[CMake] Qt assistant in OsX application bundle

Clinton Stimpson clinton at elemtech.com
Wed Mar 3 10:19:54 EST 2010 

On Wednesday 03 March 2010 08:07:17 am Martin Guillon wrote:
> I tried exactly your layout and I still get the error.
> So a few questions:
> - can you show me the qt.conf of your Assistant.app

Its empty.

> - where did you get the Assistant.app?  I build qt myself so that I can
>  choose to install qt (carbon) in a directory of my choice. So the
>  assistant comes from there. - Which version of Qt?

I got assistant.app from a Qt 4.5.2 (carbon) installation.

> - how did you change the path where the executable looks for frameworks? (I
>  used cmake which internally changes absolute paths written during
>  Assistant build to "@executable_path/../Frameworks/... )

I use BundleUtilities.cmake on Foo.app which goes in an fixes assistant.app as 
well.  But before that, I also add a symlink Frameworks -> ../../../Frameworks 
for the assistant, and a libQtCLucene.4.dylib -> ../../../libQtCLucene.4.dylib
As far as I know, those symlinks are only necessary because of how 
BundleUtilities does it.

Clint

> 
> Sorry for asking so many question, but that s the only way I can find why
>  it works for you :s Thanks
> 
> Martin
> 
> -----Original Message-----
> From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On Behalf Of
>  Clinton Stimpson Sent: Wednesday, March 03, 2010 3:51 PM
> To: Michael Wild
> Cc: Michael Jackson; cmake at cmake.org; Martin Guillon
> Subject: Re: [CMake] Qt assistant in OsX application bundle
> 
> 
> This works for me:
> 
> Foo.app/
> -Contents/
> --plugins/
> ---sqldrivers
> --Resources/
> ---qt.conf
> --MacOS/
> ---Foo
> ---Assistant.app/
> ----Contents/
> -----plugins/   symlink to ../../../plugins
> ----Resources
> -----qt.conf
> 
> You can change the location of plugins to your liking if you specify it in
>  qt.conf. That also means you can do without symlinking plugins and tell
>  the assistant's qt.conf to go up 3 more directories.
> 
> Clint
> 
> On 03/03/2010 07:20 AM, Michael Wild wrote:
> > Hmm, that's strange... Looks like you're doing the things the right
> > way...
> >
> > Have you tried making the Doc/Assistant.app/Contents/Plugins not a
> > symlink, but a copy of Bundle.app/Contents/Plugins instead? Just for
> > debugging... Moving the libqsqlite.dylib library into MacOS can't help
> > because Qt is always searching for
> > $PLUGINS_DIR/sqldrivers/libsqlite.dylib, where $PLUGINS_DIR is the
> > directory where Qt looks for plugins.
> >
> > I understand your frustration, deploying stuff on Mac OS X is a PITA.
> >
> > Michael
> >
> > On 3. Mar, 2010, at 14:47 , Martin Guillon wrote:
> >> In fact it was not solved
> >>
> >> It works great on my dev machine. But as soon as I copy my app on a
> >> machine without qt framework I get an error "Cannot Load SQLite database
> >> driver!"
> >>
> >> So let me first show you my layout
> >>
> >> Bundl.app
> >> --MacOS
> >> --Resources
> >> --Framework
> >> -----QtCore...
> >> -----QGui...
> >> -----QtXml...
> >> -----QtHelp...
> >> -----QtSql...
> >> --Plugins
> >> ----imageformats
> >> -------- .....
> >> ----sqldrivers
> >> ------libsqlite.dylib
> >> --Doc
> >> ----Assistant.app
> >> ------Frameworks (link to ../../Frameworks) ------Plugins (link to
> >> ../../Plugins)
> >> ------ Exactly the same layout as the assistant from qt/bin
> >>
> >>
> >> Now I now Assistant find the frameworks as I get another error related
> >> to that if I change anything related to the frameworks. Now I have spent
> >> 3 days of the "Cannot Load SQLite database driver!" error and I cant
> >> find the solution. I tried copying libsqlite.dylib in the MacOS folder,
> >> tried creating a empty/filled qt.conf in
