Tag: MacOs

How to deploy Qt application on MacOs

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Missing dylib libraries

If your application using some externals dynamic libraries (called .dylib in MacOs system), you have to provide all these libraries. The simplest way is to provide these libraries into the Application.app directory.

Find out which libraries are used

Qt provide really useful tool called “otool” which serves to lots of purpose. One of them is to detect which shared libraries are required by our application. For this purpose otool has parameter -L. The usage is following:

otool -L ./Test1.app/Contents/MacOS/Test1

Output could looks like this:

./Test1:
        libboost_iostreams.dylib (compatibility version 0.0.0, current version 0.0.0)
        libboost_filesystem.dylib (compatibility version 0.0.0, current version 0.0.0)
        libboost_system.dylib (compatibility version 0.0.0, current version 0.0.0)
        libboost_thread.dylib (compatibility version 0.0.0, current version 0.0.0)
        libboost_date_time.dylib (compatibility version 0.0.0, current version 0.0.0)
        libboost_regex.dylib (compatibility version 0.0.0, current version 0.0.0)
        /Users/dev/dev/SharedLibraries/libiconv/lib/libiconv.2.dylib (compatibility version 8.0.0, current version 8.0.0)
        /Users/dev/dev/ExternalLibraries/../SharedLibraries/libxml/lib/libxml2.2.dylib (compatibility version 10.0.0, current version 10.8.0)
        /Users/dev/dev/ExternalLibraries/../SharedLibraries/libxslt/lib/libxslt.1.dylib (compatibility version 3.0.0, current version 3.26.0)
        /Users/dev/dev/ExternalLibraries/../SharedLibraries/libxslt/lib/libexslt.0.dylib (compatibility version 9.0.0, current version 9.15.0)
        /Users/dev/dev/ExternalLibraries/yaml-cpp-0.2.5/build/libyaml-cpp.0.2.dylib (compatibility version 0.2.0, current version 0.2.5)
        QtGui.framework/Versions/4/QtGui (compatibility version 4.7.0, current version 4.7.0)
        QtCore.framework/Versions/4/QtCore (compatibility version 4.7.0, current version 4.7.0)
        /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.9.0)
        /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 625.0.0)
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.0)

Output from “otool” is simmilar to linux tool “ldd”.

The Mac Deployment Tool

Because manual copying and configuring all shared libraries to our application could be difficult, Qt have deployment tool which do all work for us. Tool is called “macdeployqt” and can be found in /Developer/Tools/Qt/macdeployqt.

 /Developer/Tools/Qt/macdeployqt ./GeneratedFilesMacOs/Debug/Test1.app

Note: Every time when you call macdeployqt tool, project have to be build from scratch. But is sufficient when whole result directory is removed and linked again:

rm -rf ./GeneratedFilesMacOs/Debug/Test1.app/
make

Git tips

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Show files status

git status #show all files
git statis -u -s #show untracked in short listing

Commit with message

git commit -m"text"

Recursive add files by mask to git

git add *.mask -A

Linux-recursive remove some files

find -iname '*mask' | xargs rm

How to create global .gitignore file

git config --global core.excludesfile /file-path/.gitignore-global

TENG – c++ templating engine

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Project site: http://teng.sourceforge.net/?page=home

External project documentation: http://teng.olmik.net/

Latest TENG source code: http://teng.cvs.sourceforge.net/teng/ (Note: Source code referenced from main site isn’t latest! )

How to compile TENG on windows

Compilation under Windows is possible only using MinGW and with few modifications in TENG code (because there is few glitch which didn’t meet c++ standards). If you want more information or updated TENG version, please let me know.

Mac OS problem with samba mount

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Sometime after some time or when MacOS system is waked-up samba mounts stop working.

Instead of  mounting a drive reporting following error:

mount_smbfs: could not find mount point /mnt/disk_d: Socket is not connected</div>
mount_smbfs: could not find mount point /mnt/disk_e: Socket is not connected</div>
mount_smbfs: mount error: /mnt/disk_p: Socket is not connected</div>

After a little search I found following tip. It could help:

1. Click Start, and then click Run. 
2. Type regedit, and then click OK. 
3. Navigate to the following key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters 
4. In the right pane, double-click the IRPStackSize value.

NOTE: If the IRPStackSize value does not already exist, use the following procedure to create it:a. In the Parameters folder of the registry, right-click the right pane. 
b. Point to New, and then click DWord Value. 
c. Type IRPStackSize.

