bitbake grpc交叉编译/配置失败，出现错误c-ares::cares引用文件/usr/lib/libcares.so.2.2.0
bitbake grpc交叉编译/配置失败，出现错误c-ares::cares引用文件/usr/lib/libcares.so.2.2.0
提问于 2018-07-19 01:21:22
在开放嵌入的grpc中构建grpc时，我遇到了查找c-are依赖关系的问题。在配置过程中查找c-are依赖关系时，日志中的错误显示为-
--
Found ZLIB: ....../poky/build/tmp-glibc/sysroots/arm7/usr/lib/libz.so (found version "1.2.8")
CMake Error at ....../poky/build/tmp-glibc/sysroots/arm7/usr/lib/cmake/c-ares/c-ares-targets.cmake:70 (message):
The imported target "c-ares::cares" references the file
"/usr/lib/libcares.so.2.2.0"
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
"/home/...../poky/build/tmp-glibc/sysroots/arm7/usr/lib/cmake/c-ares/c-ares-targets.cmake"
but not all the files it references.--
问题似乎是cmake如何配置c-are的导入前缀，该前缀在文件- poky/build/tmp-glibc/sysroots/arm7/usr/lib/cmake/c-ares/c-ares-targets.cmake.中的配置如下我认为它应该是进入目标分段目录的路径
set(_IMPORT_PREFIX "/usr")
有人能帮我找出这里的问题吗？为了获得正确的_IMPORT_PREFIX，需要在c-are配方中配置什么？？任何帮助都是非常感谢的。谢谢
回答 1
Stack Overflow用户
发布于 2019-05-31 07:14:41
今天，当我在一个旧的(菊花式) BitBake环境中构建一个新的gRPC时，我遇到了这个问题。我找到的解决方案要么是向后移植this upstream change to the cmake.bbclass，要么是通过EXTRA_OECMAKE变量将.bbappend中更新的变量定义修改为cmake调用。
我选择了后者，因为我似乎只需要c-ares，并希望限制我的影响。我并没有深入研究c-are和其他gRPC依赖项(例如gflag)如何生成CMake导出目标文件之间的区别。我假设有某种方法可以在各个项目的CMakeLists.txt文件中生成最终目标路径。
diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass
index b18152a8ed..5203d8aca1 100644
--- a/meta/classes/cmake.bbclass
+++ b/meta/classes/cmake.bbclass
@@ -108,15 +108,15 @@ cmake_do_configure() {
${OECMAKE_SITEFILE} \
${OECMAKE_SOURCEPATH} \
-DCMAKE_INSTALL_PREFIX:PATH=${prefix} \
- -DCMAKE_INSTALL_BINDIR:PATH=${bindir} \
- -DCMAKE_INSTALL_SBINDIR:PATH=${sbindir} \
- -DCMAKE_INSTALL_LIBEXECDIR:PATH=${libexecdir} \
+ -DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir', True), d.getVar('prefix', True))} \
+ -DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir', True), d.getVar('prefix', True))} \
+ -DCMAKE_INSTALL_LIBEXECDIR:PATH=${@os.path.relpath(d.getVar('libexecdir', True), d.getVar('prefix', True))} \
-DCMAKE_INSTALL_SYSCONFDIR:PATH=${sysconfdir} \
- -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${sharedstatedir} \
+ -DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=${@os.path.relpath(d.getVar('sharedstatedir', True), d. getVar('prefix', True))} \
-DCMAKE_INSTALL_LOCALSTATEDIR:PATH=${localstatedir} \
- -DCMAKE_INSTALL_LIBDIR:PATH=${libdir} \
- -DCMAKE_INSTALL_INCLUDEDIR:PATH=${includedir} \
- -DCMAKE_INSTALL_DATAROOTDIR:PATH=${datadir} \
+ -DCMAKE_INSTALL_LIBDIR:PATH=${@os.path.relpath(d.getVar('libdir', True), d.getVar('prefix', True))} \
+ -DCMAKE_INSTALL_INCLUDEDIR:PATH=${@os.path.relpath(d.getVar('includedir', True), d.getVar('prefix', True))} \
+ -DCMAKE_INSTALL_DATAROOTDIR:PATH=${@os.path.relpath(d.getVar('datadir', True), d.getVar('prefix', True))} \
-DCMAKE_INSTALL_SO_NO_EXE=0 \
-DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
-DCMAKE_VERBOSE_MAKEFILE=1 \页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51407735
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