如何设置 qwt 路径或环境变量
我已经安装了 qwt 并将路径包含
INCLUDEPATH += /usr/local/qwt-6.0.0-rc5/include
LIBS += -L/usr/local/qwt-6.0.0-rc5/lib -lqwt
在我的配置文件中。
但是当我运行我的程序时，我收到错误
error while loading shared libraries: libqwt.so.6: cannot open shared object file: No such file or directory /home/cv/abc/abc exited with code 127
当使用终端时我设置了路径
export LD_LIBRARY_PATH=/usr/local/qwt-6.0.0-rc5
然后当我运行程序（使用界面的播放按钮）时我仍然收到错误。我不知道我错在哪里，我完全陷入困境。有人可以详细解释一下如何让 qwt 与 qt 一起工作吗？版本有什么区别吗？请详细解释一下我将非常感谢！
我使用的是ubuntu 10.04。
谢谢
I have installed qwt and include the path
INCLUDEPATH += /usr/local/qwt-6.0.0-rc5/include
LIBS += -L/usr/local/qwt-6.0.0-rc5/lib -lqwt
in my profile.
But when I run my program i get the error
error while loading shared libraries: libqwt.so.6: cannot open shared object file: No such file or directory /home/cv/abc/abc exited with code 127
When using terminal I set the path
export LD_LIBRARY_PATH=/usr/local/qwt-6.0.0-rc5
Then when I run the program (using the play button of the interface) I am still getting an error. I don't know where I'm wrong, I'm totally stuck. Can someone explain me in detail how to make qwt work with qt? Does version make any difference? Please explain me in detail I shall be very thank full!
I am using ubuntu 10.04.
Thanks
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可以通过ubuntu方式安装qwt
aptitude install libqwt-dev
此外，在 qtreator 中您还可以为您的项目指定运行环境。在左侧面板中选择“项目”，然后转到“运行设置”。
You can install qwt in ubuntu way
aptitude install libqwt-dev
Also in qtreator you can specify Run Enviroment for your project. Select Projects in left panel and goto Run Setting.
您是否将 Qwt 的路径添加到运行时链接器中？
在
/etc/ld.so.conf.d/中创建一个文件qwt.conf，您只需在其中写入[your-qwt-path]/ 的路径库。编辑：当然，您需要 root 权限才能在那里创建文件。另外，我忘了提及创建该文件后您将需要
sudo ldconfig。最后，直到我重新启动系统后它才起作用。 :)Did you add the path to Qwt to the run-time linker?
In
/etc/ld.so.conf.d/create a fileqwt.confwhere you just write the path to[your-qwt-path]/lib.EDIT: You will, of course, need root privileges to create a file there. Also, I forgot to mention you will need to
sudo ldconfigafter creating that file. Lastly, it didn't work until I rebooted my system. :)