错误构建的树莓派的Qt库 [英] An error building Qt libraries for the raspberry pi

问题描述

我试图为我的RPI编译Qt 5库，但它总是崩溃。

I am trying to compile the Qt 5 libraries for my RPI, but it always crashes.

这些是我试图遵循的指南：

These are the guides I have tried to follow:

http://qt-project.org/wiki/RaspberryPi_Beginners_guide

http://qt-project.org/wiki/RaspberryPi

我已经根据指南下载了交叉编译器和sysroot-image，并从git仓库中提取了Qt5源码。

I have downloaded the cross-compiler and sysroot-image according to the guide and pulled the Qt5 sources from the git repo.

我现在被困在 make 。

这是我收到的错误：

.obj/release-shared/qlibrary_unix.o: In function `QLibraryPrivate::load_sys()':
qlibrary_unix.cpp:(.text+0xf84): warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.a(dlopen.o): In function `dlopen':
(.text+0xc): undefined reference to `__dlopen'
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.a(dlclose.o): In function `dlclose':
(.text+0x0): undefined reference to `__dlclose'
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.a(dlsym.o): In function `dlsym':
(.text+0xc): undefined reference to `__dlsym'
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.a(dlerror.o): In function `dlerror':
(.text+0x0): undefined reference to `__dlerror'
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libm.a(feholdexcpt.o): In function `feholdexcept':
(.text+0x48): undefined reference to `_dl_hwcap'
/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libm.a(fesetenv.o): In function `fesetenv':
(.text+0x64): undefined reference to `_dl_hwcap'
collect2: virhe: ld:n paluuarvo oli 1                                           # collect2: error: ld returnvalue was 1
make[2]: *** [../../lib/libQt5Core.so.5.0.0] Virhe 1                            # Error 1
make[2]: Poistutaan hakemistosta "/home/esa/qtonpi/qt5/qtbase/src/corelib"      # Leaving directory
make[1]: *** [sub-corelib-make_first] Virhe 2                                   # Error 2
make[1]: Poistutaan hakemistosta "/home/esa/qtonpi/qt5/qtbase/src"              # Leaving directory
make: *** [sub-src-make_first] Virhe 2                                          # Error 2

推荐答案

修复sysroot中库的路径。有些库是绝对路径的符号链接，当放置在系统中时会破坏。检查类似/home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.so或类似的东西。你应该看到那些被破坏的符号链接到绝对路径。修复所有这些。在您报告的文档中，提供了用于此目的的脚本。您是否运行它（https://gitorious.org/cross-compile-tools/cross-compile-tools/blobs/master/fixQualifiedLibraryPaths）？

Fix the paths of the libraries in your sysroot. Some libraries are symlinks to absolute paths which are broken when placed in your system. Check something like /home/esa/qtonpi/rpi_image/usr/lib/arm-linux-gnueabihf/libdl.so or similar. You should see those are broken symlinks to absolute paths. Fix all of those. In the documents you reported a script for this purpose is provided. Did you run it (https://gitorious.org/cross-compile-tools/cross-compile-tools/blobs/master/fixQualifiedLibraryPaths)?

尝试如果您仍然遇到问题，请检查此：我写了下了一些笔记编译的最新版本从git的喘气图像。

Try also to check this if you still encounter troubles: I wrote down some notes compiling a recent version from the git for the wheezy image.

这篇关于错误构建的树莓派的Qt库的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！