我正在从Debian迁移到Yocto。因此，我为其编写的许多专有软件包都依赖于Debian库，而这些库在Yocto中似乎无法直接使用。这可能是一个新手问题，但我正在努力弄清楚如何做到这一点。
下面是我用recipetool create生成的Makefile C项目的一个配方:
# Recipe created by recipetool
# This is the basis of a recipe and may need further editing in order to be fully functional.
# (Feel free to remove these comments when editing.)
# WARNING: the following LICENSE and LIC_FILES_CHKSUM values are best guesses - it is
# your responsibility to verify that the values are complete and correct.
#
# The following license files were not able to be identified and are
# represented as "Unknown" below, you will need to check them yourself:
# debian/copyright
LICENSE = "Unknown"
LIC_FILES_CHKSUM = "file://debian/copyright;md5=some-hash"
SRC_URI = "git://git@my-project.git;protocol=ssh"
# Modify these as desired
PV = "1.0+git${SRCPV}"
SRCREV = "<...>"
S = "${WORKDIR}/git"
DEPENDS = "systemd"
# NOTE: this is a Makefile-only piece of software, so we cannot generate much of the
# recipe automatically - you will need to examine the Makefile yourself and ensure
# that the appropriate arguments are passed in.
do_compile () {
oe_runmake my-project
}
可以看到，我已经指定了对systemd的依赖项。然而，我认为我真正需要的依赖是Debian软件包libsystemd。
每当我对这个食谱进行bitbake时，我都会得到以下内容:
NOTE: Executing Tasks
ERROR: <recipe-name> do_compile: oe_runmake failed
ERROR: <recipe-name> do_compile: Execution of '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/temp/run.do_compile.13271' failed with exit code 1:
make[1]: Entering directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
CC file-name.c
../file-name.c:6:10: fatal error: systemd/sd-daemon.h: No such file or directory
6 | #include <systemd/sd-daemon.h>
| ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[1]: *** [Makefile:93: build/file-name.o] Error 1
make[1]: Leaving directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
make: *** [Makefile:72: some-recipe] Error 2
WARNING: exit code 1 from a shell command.
ERROR: Logfile of failure stored in: /home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/temp/log.do_compile.13271
Log data follows:
| DEBUG: Executing shell function do_compile
| NOTE: make -j 24 my-project
| make[1]: Entering directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
| CC my-file.c
| ../my-file.c:6:10: fatal error: systemd/sd-daemon.h: No such file or directory
| 6 | #include <systemd/sd-daemon.h>
| | ^~~~~~~~~~~~~~~~~~~~~
| compilation terminated.
| make[1]: *** [Makefile:93: build/my-file.o] Error 1
| make[1]: Leaving directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
| make: *** [Makefile:72: my-project] Error 2
| ERROR: oe_runmake failed
| WARNING: exit code 1 from a shell command.
| ERROR: Execution of '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/temp/run.do_compile.13271' failed with exit code 1:
| make[1]: Entering directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
| CC my-file.c
| ../my-file.c:6:10: fatal error: systemd/sd-daemon.h: No such file or directory
| 6 | #include <systemd/sd-daemon.h>
| | ^~~~~~~~~~~~~~~~~~~~~
| compilation terminated.
| make[1]: *** [Makefile:93: build/my-file.o] Error 1
| make[1]: Leaving directory '/home/mitch/bin/yocto/project-name/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/recipe-name/1.0+gitAUTOINC+...-r0/git/src/core'
| make: *** [Makefile:72: my-recipe] Error 2
| WARNING: exit code 1 from a shell command.
|
ERROR: Task (/home/mitch/bin/yocto/project-name/layers/meta-project/recipes-main/my-recipe/my-recipe_git.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2166 tasks of which 2163 didn't need to be rerun and 1 failed.
总结一下，我的项目需要systemd提供的库。我在这里遗漏了什么可以让我完成这个项目?有办法建立它吗?
好吧，我想我想多了。Yocto使用您的系统来编译项目。因此，我所需要做的就是在我的主机上提供systemd头文件。由于我正在运行Ubuntu，在我的主机上安装libsystemd-dev修复了这个问题。我认为 systemd上的DEPENDS仍然需要在Yocto系统上运行。