QMAKE：QMAKESPEC 尚未设置
我最近重新编译了 Qt，以便可以使用静态库而不是共享库。但现在，当我尝试编译我的项目时，出现以下错误：
QMAKESPEC尚未设置，因此无法推断配置。
这似乎是一个常见问题，我在发布之前做了一些研究。让我困惑的是我确实设置了 QMAKESPEC 环境变量。这是 printenv QMAKESPEC 的输出
/usr/local/Trolltech/Qt-4.4.0/mkspecs/linux-g++
另外，这里是 qmake -query QMAKESPEC 的输出
linux-g++
我也尝试过使用这些值，但似乎 qmake 根本看不到该变量... QTDIR 也被正确指定。
我也尝试过重新编译Qt并重新安装它。
感谢您的帮助。
I have recently recompiled Qt so that I can use static instead of shared libraries. But now, when I try to compile my project, I get the following error:
QMAKESPEC has not been set, so configuration cannot be deduced.
It seems like a common problem and I did do some research before posting. What's puzzling me is that I did set the QMAKESPEC env var. Here is the output of printenv QMAKESPEC
/usr/local/Trolltech/Qt-4.4.0/mkspecs/linux-g++
Also, here is the output of qmake -query QMAKESPEC
linux-g++
I have also tried playing around with the values, but it seems that qmake can't see that variable at all... QTDIR is also specified properly.
I have also tried to recompile Qt and reinstall it.
Thanks for your help.
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只需在运行 qmake 之前将其添加到脚本中即可
。 qmake 现在已安装。
Just add this to a script before running qmake
qmake is now installed.
如果你懒得做额外的 set-env 事情，这里做的是单行：
其他平台也是如此
if you are lazy to do extra set-env stuff, do here is a one liner:
same goes for other platforms
我遇到了同样的问题并通过安装 libqt4-dev 包解决了它。
I had the same problem and solved it by installing the libqt4-dev package.
从 4.8 开始，qmake 拥有一个持久信息系统，可以使用
-set选项定义该系统，并使用-query进行查询。有关更多详细信息，请参阅配置 qmake 的环境 qmake 4.8 和 qmake 5.0 的配置 qmake。
From 4.8 on, qmake has a system of persistent information that can be defined using the
-setoption, and consulted using-query.For more detail, consult the Configuring qmake's Environment for qmake 4.8, and Configuring qmake for qmake 5.0.
好吧，抱歉，我想我知道问题出在哪里。我一直在从 /usr/bin/ 中留下的旧 Qt 安装中获取 qmake。我现在已经删除了它，并打算重新尝试安装 Qt。希望它会起作用=）
Ok, sorry, I think I know what's the problem. I have been picking up qmake from the old Qt installation that was left in /usr/bin/. I have deleted it now, and going to re-try installing Qt. Hope it will work =)