Question

我正在尝试使用bitbake构建一个非常简单的配方，我无法弄清楚为什么不能包含opencv。我发现的所有示例都使用此设置，并且似乎没有问题链接到opencv。我对bitbake很新，并且担心我会误解一些非常简单的东西。提前感谢您提供的任何帮助。

Recipie：

UMMARY = "Hello"
SRCNAME = "Hello"

depends += "opencv"

LICENSE = "PSF"
LIC_FILES_CHKSUM = "file://${TOPDIR}/Yocto/Recipies/LICENSE.txt;md5=7424386ffe323e815ee62ee9ad591dd8"

SRCREV = "master"
SRC_URI = "https://developer-binaries.s3.amazonaws.com/hello-1.0.zip"
SRC_URI[md5sum] = "ca5940b7e30c489c4304c467252980f5"

inherit pkgconfig cmake

CMakeLists：

PROJECT(Hello)

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11)

FIND_PACKAGE(OpenCV REQUIRED)

ADD_EXECUTABLE(Hello
    Main.cpp)

INSTALL(FILES
 ${CMAKE_BINARY_DIR}/Hello
  DESTINATION ${exec_prefix}/bin)

Bitbake错误：

ERROR: Function failed: do_configure (log file is located at /home/ubuntu/oe-core/build/out-eglibc/work/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/hello/1.0-r0/temp/log.do_configure.5288)
ERROR: Logfile of failure stored in: /home/ubuntu/oe-core/build/out-eglibc/work/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/hello/1.0-r0/temp/log.do_configure.5288
Log data follows:
| DEBUG: Executing python function sysroot_cleansstate
| DEBUG: Python function sysroot_cleansstate finished
| DEBUG: SITE files ['endian-little', 'bit-32', 'arm-common', 'common-linux', 'common-glibc', 'arm-linux', 'arm-linux-gnueabi', 'common']
| DEBUG: Executing shell function autotools_preconfigure
| DEBUG: Shell function autotools_preconfigure finished
| DEBUG: Executing python function autotools_copy_aclocals
| DEBUG: Python function autotools_copy_aclocals finished
| DEBUG: Executing shell function do_configure
| -- The C compiler identification is GNU 4.8.3
| -- The CXX compiler identification is GNU 4.8.3
| -- Check for working C compiler: /home/ubuntu/oe-core/build/out-eglibc/sysroots/x86_64-linux/usr/bin/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi-gcc
| -- Check for working C compiler: /home/ubuntu/oe-core/build/out-eglibc/sysroots/x86_64-linux/usr/bin/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi-gcc -- works
| -- Detecting C compiler ABI info
| -- Detecting C compiler ABI info - done
| -- Check for working CXX compiler: /home/ubuntu/oe-core/build/out-eglibc/sysroots/x86_64-linux/usr/bin/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi-g++
| -- Check for working CXX compiler: /home/ubuntu/oe-core/build/out-eglibc/sysroots/x86_64-linux/usr/bin/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi-g++ -- works
| -- Detecting CXX compiler ABI info
| -- Detecting CXX compiler ABI info - done
| CMake Error at CMakeLists.txt:5 (FIND_PACKAGE):
|   By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has
|   asked CMake to find a package configuration file provided by "OpenCV", but
|   CMake did not find one.
| 
|   Could not find a package configuration file provided by "OpenCV" with any
|   of the following names:
| 
|     OpenCVConfig.cmake
|     opencv-config.cmake
| 
|   Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
|   "OpenCV_DIR" to a directory containing one of the above files.  If "OpenCV"
|   provides a separate development package or SDK, be sure it has been
|   installed.
| 
| 
| -- Configuring incomplete, errors occurred!
| See also "/home/ubuntu/oe-core/build/out-eglibc/work/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/hello/1.0-r0/build/CMakeFiles/CMakeOutput.log".
| WARNING: exit code 1 from a shell command.
| ERROR: Function failed: do_configure (log file is located at /home/ubuntu/oe-core/build/out-eglibc/work/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/hello/1.0-r0/temp/log.do_configure.5288)
ERROR: Task 6 (/home/ubuntu/oe-core/build/Yocto/Recipies/hello.bb, do_configure) failed with exit code '1'
NOTE: Tasks Summary: Attempted 540 tasks of which 539 didn't need to be rerun and 1 failed.
NOTE: Writing buildhistory
No currently running tasks (537 of 549)

Answer 1

尝试改变＆＃34;取决于＆＃34;到＆＃34; DEPENDS＆＃34; - 案件事宜。

Answer 2

在yocto build中安装OpenCV的最快捷方式之一

git clone git://git.openembedded.org/bitbake/
git clone git://git.openembedded.org/openembedded-core
git clone git://git.openembedded.org/meta-openembedded

将bitbake链接到openembedded-core并配置oe-core。

ln -s <Path>/bitbake <Path>/openembedded-core/bitbake
source openembedded-core/oe-init-build-env

现在，编辑你的bblayers.conf文件

BBLAYERS？=“\ ~Path / openembedded-core / meta \
~Path / meta-openembedded / meta-oe \“

现在，在openembedded-core / meta / recipes-core / images / core-image-minimal.bb中，

IMAGE_INSTALL + =“opencv libavcodec-dev libavformat-dev libswscale-dev”

PACKAGECONFIG_pn-opencv =“eigen jpeg libav png tiff”

保存并关闭文件。

另外，将以下行添加到local.conf，因为openfv依赖项是由商业化的ffmpeg配方提供的。

LICENSE_FLAGS_WHITELIST += "commercial"

现在，您可以执行以下命令来烘焙OpenCV的修改配方：

bitbake core-image-minimal

Bitbake配方包括opencv

2 个答案: