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OpenCV By Example by Vinícius Godoy, David Millán Escrivá, Prateek Joshi

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Managing dependencies

CMake has the ability to search our dependencies and external libraries, giving us the facility to build complex projects depending on external components in our projects and by adding some requirements.

In this book, the most important dependency is, of course, OpenCV, and we will add it to all our projects:

cmake_minimum_required (VERSION 2.6) cmake_policy(SET CMP0012 NEW) PROJECT(Chapter2) # Requires OpenCV FIND_PACKAGE( OpenCV 3.0.0 REQUIRED ) # Show a message with the opencv version detected MESSAGE("OpenCV version : ${OpenCV_VERSION}") include_directories(${OpenCV_INCLUDE_DIRS}) link_directories(${OpenCV_LIB_DIR}) # Create a variable called SRC SET(SRC main.cpp ) # Create our executable ADD_EXECUTABLE( ${PROJECT_NAME} ...

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