blocks|key|146764|text|根据我的经验，这个问题最容易解决的方法是将包含qmake的文件夹放入PATH环境变量中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|146765|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In my experience, this problem is most easily solved by putting the folder containing qmake in your PATH environment variable.

blocks|key|146789|text|我解决了我的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|146790|使用grep命令查找QT_SELECT，发现QT_SELECT与/usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf文件相关。从“默认”文件名开始，我假设它就是被视为QT_SELECT的文件。qtchooser+-l提供的其他配置位于/usr/share/qtchooser/和/usr/lib/x86_64-linux-gnu/qtchooser目录中。|offset|length|style|CODE|146791|这样的配置文件有两行路径。我刚刚修改了这两行代码，首先指向我的Qt目录，然后指向我的Qt目录。然后我可以看到qtchooser+-print-env向我的Qt显示了QTTOOLDIR和QTLIBDIR。|146792|然后我可以很容易地用CMake构建Qt4库，qjson被正确地找到了。|146793|entityMap^0|0|2|4|W|1N|3L|C|46|L|4S|Z|0|1I|K|2A|9|2K|8|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]|$D|R|E|S|F|G]|$D|T|E|U|F|G]|$D|V|E|W|F|G]|$D|X|E|Y|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@$D|10|E|11|F|G]|$D|12|E|13|F|G]|$D|14|E|15|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|16|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|M|$]]

I solved my problem.

Looking for QT_SELECT with <code>grep</code> command I found that QT_SELECT is related to <code>/usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf</code> file. From the "default" file name I assumed that it is what is seen as QT_SELECT. Other configs presented with <code>qtchooser -l</code> are in <code>/usr/share/qtchooser/</code> and <code>/usr/lib/x86_64-linux-gnu/qtchooser</code> directories.

Such a config file has two lines with paths. I just changed these lines, first pointing to my Qt bin directory and second pointing to my Qt lib directory. Then I could see that <code>qtchooser -print-env</code> shows <code>QTTOOLDIR</code> and <code>QTLIBDIR</code> to my Qt.

Then I could easily build qjson library with CMake, Qt4 was found correctly.

blocks|key|4653436|text|只要试试"sudo+apt-get+install+qt-sdk“就行了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4653437|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

just try "sudo apt-get install qt-sdk" it works for me

blocks|key|4653469|text|最简单的解决方案是在gem期望找到的目录中添加一个链接。在Ubuntu+14.04上，qmake位于/usr/bin中。简单的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4653470|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Simplest solution was add a link in the directory that the gem expected to find it. On Ubuntu 14.04 it qmake lives in /usr/bin. Simple solution.

blocks|key|146889|text|以下是答案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|146890|https://askubuntu.com/questions/540746/ubuntu-14-04-qt5-development-libraries/540757#540757|offset|length|146891|看起来|146892|我错过的就是apt-file+search+Qt5CoreConfig.cmake。这让我想到了：|style|CODE|146893|qtbase5-dev:+/usr/lib/x86_64-linux-gnu/cmake/Qt5Core/Qt5CoreConfig.cmake|code-block|syntax|javascript|146894|安装它似乎会导致CMake找到Qt5。当直接从仍然安装的qt4调用though...some残留物时，qt4仍然报告同样的问题。|146895|至于qmake问题，可以通过以下方式解决：|146896|sudo+apt-get+install+qt5-default|146897|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2J|0|0|0|6|Z|0|0|0|2|5|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]]|A|$]]|$1|F|3|G|5|6|7|18|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|19|8|@$D|1A|E|1B|J|K]]|9|@]|A|$]]|$1|L|3|M|5|N|7|1C|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1E|8|@$D|1F|E|1G|J|K]]|9|@]|A|$]]|$1|U|3|V|5|N|7|1H|8|@]|9|@]|A|$O|P]]|$1|W|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|C]]]]

Here is the answers

<a href="https://askubuntu.com/questions/540746/ubuntu-14-04-qt5-development-libraries/540757#540757">https://askubuntu.com/questions/540746/ubuntu-14-04-qt5-development-libraries/540757#540757</a>

Seems

<code>apt-file search Qt5CoreConfig.cmake</code> was what I was missing. This got me:

<pre><code>qtbase5-dev: /usr/lib/x86_64-linux-gnu/cmake/Qt5Core/Qt5CoreConfig.cmake
</code></pre>

Installing that seems to lead to CMake finding Qt5. <code>qmake</code> still reports the same problem when directly called though...some remnant from qt4 still installed it seems...

As for the <code>qmake</code> problem, this is fixed by:

<pre><code>sudo apt-get install qt5-default
</code></pre>

blocks|key|4653582|text|在我的例子中，只是qtchooser缺少“默认”配置。我认为cmake只是执行qtchooser并寻找一个“默认”的配置文件名。您可以通过执行以下操作安装任何配置文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4653583|qtchooser+-install+<arbitrary_name>+<path_to_qmake>|code-block|syntax|javascript|4653584|在我的例子中，我只是简单地提供了"default“作为任意名称...这样就在适当的位置创建了default.conf文件，一切都很顺利。我不认为qt的命名版本是有限制的。如果您以root用户身份执行此操作，则它应该对所有用户都有效。|4653585|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

In my case it was just that qtchooser was missing the "default" configuration.
I figured cmake is just executing qtchooser and looking for a "default" configuration file name.
You can install any configuration file by doing the following:

<pre><code>qtchooser -install &lt;arbitrary_name&gt; &lt;path_to_qmake&gt;
</code></pre>

