nickhansenrf's questions

我正在使用一个名为 gnuradio-companion 的程序。如果我在没有 root 权限的情况下启动它，我将无法保存任何内容，因为我没有读/写权限。它给：

/usr/lib/python2.7/dist-packages/gnuradio/grc/gui/FileDialogs.py:102: GtkWarning: Failed to read filechooser settings from "/home/nick/.config/gtk-2.0/gtkfilechooser.ini": Permission denied

如果我开始

sudo gnuradio-companion

然后我在滥用 sudo，我也得到了

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'

因为我丢失了运行时变量 XDG_RUNTIME_DIR。我可以用

sudo -E

保留环境变量，但后来我得到

QStandardPaths: wrong ownership on runtime directory /run/user/1000, 1000 instead of 0

我猜是因为我只是在借用 root 权限。使用 sudo visudo 来修改运行时环境会产生同样的效果。

我应该如何配置读/写权限和运行时环境来解决这个问题？

Ettus 研究提供了18.04的大量依赖项列表，这些依赖项几乎适用于从源代码编译 gnu radio。

cmake 给出以下配置错误：

-- Python checking for PyQt5 - found
-- Checking for module 'Qt5Qwt6'
--   No package 'Qt5Qwt6' found
-- QWT Version: 6.1.3
-- Found Qwt: /usr/lib/libqwt.so  

但是，根据我拥有的软件包（似乎每个可能的版本......也许太多了）我应该拥有它需要的东西。

apt-cache search qwt
libqwt-dev - Qt widgets library for technical applications (development, qt4)
libqwt-doc - Qt widgets library for technical applications (documentation)
libqwt-headers - Qt widgets library for technical applications (header files)
libqwt-qt5-6 - Qt widgets library for technical applications (runtime, qt5)
libqwt-qt5-dev - Qt widgets library for technical applications (development, qt5)
libqwt5-doc - Qt widgets library for technical applications (documentation)
libqwt5-qt4 - Qt4 widgets library for technical applications (runtime)
libqwt5-qt4-dev - Qt4 widgets library for technical applications (development)
libqwt6abi1 - Qt widgets library for technical applications (runtime, qt4)
libqwtmathml-dev - Text Engine for Qwt (development, qt4)
libqwtmathml-qt5-6 - Text Engine for Qwt (runtime, qt5)
libqwtmathml-qt5-dev - Text Engine for Qwt (development, qt5)
libqwtmathml6abi1 - Text Engine for Qwt (runtime, qt4)
libqwtplot3d-doc - 3D plotting library based on Qt/OpenGL (documentation)
libqwtplot3d-qt5-0 - 3D plotting library based on Qt5/OpenGL (runtime)
libqwtplot3d-qt5-dev - 3D plotting library based on Qt5/OpenGL (development)
python-guiqwt - efficient 2D data-plotting library - Python 2
python-guiqwt-doc - efficient 2D data-plotting library - Documentation
python-qwt - Pure Python implementation of Qwt - Python 2
python-qwt5-doc - Python Qwt5 technical widget library, documentation and examples
python-qwt5-qt4 - Python version of the Qwt5 technical widget library
python3-guiqwt - efficient 2D data-plotting library - Python 3
python3-qwt - Pure Python implementation of Qwt - Python 3
python-qwt-doc - Pure Python implementation of Qwt - Documentation

如何编辑 cmake 列表以正确找到它正在寻找的内容？