FOUND_TMP} CACHE BOOL "" FORCE)
else()
set(ERR_MSG "Please specify OpenCV directory using OpenCV_DIR env. variable")
endif()
##====================================================
if(NOT OpenCV_FOUND)
#
# Try another method to find OpenCV library
# Once run this will define:
#
# OPENCV_FOUND
# OPENCV_INCLUDE_DIR
# OPENCV_LIBRARIES
# OPENCV_LINK_DIRECTORIES
##
# deprecated:
# (JW)-- OPENCV_EXE_LINKER_FLAGS
#
# 2004/05 Jan Woetzel, Friso, Daniel Grest
# 2006 complete rewrite by Jan Woetzel
##
# www.mip.informatik.uni-kiel.de/
# --------------------------------
#
# Modified by nat for YARP
# - nat modified to work on win: added "$ENV{OPENCV_DIR}/otherlibs/highgui/include"
# - nat, 19-oct 06: cxcore does not seem required by the opencv pakage that is
# distributed with Debian stable. Still a requirement in windows
# - nat, 20-oct 06: not smart enough to handle possible clashes between
# different versions of opencv if installed in the system. Be careful.
# - nat, 23-oct 06: First check OPENCV_DIR, OPENCV_ROOT or OPENCV_HOME
# - paulfitz, 5-nov 06: made link with libhighgui be default true
# so that the opencv driver can be compiled. Nat, can you explain again
# which systems don't have this?
# - nat, 13-nov 06: differentiated LINK_LIBHIGHGUI default on windows and linux
# still both true by default. I got a problem linking libhighgui on linux (did not
# have time to debug it) and found that in any case this lib is no longer required
# by opencv 0.9.9 (as a dependency). If older versions of opencv require libhighgui
# we can leave the default to TRUE. The libhighgui problem needs to be solved
# anyway...
set(LINK_LIB_HIGHGUI TRUE CACHE BOOL "Do you want to link against libhighgui?")
mark_as_advanced(LINK_LIB_HIGHGUI)
if(LINK_LIB_HIGHGUI AND WIN32)
set(LINK_LIB_CVCAM)
endif()
set(IS_GNUCXX3 FALSE)
set(IS_GNUCXX4 FALSE)
if(${CMAKE_COMPILER_IS_GNUCXX})
message(STATUS "Checking GNUCXX version 3/4 to determine OpenCV /opt/net/ path")
exec_program(${CMAKE_CXX_COMPILER} ARGS --version OUTPUT_VARIABLE CXX_COMPILER_VERSION)
if(CXX_COMPILER_VERSION MATCHES ".*3\\.[0-9].*")
# message("DBG OpenCV for 3.x")
set(IS_GNUCXX3 TRUE)
# else()
# message("DBG not 3.x")
endif()
if(CXX_COMPILER_VERSION MATCHES ".*4\\.[0-9].*")
# message("DBG OpenCV for 4.x")
set(IS_GNUCXX4 TRUE)
# else()
# message("DBG not 4.x")
endif()
endif()
# CHECK OPENCV_ROOT
if(EXISTS "$ENV{OPENCV_ROOT}")
set(OPENCV_POSSIBLE_INCDIRS "$ENV{OPENCV_ROOT}"
"$ENV{OPENCV_ROOT}/include"
"$ENV{OPENCV_ROOT}/include/cv"
"$ENV{OPENCV_ROOT}/include/opencv"
"$ENV{OPENCV_ROOT}/cxcore/include"
"$ENV{OPENCV_ROOT}/cv/include"
"$ENV{OPENCV_ROOT}/cvaux/include"
"$ENV{OPENCV_ROOT}/otherlibs/cvcam/include"
"$ENV{OPENCV_ROOT}/otherlibs/highgui/include"
"$ENV{OPENCV_ROOT}/otherlibs/highgui/")
set(OPENCV_POSSIBLE_LIBRARY_PATHS "$ENV{OPENCV_ROOT}/lib"
"$ENV{OPENCV_ROOT}")
endif()
# CHECK OPENCV_DIR
if(EXISTS "$ENV{OPENCV_DIR}")
set(OPENCV_POSSIBLE_INCDIRS "$ENV{OPENCV_DIR}"
"$ENV{OPENCV_DIR}/include"
"$ENV{OPENCV_DIR}/include/cv"
"$ENV{OPENCV_DIR}/include/opencv"
"$ENV{OPENCV_DIR}/cxcore/include"
"$ENV{OPENCV_DIR}/cv/include"