In my case I simply provided "default" as the arbitrary name... this created the default.conf file in the appropriate locations and all is well. I don't think there is a limit to how many named versions of qt you have.
If you do this as root it should work for all users.

blocks|key|4653615|text|在我的旧RHEL发行版上，这为我做到了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4653616|sudo+yum+install+qt-devel.x86_64|code-block|syntax|javascript|4653617|仅使用qt-base不能与cmake一起工作。|4653618|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

On my old RHEL distro, this did it for me:

<pre><code>sudo yum install qt-devel.x86_64
</code></pre>

Just the qt-base one wouldn't work with cmake.

blocks|key|4653670|text|1)您的qtchooser配置文件在哪里？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4653671|++$:+locate+qtchooser+%7C+grep+conf|code-block|syntax|javascript|4653672|2)在conf文件列表中，可能有一个名为"default.conf“的文件，这个文件是指向其他文件(4.conf或qt4.conf或5.conf或qt5.conf)之一的链接。选择一个对你也有意义的，并创建一个链接。|4653673|假设您的默认文件路径为|4653674|/usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf|4653675|创建备份：|4653676|++$:+cd+$(dirname+/usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf)
++$:+cp+-av+default.conf+default.conf_backup|4653677|假设您的目标是/usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf|4653678|然后：|4653679|++$:+sudo+ln+-s+/usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf+default.conf|4653680|3)您的qmake的路径对吗？|4653681|检查qmake位置|4653682|++$:+locate+qmake+%7C+grep+bin|4653683|是否与修改后的qtchooser/default.conf中显示的相同？|4653684|++$:+cat+/usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf|4653685|如果答案是肯定的，那么你就完成了。如果anser为no，则需要修改文件：|4653686|4653687|++$:+cd+$(dirname+/usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf)
++$:+cp+-av+qt5.conf+qt5.conf_backup|4653688|编辑文件并将路径更改为qmake位置|4653689|++$+sudo+vi+qt5.conf|4653690|现在应该做了。|4653691|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1K|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1L|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1M|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1N|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1O|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1P|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1R|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1S|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1T|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1U|8|@]|9|@]|A|$]]|$1|10|3|11|5|D|7|1V|8|@]|9|@]|A|$E|F]]|$1|12|3|13|5|6|7|1W|8|@]|9|@]|A|$]]|$1|14|3|15|5|D|7|1X|8|@]|9|@]|A|$E|F]]|$1|16|3|17|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|18|3|N|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|19|3|1A|5|D|7|20|8|@]|9|@]|A|$E|F]]|$1|1B|3|1C|5|6|7|21|8|@]|9|@]|A|$]]|$1|1D|3|1E|5|D|7|22|8|@]|9|@]|A|$E|F]]|$1|1F|3|1G|5|6|7|23|8|@]|9|@]|A|$]]|$1|1H|3|-4|5|6|7|24|8|@]|9|@]|A|$]]]|1I|$]]

1) Where is your qtchooser configuration file?

<pre><code> $: locate qtchooser | grep conf
</code></pre>

2) From the list of conf files, probably there is one call "default.conf"
 This one is a link to one of the others (4.conf or qt4.conf or 5.conf or qt5.conf).
 Choose the one that makes sense too you, and create a link to it.

Suppose your default file path is

/usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf

Create backup:

<pre><code> $: cd $(dirname /usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf)
 $: cp -av default.conf default.conf_backup
</code></pre>

Let's say you target is 
 /usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf

Then:

<pre><code> $: sudo ln -s /usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf default.conf
</code></pre>

3) Is the path to your qmake right?

Check qmake location

<pre><code> $: locate qmake | grep bin
</code></pre>

Is the same one as indicated in your modified qtchooser/default.conf?

<pre><code> $: cat /usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf
</code></pre>

If the answer is YES, then you are done.
 If the anser is no, then you need to modify the file:

Create backup:

<pre><code> $: cd $(dirname /usr/lib/x86_64-linux-gnu/qtchooser/qt5.conf)
 $: cp -av qt5.conf qt5.conf_backup
</code></pre>

Edit file and change path to your qmake location

<pre><code> $ sudo vi qt5.conf
</code></pre>

Now it should be done.

I am using Debian OS and I'm trying to point to cmake where is my Qt4.

I try to build qjson library and with its CMakeLists.txt:
<a href="http://pastebin.com/fKNp0Qgy">http://pastebin.com/fKNp0Qgy</a>

I get:

<pre><code>Qt5 not found, searching for Qt4
qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake': No such file or directory
CMake Error at /usr/share/cmake-2.8/Modules/FindQt4.cmake:1386 (message):
 Found unsuitable Qt version "" from NOTFOUND, this code requires Qt 4.x
Call Stack (most recent call first):
 CMakeLists.txt:55 (FIND_PACKAGE)


-- Configuring incomplete, errors occurred!
</code></pre>

I'm not familiar with CMake and Qt config, but I'm curious what setting force CMake FIND_PACKAGE to look into '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake' for qmake.
I have installed Qt 4.8.5 from source and I have Qt4 bin folder in completely different directory.

CMake doesn't know where is Qt4 qmake

Ubuntu

Debian

我使用的是Debian OS，我正在尝试指向cmake where is my Qt4。我尝试构建qjson库，并使用它的CMakeLists.txt：我得到了：Qt5 not found, searching for Qt4qmake: could not exec '/usr/lib/x86_64-linux-gn...

问CMake不知道Qt4 qmake在哪里
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