> >> Bundle.app/Doc/Assistant.app/Resources. Nothing works!
> >>
> >> I really need help
> >> Thanks
> >>
> >> Martin
> >>
> >> -----Original Message-----
> >> From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On
> >> Behalf Of Martin Guillon
> >> Sent: Monday, March 01, 2010 4:18 PM
> >> To: Michael Wild; Michael Jackson
> >> Cc: cmake at cmake.org
> >> Subject: Re: [CMake] Qt assistant in OsX application bundle
> >>
> >> Thanks a lot Michael, I found the solution in ParaView!!!
> >>
> >> Martin
> >>
> >> -----Original Message-----
> >> From: Michael Wild [mailto:themiwi at gmail.com]
> >> Sent: Monday, March 01, 2010 3:14 PM
> >> To: Michael Jackson
> >> Cc: Martin Guillon; cmake at cmake.org
> >> Subject: Re: [CMake] Qt assistant in OsX application bundle
> >>
> >> But only the stable release, the CVS version doesn't anymore.
> >>
> >> Michael
> >>
> >> On 1. Mar, 2010, at 15:05 , Michael Jackson wrote:
> >>> I would take a look at the ParaView project as ParaView uses
> >>> QtAssistant for help.
> >>> _________________________________________________________
> >>> Mike Jackson                  mike.jackson at bluequartz.net
> >>> BlueQuartz Software                    www.bluequartz.net
> >>> Principal Software Engineer                  Dayton, Ohio
> >>>
> >>> On Mar 1, 2010, at 7:52 AM, Martin Guillon wrote:
> >>>> Hi,
> >>>>
> >>>> After successfully creating my application bundle with qt
> >>>> frameworks(thanks to all of you) I am now trying to integrate the qt
> >>>> assistant in my application bundle. I first tried to put the whole
> >>>> Assistant.app in a folder of my app bundle. But then fixing the bundle
> >>>> wouldn't work with the assistant because of the double level of bundle
> >>>> app. Then I thought that should just put the Assistant executable in
> >>>> the MacOS folder of my bundle. Then the fixing worked but launching
> >>>> the Assistant wouldn't work. It would just crash with a bus error
> >>>> during start.
> >>>>
> >>>> So did anyone successfully integrated the qt assistant in its app
> >>>> bundle?
> >>>>
> >>>> Thanks a lot
> >>>>
> >>>> Martin
> >>>>
> >>>> -----Original Message-----
> >>>> From: Michael Wild [mailto:themiwi at gmail.com]
> >>>> Sent: Thursday, February 25, 2010 9:36 AM
> >>>> To: Martin Guillon
> >>>> Cc: Werner Smekal; cmake at cmake.org
> >>>> Subject: Re: [CMake] OsX bundle including Qt framework
> >>>>
> >>>> I think this is because Qt by default loads some optional plugins and
> >>>> finds them in your Qt installation because they do not get copied into
> >>>> your application bundle automatically. Since the prefixes do not
> >>>> match, Qt is complaining... You can confirm this by setting the
> >>>> environment variables DYLD_PRINT_LIBRARIES or
> >>>> DYLD_PRINT_LIBRARIES_POST_LAUNCH to a non-empty string and then
> >>>> starting your application from the command line (i.e.
> >>>> /<path-to>/<application>.app/Contents/MacOS/<executable>, where you
> >>>> have to replace the parts in<>). Then watch for the library names that
> >>>> get loaded. Nothing should come from your Qt installation.
> >>>>
> >>>> If this is the source for the error, try including an empty qt.conf
> >>>> file in your bundle (or as a resource) as described here:
> >>>> http://doc.trolltech.com/4.6/qt-conf.html
> >>>>
> >>>> HTH
> >>>>
> >>>> Michael
> >>>>
> >>>> On 25. Feb, 2010, at 9:11 , Martin Guillon wrote:
> >>>>> A little feedback on what s happening. After using the fixbundle 
> >>>>> script, my app works great on a machine without QT installed. I loads
> >>>>> the frameworks I put in the bundle perfectly. But now I have a
> >>>>> problem in my dev environment. After fixing the bundle, if I start my
> >>>>> app, I get qt errors saying it finds multiple versions of qt, and