"$ENV{OPENCV_DIR}/cvaux/include"
"$ENV{OPENCV_DIR}/otherlibs/cvcam/include"
"$ENV{OPENCV_DIR}/otherlibs/highgui/include"
"$ENV{OPENCV_DIR}/otherlibs/highgui/")
set(OPENCV_POSSIBLE_LIBRARY_PATHS "$ENV{OPENCV_DIR}"
"$ENV{OPENCV_DIR}/lib")
endif()
# CHECK OPENCV_HOME
if(EXISTS "$ENV{OPENCV_HOME}")
set(OPENCV_POSSIBLE_INCDIRS "$ENV{OPENCV_HOME}"
"$ENV{OPENCV_HOME}/include"
"$ENV{OPENCV_HOME}/include/cv"
"$ENV{OPENCV_HOME}/include/opencv")
endif()
if(NOT OPENCV_POSSIBLE_INCDIRS)
set(OPENCV_POSSIBLE_INCDIRS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Intel(R) Open Source Computer Vision Library_is1;Inno Setup: App Path]"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Intel(R) Open Source Computer Vision Library_is1;Inno Setup: App Path]/include"
"$ENV{ProgramFiles}/OpenCV"
"$ENV{ProgramFiles}/OpenCV/include"
"$ENV{ProgramFiles}/OpenCV/cxcore/include"
"$ENV{ProgramFiles}/OpenCV/cv/include"
"$ENV{ProgramFiles}/OpenCV/cvaux/include"
"$ENV{ProgramFiles}/OpenCV/otherlibs/cvcam/include"
"$ENV{ProgramFiles}/OpenCV/otherlibs/highgui/include"
"$ENV{ProgramFiles}/OpenCV/otherlibs/highgui"
/usr/include/opencv
/usr/local/include/opencv)
endif()
if(NOT OPENCV_POSSIBLE_LIBRARY_PATHS)
set(OPENCV_POSSIBLE_LIBRARY_PATHS "$ENV{ProgramFiles}/OpenCV/lib"
"/usr/local/lib"
"/usr/lib"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Intel(R) Open Source Computer Vision Library_is1;Inno Setup: App Path]/lib")
endif()
if(IS_GNUCXX3)
set(OPENCV_POSSIBLE_INCDIRS ${OPENCV_POSSIBLE_INCDIRS}
/opt/net/gcc33/OpenCV/
/opt/net/gcc33/OpenCV/include
/opt/net/gcc33/OpenCV/include/opencv)
endif()
if(IS_GNUCXX4)
set(OPENCV_POSSIBLE_INCDIRS ${OPENCV_POSSIBLE_INCDIRS}
/opt/net/gcc41/OpenCV/
/opt/net/gcc41/OpenCV/include
/opt/net/gcc41/OpenCV/include/opencv)
endif()
#message("DBG (OPENCV_POSSIBLE_INCDIRS=${OPENCV_POSSIBLE_INCDIRS}")
# candidates for OpenCV library directories:
if(IS_GNUCXX3)
set(OPENCV_POSSIBLE_LIBRARY_PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
/opt/net/gcc33/OpenCV
/opt/net/gcc33/OpenCV/lib)
endif()
if(IS_GNUCXX4)
set(OPENCV_POSSIBLE_LIBRARY_PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
/opt/net/gcc41/OpenCV
/opt/net/gcc41/OpenCV/lib)
endif()
#message("DBG (OPENCV_POSSIBLE_LIBRARY_PATHS=${OPENCV_POSSIBLE_LIBRARY_PATHS}")
# find (all) header files for include directories:
find_path(OPENCV_INCLUDE_DIR_CXCORE cxcore.h ${OPENCV_POSSIBLE_INCDIRS} )
find_path(OPENCV_INCLUDE_DIR_CV cv.h ${OPENCV_POSSIBLE_INCDIRS} )
find_path(OPENCV_INCLUDE_DIR_CVAUX cvaux.h ${OPENCV_POSSIBLE_INCDIRS} )
find_path(OPENCV_INCLUDE_DIR_HIGHGUI highgui.h ${OPENCV_POSSIBLE_INCDIRS} )
find_path(OPENCV_INCLUDE_DIR_CVCAM cvcam.h ${OPENCV_POSSIBLE_INCDIRS} )
#message("DBG OPENCV_INCLUDE_DIR_CV=${OPENCV_INCLUDE_DIR_CV}")
# find (all) libraries - some dont exist on Linux
find_library(OPENCV_LIBRARY
NAMES opencv cv cv0.9 cv0.9.5 cv0.9.6 cv0.9.7 cv0.9.8 cv0.9.9
PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
DOC "Location of the opencv lib")
find_library(OPENCV_CVAUX_LIBRARY
NAMES cvaux cvaux0.9 cvaux0.9.5 cvaux0.9.6 cvaux0.9.7 cvaux0.9.8 cvaux0.9.9
PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
