Yocto 如何停止 cmake 在本地 sysroot 路径中查找链接？

Question

到目前为止，我正在尝试将 dlib python 模块添加到我的图像中，这是我正在研究的配方...

# python3-dlib_19.21.1.bb
SUMMARY = "A toolkit for making real world machine learning and data analysis applications"
HOMEPAGE = "https://pypi.python.org/pypi/dlib"
PYPI_PACKAGE = "dlib"
LICENSE = "Boost-Software"
SRC_URI[md5sum] = "1e7e357d7d54e86267ef60f606cb40e1"
LIC_FILES_CHKSUM = "file://dlib/LICENSE.txt;md5=2c7a3fa82e66676005cd4ee2608fd7d2 \
                    file://dlib/external/libpng/LICENSE;md5=243135ddedf702158f9170807cbcfb66 \
                    file://dlib/external/pybind11/LICENSE;md5=beb87117af69fd10fbf9fb14c22a2e62 \
                    file://python_examples/LICENSE_FOR_EXAMPLE_PROGRAMS.txt;md5=064f53ab40ea2b6a4bba1324149e4fde \
"
DEPENDS = "cmake-native"

inherit  pypi setuptools3

但是当 do_compile() 运行时，我收到以下错误消息：

| [100%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/line.cpp.o
| [100%] Linking CXX shared module build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so
| build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/bin/aarch64-poky-linux/../../libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/8.3.0/ld: build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/libsqlite3.so: error adding symbols: file in wrong format
| collect2: error: ld returned 1 exit status
| CMakeFiles/_dlib_pybind11.dir/build.make:445: recipe for target 'build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so' failed
| make[2]: *** [build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so] Error 1
| CMakeFiles/Makefile2:116: recipe for target 'CMakeFiles/_dlib_pybind11.dir/all' failed
| make[1]: *** [CMakeFiles/_dlib_pybind11.dir/all] Error 2
| Makefile:83: recipe for target 'all' failed
| make: *** [all] Error 2
| Traceback (most recent call last):
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 223, in <module>
|     setup(
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/site-packages/setuptools/__init__.py", line 144, in setup
|     return distutils.core.setup(**attrs)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/core.py", line 148, in setup
|     dist.run_commands()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 966, in run_commands
|     self.run_command(cmd)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
|     cmd_obj.run()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/command/build.py", line 135, in run
|     self.run_command(cmd_name)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command
|     self.distribution.run_command(command)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
|     cmd_obj.run()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 135, in run
|     self.build_extension(ext)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 175, in build_extension
|     subprocess.check_call(cmake_build, cwd=build_folder)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/subprocess.py", line 364, in check_call
|     raise CalledProcessError(retcode, cmd)
| subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--config', 'Release', '--', '-j8']' returned non-zero exit status 2.
| WARNING: exit code 1 from a shell command.
| 

看起来问题发生在 cmake 尝试链接共享对象 _dlib_pybind11.cpython-38-aarch64-linux-gnu.so 时。链接器抱怨以下错误

 adding symbols: file in wrong format 

我认为链接器正在将目标对象与本机对象混合，但我不习惯 cmake，所以我不知道如何阻止它使用 recipe-sysroot-native 的路径并使用我的目标 sysroot，如果我删除 cmake-native 并仅使用 DEPENDS="cmake"，setup.py 失败，因为它根本找不到 cmake...

希望你能帮助我或给我任何可以尝试的想法。

BR，

更新 1

正如@Nayfe 指出的那样，dlib/setup.py 有一个 --set 选项来传递 CMAKE 配置变量，下面是一个已经对我有用的配方，我可以毫无问题地导入 dlib。

SUMMARY = "A toolkit for making real world machine learning and data analysis applications"
HOMEPAGE = "https://pypi.python.org/pypi/dlib"
PYPI_PACKAGE = "dlib"
LICENSE = "Boost-Software"
SRC_URI[md5sum] = "1e7e357d7d54e86267ef60f606cb40e1"
LIC_FILES_CHKSUM = "file://dlib/LICENSE.txt;md5=2c7a3fa82e66676005cd4ee2608fd7d2 \
                    file://dlib/external/libpng/LICENSE;md5=243135ddedf702158f9170807cbcfb66 \
                    file://dlib/external/pybind11/LICENSE;md5=beb87117af69fd10fbf9fb14c22a2e62 \
                    file://python_examples/LICENSE_FOR_EXAMPLE_PROGRAMS.txt;md5=064f53ab40ea2b6a4bba1324149e4fde \
"
DEPENDS = "sqlite3 "

inherit pypi cmake setuptools3
INSANE_SKIP_${PN} = "already-stripped"                                                                            

DISTUTILS_BUILD_ARGS_append = " \
      --set CMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
"

Answer 1

也许配方可以优化，但以下有效

• python3-dlib_19.21.bb

SUMMARY = "A toolkit for making real world machine learning and data analysis applications"
HOMEPAGE = "http://dlib.net/"
SECTION = "devel/python"
LICENSE = "BSL-1.0"
LIC_FILES_CHKSUM = "file://dlib/LICENSE.txt;md5=2c7a3fa82e66676005cd4ee2608fd7d2"              

DEPENDS = "sqlite3"

SRC_URI = "git://github.com/davisking/dlib"
SRCREV = "9117bd784328d9ac40ffa1f9cf487633a8a715d7"

S = "${WORKDIR}/git"

DISTUTILS_BUILD_ARGS_append = " \
      --set CMAKE_INSTALL_PREFIX:PATH=${prefix} \
      --set CMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir'), d.getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir'), d.getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_LIBEXECDIR:PATH=${@os.path.relpath(d.getVar('libexecdir'), d.getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_SYSCONFDIR:PATH=${sysconfdir} \
      --set CMAKE_INSTALL_SHAREDSTATEDIR:PATH=${@os.path.relpath(d.getVar('sharedstatedir'), d.  getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_LOCALSTATEDIR:PATH=${localstatedir} \
      --set CMAKE_INSTALL_LIBDIR:PATH=${@os.path.relpath(d.getVar('libdir'), d.getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_INCLUDEDIR:PATH=${@os.path.relpath(d.getVar('includedir'), d.getVar('prefix') + '/')} \
      --set CMAKE_INSTALL_DATAROOTDIR:PATH=${@os.path.relpath(d.getVar('datadir'), d.getVar('prefix') + '/')} \
      --set PYTHON_EXECUTABLE:PATH=${PYTHON} \
      --set Python_EXECUTABLE:PATH=${PYTHON} \
      --set Python3_EXECUTABLE:PATH=${PYTHON} \
      --set LIB_SUFFIX=${@d.getVar('baselib').replace('lib', '')} \
      --set CMAKE_INSTALL_SO_NO_EXE=0 \
      --set CMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
      --set CMAKE_NO_SYSTEM_FROM_IMPORTED=1 \
      --set CMAKE_LIBRARY_OUTPUT_DIRECTORY=${B} \
"

do_configure() {
    distutils3_do_configure
}

do_compile() {
    distutils3_do_compile
}

do_install() {
    distutils3_do_install
}

inherit cmake setuptools3 python3native

INSANE_SKIP_${PN} = "already-stripped"
RDEPENDS_${PN} += "python3-core"