CMake配置OpenCV：关键路径与标准设置

# ----------------------------------------------------------------------------
#  Root CMake file for OpenCV
#
#    From the off-tree build directory, invoke:
#      $ cmake <PATH_TO_OPENCV_ROOT>
#
#
#   - OCT-2008: Initial version <joseluisblancoc@gmail.com>
#
# ----------------------------------------------------------------------------

set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
# Add these standard paths to the search paths for FIND_LIBRARY
# to find libraries from these locations first
if(UNIX)
  set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /lib /usr/lib)
endif()
# it _must_ go before PROJECT(OpenCV) in order to work
if (NOT CMAKE_INSTALL_PREFIX)
    if (WIN32)
        set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR} CACHE INTERNAL "" FORCE)
    elseif()
        set(CMAKE_INSTALL_PREFIX "/usr" CACHE INTERNAL "" FORCE)
    endif()
endif()

SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE)

set(CMAKE_C_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_C_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_CXX_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
set(CMAKE_VERBOSE OFF CACHE BOOL "Verbose mode")

if (CMAKE_VERBOSE)
        set (CMAKE_VERBOSE_MAKEFILE 1)
endif()

project(OpenCV)

cmake_minimum_required(VERSION 2.4)

if(MSVC)
    set(CMAKE_USE_RELATIVE_PATHS ON CACHE INTERNAL "" FORCE)
endif()

#set(CMAKE_C_COMPILER "/opt/BullseyeCoverage/bin/gcc")
#set(CMAKE_CXX_COMPILER "/opt/BullseyeCoverage/bin/g++")
#set(CMAKE_CXX_COMPILER_INIT "/opt/BullseyeCoverage/bin/gcc")

# --------------------------------------------------------------
# Indicate CMake 2.7 and above that we don't want to mix relative