DOC "Location of the cvaux lib")
find_library(OPENCV_CXCORE_LIBRARY
NAMES cxcore cxcore0.9 cxcore0.9.5 cxcore0.9.6 cxcore0.9.7 cxcore0.9.8 cxcore0.9.9
PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
DOC "Location of the cvcore lib")
find_library(OPENCV_HIGHGUI_LIBRARY
NAMES highgui highgui0.9 highgui0.9.5 highgui0.9.6 highgui0.9.7 highgui0.9.8 highgui0.9.9
PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
DOC "Location of the highgui library")
# optional CVCAM libs (WIN32 only)
find_library(OPENCV_CVCAM_LIBRARY
NAMES cvcam
PATHS ${OPENCV_POSSIBLE_LIBRARY_PATHS}
DOC "Location of the cvcam lib")
set(OPENCV_FOUND ON)
###########################################
## CHECK HEADER FILES
# REQUIRED LIBS
foreach(INCDIR OPENCV_INCLUDE_DIR_CV OPENCV_INCLUDE_DIR_CVAUX)
if(${INCDIR})
set(OPENCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR} ${${INCDIR}} )
else()
message(STATUS "- DBG OPENCV_INCLUDE_DIR_CVCAM=${OPENCV_INCLUDE_DIR_CVCAM}")
set(OPENCV_FOUND OFF)
endif()
endforeach()
# some people write opencv/foo.h, some write foo.h
if(OPENCV_INCLUDE_DIR_CV)
set(OPENCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR} "${OPENCV_INCLUDE_DIR_CV}/..")
endif()
# CVCAM exists only on Windows (check this -- nat)
if(LINK_LIB_CVCAM)
if(OPENCV_INCLUDE_DIR_CVCAM)
set(OPENCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR} ${OPENCV_INCLUDE_DIR_CVCAM} )
else()
# exists only on Windows, thus only there required
if(WIN32)
set(OPENCV_FOUND OFF)
message(STATUS "- DBG OPENCV_INCLUDE_DIR_CVCAM=${OPENCV_INCLUDE_DIR_CVCAM} ")
endif()
endif()
endif()
# message("DBG OPENCV_INCLUDE_DIR=${OPENCV_INCLUDE_DIR}")
# libcxcore does not seem to be always required (different distribution behave
# differently)
if(OPENCV_INCLUDE_DIR_CXCORE)
set(OPENCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR} ${OPENCV_INCLUDE_DIR_CXCORE})
else()
if(WIN32) #required in win
set(OPENCV_FOUND OFF)
message(STATUS "- DBG OPENCV_INCLUDE_DIR_CXCORE=${OPENCV_INCLUDE_DIR_CXCORE} ")
endif()
endif()
if(LINK_LIB_HIGHGUI)
if(OPENCV_INCLUDE_DIR_HIGHGUI)
set(OPENCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR} ${OPENCV_INCLUDE_DIR_HIGHGUI})
else()
if(WIN32)
set(OPENCV_FOUND OFF)
message(STATUS "- DBG OPENCV_INCLUDE_DIR_HIGHGUI=${OPENCV_INCLUDE_DIR_HIGHGUI} ")
endif()
endif()
endif()
#################################
## LIBRARIES
# REQUIRED LIBRARIES
foreach(LIBNAME OPENCV_LIBRARY OPENCV_CVAUX_LIBRARY)
if(${LIBNAME})
set(OPENCV_LIBRARIES ${OPENCV_LIBRARIES} ${${LIBNAME}})
else()
message(STATUS "${LIBNAME} not found turning off OPENCV_FOUND")
set(OPENCV_FOUND OFF)
endif()
endforeach()
if(OPENCV_CXCORE_LIBRARY)
set(OPENCV_LIBRARIES ${OPENCV_LIBRARIES} ${OPENCV_CXCORE_LIBRARY})
else()
if(WIN32) #this is required on windows
set(OPENCV_FOUND OFF)
message(STATUS "OPENCV_CXCORE_LIBRARY not found turning off OPENCV_FOUND")
endif()
endif()
# CVCAM exists only on Windows (check this -- nat)
if(LINK_LIB_CVCAM)
if(OPENCV_CVCAM_LIBRARY)
set(OPENCV_LIBRARIES ${OPENCV_LIBRARIES} ${OPENCV_CVCAM_LIBRARY} )
else()
if(WIN32)
set(OPENCV_FOUND OFF)