IMPORTANT: Type "IRPStackSize" exactly as it is displayed because the value name is case-sensitive. 

5. Change the Base to decimal. 
6. In the Value Data box, type a value that is larger than the value that is listed. 

If you created the IRPStackSize value using the procedure described in step 4, the default value is 15. It is recommended that you increase the value by 3. Therefore, if the previous value was 11, type 14, and then click OK. 
7. Close the Registry Editor. 
8. Restart the computer.

How to configure MacOs for Qt programming.

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How to configure script for automatic run after login

Create startup-script(or any other)file in your home directory. Then enter following command

nano startup-script
chmod 777 ./startup-script
sudo defaults write com.apple.loginwindow LoginHook /Users/thomas/.startup-script

Another solution is to create .bash_profile file, which is launched automatically by system.

or create

How to configure new search path

If you want to have bin folder in your home directory, enter following code snippet to your .profile file located in your home directory:

export PATH=$PATH:/Users/user_name/bin

Open file using:

nano ./.profile

Note:Path is separated by char “:”.

How to instal apt-get alternative for MacOS

Mac OS have apt-get alternative called “port“.

Additional notes

Realtek RTL81xx macOs version:

How to mount Windows drive from MacOs

As first, create some directory where you want to mount your shared drive

mkdir mnt
cd mnt
mkdir computer_d
mount -t smbfs //user_name:[email protected]/d computer_d

Conclusion & Note

It’s possible that all of these task can be done in simpler way, or can’t be done at all. All comments and tips are based on my current experience with my first MacOS configuration in my life 😉

Qt correct setup for QMAKESPEC, QTDIR and PATH

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When you want to use different configurations for different platforms in your .pro file, it’s necessary to correctly setup three variables: QMAKESPEC, QTDIR and PATH.

Here is how to configure for different platforms:

Microsoft Windows:

In SystemPropertes -> Enviroment variables add/update following values:

QTDIR = P:\QT\4.7.0
PATH = %QTDIR%\bin
QMAKESPEC=%QTDIR%\mkspecs\win32-msvc2005
LANG = en_US

Unix Bourne shell: (not tested)

QMAKESPEC=/usr/local/qt/mkspecs/linux-g++
PATH=$PATH:/local/qmake/bin
export QMAKESPEC PATH</pre>

Unix C shell: (not tested)

setenv QMAKESPEC /usr/local/qt/mkspecs/linux-g++
setenv PATH $PATH:/local/qmake/bin</pre>

Note

You can optionally use LANG variable to setup QtCreator language.

Old qt 3.0 guide: http://doc.trolltech.com/3.0/qmake-guide.html
How to configure enviroment: http://doc.qt.nokia.com/4.0/qmake-environment-reference.html

List of known issues and tips

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This is list of all known issues and problems which we had to solve during our first Qt installation on Linux, Windows and Mac.

Known errors

Error: undefined interface

What to do when compilation of QT crash with message “Error: undefined interface”.
http://www.qtforum.org/article/31561/error-when-building-libraries.html
http://www.qtcentre.org/threads/26245-Qt-4.6-api/qscriptextensionplugin.h(43)-Error-Undefined-interface

make: g++: Command not found

it’s necessary to instal g++ support (sudo apt-get install g+)

Basic XLib functionality test failed!

it’s necessary to instal xlib(xorg??) support (sudo apt-get install xorg-dev)

*** [sub-corelib-make_default-ordered] Error 2

Probably mishmash on 32bit / 64bit  system and QT versions.

undefined reference to `QEventDispatcherGlib::versionSupported()’

Probably missing libglib2.0-dev on your system. (sudo apt-get install libglib2.0-dev).

Undefined reference to QSslSocket::*

Missing OpenSSL library on your system. (sudo apt-get install libssl-dev)

gtk/gtk.h: No such file or directory

Missing gtk package. (sudo apt-get install libgtk2.0-dev ). After that its necessary to update db (sudo updatedb).

if system can’t find file gtk/gtk.h because gtk is stored in gtk-2.0 directory, add -I (capitalised i) param to configure with gtk path:

./configure -opensource -I /usr/include/gtk-2.0

cups/cups.h: No such file or directory

install libcups2. (sudo apt-get install libcups2-dev)

gst/gst.h: No such file or directory

install gstreamer 0.10. (sudo apt-get install libgstreamer0.10-dev)

Missing Include/glibconfig.h

it’s because this file isn’t in /usr/include/glib-2.0, but in /usr/lib/glib-2.0. So you have to include also this /usr/lib path or copy file to include/glib-2.0

