Я кросс-компилирую библиотеку (ORBSLAM3) на p c с использованием / usr и / lib из rpi4 (после использования rsyn c). И я помещаю их в папку с именем "rootf". Необходимые библиотеки были установлены раньше, поэтому теперь они находятся в ~ / rootf / usr и ~ / rootf / lib. Мне нужно скомпилировать ORBSLAM3, используя ~ / rootf / в качестве root.
Дело в том, что я не знаком с cmake, поэтому некоторое время боролся.
Процесс компиляции это:
- с использованием Toolchain-rpi.cmake для CMakeLists.txt на верхнем уровне ORBSLAM3.
- В CMakeLists.txt он находит панголина с помощью find_package (ТРЕБУЕТСЯ Pangolin)
find_package () на самом деле делает правильно. Он успешно находит
/home/ethan/raspberrypi/rootfs/usr/local/lib/cmake/Pangolin/PangolinTargets.cmake
CMAKE_PREFIX_PATH в этом CMakeLists.txt правильный, что составляет
/home/ethan/raspberrypi/rootfs/usr/local/lib;/home/ethan/raspberrypi/rootfs/usr/lib/arm-linux-gnueabihf
После удаления pangolin на ubuntu я получаю следующее:
CMake Error at /home/ethan/raspberrypi/rootfs/usr/local/lib/cmake/Pangolin/PangolinTargets.cmake:80 (message):
The imported target "pangolin" references the file
"/usr/local/lib/libpangolin.so"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
Поскольку Pangolin изначально был установлен на борту, libpangolin.so на борту находится по адресу /usr/local/lib/libpangolin.so. Думаю, когда я использую PangolinTargets.cmake, он делает то же самое.
Я выводю CMAKE_SYS ROOT, CMAKE_PREFIX_PATH, _IMPORT_PREFIX в PangolinTargets.cmake. Это то, что я ожидаю.
CMAKE_SYSROOT = /home/ethan/raspberrypi/rootfs
CMAKE_PREFIX_PATH = ;/home/ethan/raspberrypi/rootfs/usr/local/lib;/home/ethan/raspberrypi/rootfs/usr/lib/arm-linux-gnueabihf
_IMPORT_PREFIX = /home/ethan/raspberrypi/rootfs/usr/local
Даже если я добавлю / home / ethan / raspberrypi / rootfs в качестве префикса к указанным ниже путям, ничего не изменится.
set_target_properties(pangolin PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "/usr/include;/usr/include;/usr/include;/usr/local/include/eigen3;${_IMPORT_PREFIX}/include"
INTERFACE_LINK_LIBRARIES "rt;pthread;/usr/lib/arm-linux-gnueabihf/libGL.so;/usr/lib/arm-linux-gnueabihf/libGLU.so;
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "/usr/include;/usr/include;/usr/include;/usr/local/include/eigen3"
)
Вот содержимое PangolinTargets.cmake. Я не уверен, какие части приводят к поиску только / usr. Всем спасибо.
# Generated by CMake
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5)
message(FATAL_ERROR "CMake >= 2.6.0 required")
endif()
cmake_policy(PUSH)
cmake_policy(VERSION 2.6)
#----------------------------------------------------------------
# Generated CMake target import file.
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Protect against multiple inclusion, which would fail when already imported targets are added once more.
set(_targetsDefined)
set(_targetsNotDefined)
set(_expectedTargets)
foreach(_expectedTarget pangolin)
list(APPEND _expectedTargets ${_expectedTarget})
if(NOT TARGET ${_expectedTarget})
list(APPEND _targetsNotDefined ${_expectedTarget})
endif()
if(TARGET ${_expectedTarget})
list(APPEND _targetsDefined ${_expectedTarget})
endif()
endforeach()
if("${_targetsDefined}" STREQUAL "${_expectedTargets}")
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)
return()
endif()
if(NOT "${_targetsDefined}" STREQUAL "")
message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n")
endif()
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
# Compute the installation prefix relative to this file.
get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
if(_IMPORT_PREFIX STREQUAL "/")
set(_IMPORT_PREFIX "")
endif()
# Create imported target pangolin
add_library(pangolin SHARED IMPORTED)
set_target_properties(pangolin PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "/usr/include;/usr/include;/usr/include;/usr/local/include/eigen3;${_IMPORT_PREFIX}/include"
INTERFACE_LINK_LIBRARIES "rt;pthread;/usr/lib/arm-linux-gnueabihf/libGL.so;/usr/lib/arm-linux-gnueabihf/libGLU.so;/usr/lib/arm-linux-gnueabihf/libGLEW.so;/usr/lib/arm-linux-gnueabihf/libEGL.so;/usr/lib/arm-linux-gnueabihf/libSM.so;/usr/lib/arm-linux-gnueabihf/libICE.so;/usr/lib/arm-linux-gnueabihf/libX11.so;/usr/lib/arm-linux-gnueabihf/libXext.so;rt;pthread;/usr/lib/arm-linux-gnueabihf/libdc1394.so;/usr/lib/arm-linux-gnueabihf/libpng.so;/usr/lib/arm-linux-gnueabihf/libz.so;/usr/lib/arm-linux-gnueabihf/libjpeg.so;/usr/lib/arm-linux-gnueabihf/libtiff.so;/usr/lib/arm-linux-gnueabihf/libIlmImf.so"
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "/usr/include;/usr/include;/usr/include;/usr/local/include/eigen3"
)
if(CMAKE_VERSION VERSION_LESS 2.8.12)
message(FATAL_ERROR "This file relies on consumers using CMake 2.8.12 or greater.")
endif()
# Load information for each installed configuration.
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB CONFIG_FILES "${_DIR}/PangolinTargets-*.cmake")
foreach(f ${CONFIG_FILES})
include(${f})
endforeach()
# Cleanup temporary variables.
set(_IMPORT_PREFIX)
# Loop over all imported files and verify that they actually exist
foreach(target ${_IMPORT_CHECK_TARGETS} )
foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )
if(NOT EXISTS "${file}" )
message(FATAL_ERROR "The imported target \"${target}\" references the file
\"${file}\"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
\"${CMAKE_CURRENT_LIST_FILE}\"
but not all the files it references.
")
endif()
endforeach()
unset(_IMPORT_CHECK_FILES_FOR_${target})
endforeach()
unset(_IMPORT_CHECK_TARGETS)
# This file does not depend on other imported targets which have
# been exported from the same project but in a separate export set.
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)