1 先找一个例程。里面用到halide。

这时会提示找不到package。

按照那个提示做就行。

2 把提前下载好的halide放到一个位置

3 然后设置一下那个Halide_DIR就可以了

set(Halide_DIR "${CMAKE_SOURCE_DIR}/your_path/Halide/")
list(APPEND CMAKE_PREFIX_PATH ${Halide_DIR})

这种方法有个问题 就是不能找halide依赖的库，ZLIB，PNG，JPEG。

解决方法是

直接在那个cmake_prefix_path 里面多加上这一句

这样做就是慢一些

参考opencv库的make 方式

set(Opencv_root "${CMAKE_SOURCE_DIR}/your_path/opencv")
set(Opencv_INCLUDE_DIRS "${Opencv_root}/include/")

set(world_lib "${Opencv_root}/lib/release/opencv_world454.lib")
set(world_d_lib "${Opencv_root}/lib/debug/opencv_world454d.lib")
add_library(opencv::world UNKNOWN IMPORTED)
set_target_properties(
  opencv::world
  PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${Opencv_INCLUDE_DIRS}
             IMPORTED_LOCATION_DEBUG "${world_d_lib}"
             IMPORTED_LOCATION_RELEASE "${world_lib}"
             IMPORTED_LOCATION_RELWITHDEBINFO "${world_lib}")

set(libpng_lib "${Opencv_root}/lib/release/libpng.lib")
set(libpng_d_lib "${Opencv_root}/lib/debug/libpngd.lib")
add_library(opencv::libpng UNKNOWN IMPORTED)
set_target_properties(
  opencv::libpng
  PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${Opencv_INCLUDE_DIRS}
             IMPORTED_LOCATION_DEBUG ${libpng_d_lib}
             IMPORTED_LOCATION_RELEASE ${libpng_lib}
             IMPORTED_LOCATION_RELWITHDEBINFO "${libpng_lib}")

set(zlib_lib "${Opencv_root}/lib/release/zlib.lib")
set(zlib_d_lib "${Opencv_root}/lib/debug/zlibd.lib")
add_library(opencv::zlib UNKNOWN IMPORTED)
set_target_properties(
  opencv::zlib
  PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${Opencv_INCLUDE_DIRS}
             IMPORTED_LOCATION_DEBUG ${zlib_d_lib}
             IMPORTED_LOCATION_RELEASE ${zlib_lib}
             IMPORTED_LOCATION_RELWITHDEBINFO "${zlib_lib}")

set(libjpegturbo_lib "${Opencv_root}/lib/release/libjpeg-turbo.lib")
set(libjpegturbo_d_lib "${Opencv_root}/lib/debug/libjpeg-turbod.lib")
add_library(opencv::libjpegturbo UNKNOWN IMPORTED)
set_target_properties(
  opencv::libjpegturbo
  PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${Opencv_INCLUDE_DIRS}
             IMPORTED_LOCATION_DEBUG ${libjpegturbo_d_lib}
             IMPORTED_LOCATION_RELEASE ${libjpegturbo_lib}
             IMPORTED_LOCATION_RELWITHDEBINFO "${libjpegturbo_lib}")

set(libopenjp2_lib "${Opencv_root}/lib/release/libopenjp2.lib")
set(libopenjp2_d_lib "${Opencv_root}/lib/debug/libopenjp2d.lib")
add_library(opencv::libopenjp2 UNKNOWN IMPORTED)
set_target_properties(
  opencv::libopenjp2
  PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${Opencv_INCLUDE_DIRS}
             IMPORTED_LOCATION_DEBUG ${libopenjp2_d_lib}
             IMPORTED_LOCATION_RELEASE ${libopenjp2_lib}
             IMPORTED_LOCATION_RELWITHDEBINFO "${libopenjp2_lib}")

add_library(opencv INTERFACE IMPORTED)
set_property(
  TARGET opencv PROPERTY INTERFACE_LINK_LIBRARIES opencv::world opencv::libpng
                         opencv::zlib opencv::libjpegturbo opencv::libopenjp2)