message(STATUS "OPENCV_CVCAM_LIBRARY not found turning off OPENCV_FOUND")
endif()
endif()
endif()
# message("DBG OPENCV_LIBRARIES=${OPENCV_LIBRARIES}")
if(LINK_LIB_HIGHGUI)
if(OPENCV_HIGHGUI_LIBRARY)
set(OPENCV_LIBRARIES ${OPENCV_LIBRARIES} ${OPENCV_HIGHGUI_LIBRARY})
else()
if(WIN32) #this is required on windows
set(OPENCV_FOUND OFF)
message(STATUS "OPENCV_HIGHGUI_LIBRARY not found turning off OPENCV_FOUND")
endif()
endif()
endif()
# get the link directory for rpath to be used with LINK_DIRECTORIES:
if(OPENCV_LIBRARY)
get_filename_component(OPENCV_LINK_DIRECTORIES ${OPENCV_LIBRARY} DIRECTORY)
endif()
# display help message
if(NOT OPENCV_FOUND)
message(STATUS "OPENCV library or headers not found. Please search manually or set env. variable OPENCV_ROOT to guide search." )
endif()
mark_as_advanced(OPENCV_INCLUDE_DIR
OPENCV_INCLUDE_DIR_CXCORE
OPENCV_INCLUDE_DIR_CV
OPENCV_INCLUDE_DIR_CVAUX
OPENCV_INCLUDE_DIR_CVCAM
OPENCV_INCLUDE_DIR_HIGHGUI
OPENCV_LIBRARIES
OPENCV_LIBRARY
OPENCV_HIGHGUI_LIBRARY
OPENCV_CVAUX_LIBRARY
OPENCV_CXCORE_LIBRARY
OPENCV_CVCAM_LIBRARY
OPENCV_DIR)
set(OpenCV_FOUND ${OPENCV_FOUND})
set(OpenCV_INCLUDE_DIR ${OPENCV_INCLUDE_DIR})
set(OpenCV_LIBS ${OPENCV_LIBRARIES})
endif()
##====================================================
## Print message
##----------------------------------------------------
if(NOT OpenCV_FOUND)
# make FIND_PACKAGE friendly
if(NOT OpenCV_FIND_QUIETLY)
if(OpenCV_FIND_REQUIRED)
message(FATAL_ERROR "OpenCV required but some headers or libs not found. ${ERR_MSG}")
else()
message(STATUS "WARNING: OpenCV was not found. ${ERR_MSG}")
endif()
endif()
endif()
##====================================================
##====================================================
## Backward compatibility
##----------------------------------------------------
if(OpenCV_FOUND)
option(OpenCV_BACKWARD_COMPA "Add some variable to make this script compatible with the other version of FindOpenCV.cmake" false)
if(OpenCV_BACKWARD_COMPA)
find_path(OpenCV_INCLUDE_DIRS "cv.h" PATHS "${OpenCV_DIR}" PATH_SUFFIXES "include" "include/opencv" DOC "Include directory")
find_path(OpenCV_INCLUDE_DIR "cv.h" PATHS "${OpenCV_DIR}" PATH_SUFFIXES "include" "include/opencv" DOC "Include directory")
set(OpenCV_LIBRARIES "${OpenCV_LIBS}" CACHE STRING "" FORCE)
endif()
endif()
##====================================================
set(OpenCV_LIBRARIES ${OpenCV_LIBS})
set(OpenCV_INCLUDE_DIRS ${OpenCV_INCLUDE_DIR})
# support old variable names
set(OPENCV_LIBRARIES ${OpenCV_LIBS})
set(OPENCV_INCLUDE_DIR ${OpenCV_INCLUDE_DIR})
# Not all version of OpenCV set OpenCV_INCLUDE_DIRS, removing it from required arguments
# Lorenzo Natale March 2011. See notes on top of file.
# find_package_handle_standard_args(OpenCV DEFAULT_MSG OpenCV_LIBRARIES OpenCV_INCLUDE_DIRS)
find_package_handle_standard_args(OpenCV DEFAULT_MSG OpenCV_LIBRARIES)
endif()
# Set package properties if FeatureSummary was included
if(COMMAND set_package_properties)
set_package_properties(OpenCV PROPERTIES DESCRIPTION "Open source computer vision library"
URL "http://opencv.org/")
endif()
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