Hints and tips

How to create symbolic link to directory

create symbolic link using ln -nsf /usr/include/gtk-2.0/gtk /usr/include/gtk

Minimal required libraries

List of libraries required by Qt:

  • libfontconfig1-dev
  • libfreetype6-dev
  • libx11-dev
  • libxcursor-dev
  • libxext-dev
  • libxfixes-dev
  • libxft-dev
  • libxi-dev
  • libxrandr-dev
  • libxrender-dev

And other which are required by some modules of Qt:

To install all required on Linux, use following commands

sudo apt-get install libfontconfig1-dev libfreetype6-dev libx11-dev libxcursor-dev libxext-dev libxfixes-dev libxcups/cups.h: No such file or directory ft-dev libxi-dev libxrandr-dev libxrender-dev

sudo apt-get install bison flex libqt4-dev libqt4-opengl-dev libphonon-dev libicu-dev libsqlite3-dev libxext-dev libxrender-dev gperf libfontconfig1-dev libphonon-dev

If error doesn’t disappear after installing correct library

Sometimes it’s necessary to reconfigure Qt using make confclean

How to find where is missing header file located on disk

Use find /path -iname xxx.h command

How to find package which contains missing header file

use apt-file application with following syntax:

apt-file search gdk/gdk.h

Useful links about instalation Qt on linux

List of links about installation:
Building Qt on Linux

Qt configuration for succesfull build

This is currently my latest configure command to compile Qt on my Ubuntu 10.10.

Compilation fixes

This is necessary when search path for following libraries isn’t entered to configure.

sudo ln -nsf /usr/include/gstreamer-0.10/gst /usr/include/gst

Todo

Figure out how works pkg-config (pkg-config –cflags gstreamer-0.10)

Qt installation and configuration

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This is our company step-by-step guide to install and configure Qt on our developer machines.

How to install Qt

Link to Qt download site: http://qt.nokia.com/downloads

Windows (VS2005)

Download VS 2008 distribution from download site. When 2008 distribution is downloaded, it’s necessary to reconfigure and rebuild it for VS 2005 using next steps.

Linux

Download linux/x11 distro from Qt page. Download 32/64bit distro package. Setup downloaded files as executables:

chmod +x qt-sdk-linux-x86-opensource-2009.01.bin
chmod +x qt-creator-linux-x86-opensource-1.0.0.bin

Install Qt sdk to default directory and begin with configuration.

MacOS

Download latest Qt SDK distribution and latest XCode developer pack from apple site. Then install both.

How to configure Qt

Qt configuration is done via Configure script/executable on all platforms.

Windows

Run “Start menu->Visual studio->Tools-> Visual studio command prompt”
Then go to “c:\Qt\Qt_Version\Qt” and run “configure” with additional params.

Our current configuration:

configure -debug-and-release -opensource -shared -platform win32-msvc2005 -incredibuild-xge -openssl

Clean configurations

run nmake confclean and nmake distclean to remove all previous version of QT compilations.

SSL support

For SSL Support add -openssl switch to configure.

Note!

: configure param HAVE TO be executed from Visual studio command prompt!

Linux

Enter Qt directory and enter following configure param:

./configure -opensource -I /usr/include/gtk-2.0 -L /usr/lib/gt-2.0 -I  /usr/include/gstreamer-0.10 -L /usr/lib/gstreamer-0.10 -I /usr/include/glib-2.0 -L /usr/lib/glib-2.0 -I /usr/include/libxml2 -fast

Clean configurations

run make confclean and then configure.

MacOS

How to compile Qt

Windows

Compile Qt using command prompt:

  • Run Visual studio command prompt.
  • And run nmake to build a whole library

Second option is open projects.sln located in p:/Qt/4.7.1/ using Visual Studio IDE  and compile it.

Linux

  • As first thing, use configure to setup Qt settings.
  • As next, run make to build a whole library
  • After a while when everything is compiled, use make install. This will install library to /usr/local/Trolltech/Qt-4.7.0

MacOS

Currently not tested, using default compilation.

How to compile application

When we have prepared Qt library, it’s time to compile our application.

MacOS

When using  qmake without additional params, qmake generate xcode project from .pro instad makefile for g++. To generate makefile, use following params:

qmake -spec macx-g++
make

Deploying application

Windows

Not testes.

External link: http://doc.trolltech.com/4.5/deployment-windows.html

Linux

Not testes.

MacOS

Not testes.