CMakeLists.txt

cmake_minimum_required(VERSION 3.0)
project(DBoW2_OS3)
include(ExternalProject)

option(BUILD_DBoW2_OS3   "Build DBoW2_OS3"        ON)
option(BUILD_Demo        "Build demo application" OFF)

if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
    "MinSizeRel" "RelWithDebInfo")
endif()

if(MSVC)
  add_compile_options(/W4)
else()
  add_compile_options(-Wall -Wextra -Wpedantic)
endif()

set(HDRS
  include/DBoW2_OS3/BowVector.h           include/DBoW2_OS3/FBrief.h
  include/DBoW2_OS3/QueryResults.h        include/DBoW2_OS3/TemplatedDatabase.h   include/DBoW2_OS3/FORB.h
  include/DBoW2_OS3/DBoW2.h               include/DBoW2_OS3/FClass.h              include/DBoW2_OS3/FeatureVector.h
  include/DBoW2_OS3/ScoringObject.h       include/DBoW2_OS3/TemplatedVocabulary.h)
set(SRCS 
  src/BowVector.cpp     src/FBrief.cpp        src/FORB.cpp
  src/FeatureVector.cpp src/QueryResults.cpp  src/ScoringObject.cpp)

set(DEPENDENCY_DIR ${CMAKE_CURRENT_BINARY_DIR}/dependencies)
set(DEPENDENCY_INSTALL_DIR ${DEPENDENCY_DIR}/install)

find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})

if(BUILD_DBoW2_OS3)
  set(LIB_SHARED "SHARED")
  if(WIN32)
    set(LIB_SHARED "STATIC")
  endif(WIN32)
  add_library(${PROJECT_NAME} ${LIB_SHARED} ${SRCS})
  target_include_directories(${PROJECT_NAME} PUBLIC include/DBoW2_OS3/ include/)
  target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})
  set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD 11)
endif(BUILD_DBoW2_OS3)

if(BUILD_Demo)
  add_executable(demo demo/demo.cpp)
  target_link_libraries(demo ${PROJECT_NAME} ${OpenCV_LIBS})
  set_target_properties(demo PROPERTIES CXX_STANDARD 11)
  file(COPY demo/images DESTINATION ${CMAKE_BINARY_DIR}/)
endif(BUILD_Demo)

configure_file(src/DBoW2_OS3.cmake.in
  "${PROJECT_BINARY_DIR}/DBoW2_OS3Config.cmake" @ONLY)

install(TARGETS ${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_PREFIX}/lib)
if(BUILD_DBoW2_OS3)
  install(DIRECTORY include/DBoW2_OS3 DESTINATION ${CMAKE_INSTALL_PREFIX}/include)
endif()
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/DBoW2_OS3Config.cmake"
  DESTINATION ${CMAKE_INSTALL_PREFIX}/include/${PROJECT_NAME})
install(FILES "${PROJECT_BINARY_DIR}/DBoW2_OS3Config.cmake" 
  DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/cmake/DBoW2_OS3/)
install(DIRECTORY ${DEPENDENCY_INSTALL_DIR}/ DESTINATION ${CMAKE_INSTALL_PREFIX} OPTIONAL)