> >>>>> then some of my executables wont start. That s not that bad in my dev
> >>>>> environment but what if the user already have a qt somewhere?
> >>>>>
> >>>>> Is there a way to make so that my app only see the qt frameworks in
> >>>>> the bundle?
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>> MArtin
> >>>>>
> >>>>> -----Original Message-----
> >>>>> From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On
> >>>>> Behalf Of Martin Guillon
> >>>>> Sent: Wednesday, February 24, 2010 4:05 PM
> >>>>> To: Werner Smekal; cmake at cmake.org
> >>>>> Subject: Re: [CMake] OsX bundle including Qt framework
> >>>>>
> >>>>> Thanks a lot, it now works perfectly!!!!
> >>>>>
> >>>>> MArtin
> >>>>>
> >>>>> -----Original Message-----
> >>>>> From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On
> >>>>> Behalf Of Werner Smekal
> >>>>> Sent: Wednesday, February 24, 2010 3:34 PM
> >>>>> To: cmake at cmake.org
> >>>>> Subject: Re: [CMake] OsX bundle including Qt framework
> >>>>>
> >>>>> -----BEGIN PGP SIGNED MESSAGE-----
> >>>>> Hash: SHA1
> >>>>>
> >>>>> Hi Martin,
> >>>>>
> >>>>>> I use cmake to make an osx bundle of my qt application. During
> >>>>>> install I copy qt framework from my qt install dir to the
> >>>>>> Frameworks directory of my bundle.
> >>>>>
> >>>>> This will be done automagically using the BundleUtilities module.
> >>>>> E.g. in my project I do:
> >>>>>
> >>>>> 	# fixup bundle, copy dynamic libraries into app bundle
> >>>>> 	set(APPS "\${CMAKE_INSTALL_PREFIX}/${SESSA_BUNDLE_NAME}.app")  #
> >>>>> paths to executables set(DIRS
> >>>>> "${CMAKE_SOURCE_DIR}/local/Release/lib")   # directories to search
> >>>>> for prerequisites
> >>>>> 	INSTALL(CODE "
> >>>>> 	include(BundleUtilities)
> >>>>> 	fixup_bundle(\"${APPS}\"   \"\"   \"${DIRS}\")
> >>>>> 	")
> >>>>>
> >>>>> Look in the mailing list or in the net about BundleUtilities to get
> >>>>> more information, or look in the module.
> >>>>>
> >>>>>> The problem I have now is that when using "ostool -L " I see that
> >>>>>> my executable look for qt frameworks in a dir which is the
> >>>>>> absolute path to my qt install dir.
> >>>>>
> >>>>> Reason is, that if you link to a library, the reference inside the
> >>>>> *library* (use otool -L on that library) is used and set in the
> >>>>> executable as well. You need at least to set the new reference
> >>>>> (@executable_path/....) in the executable, so that it can find the
> >>>>> libraries (if libraries depend on other libraries you need to change
> >>>>> that as well). Use install_name_tool for that.
> >>>>>
> >>>>> But everything is done by the BundleUtilities macro, so you don't
> >>>>> need to mess around here.
> >>>>>
> >>>>> HTH,
> >>>>> Werner
> >>>>>
> >>>>>> What I want is for my executable to look in the "Frameworks"
> >>>>>> directory of my bundle.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> Is there a way to do that directly during build using Cmake?
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> Thanks
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> MArtin
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> _______________________________________________ Powered by
> >>>>>> www.kitware.com
> >>>>>>
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> >>>>>> Please keep messages on-topic and check the CMake FAQ at:
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> >>>>>>
> >>>>>> Follow this link to subscribe/unsubscribe:
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> >>>>>
> >>>>> - --
> >>>>> Dr. Werner Smekal
> >>>>> Institut fuer Angewandte Physik
> >>>>> Technische Universitaet Wien
> >>>>> Wiedner Hauptstr 8-10/134
> >>>>> A-1040 Wien
> >>>>> Austria
> >>>>> DVR-Nr: 0005886
> >>>>>
> >>>>> email: smekal at iap.tuwien.ac.at  (GPG: EDCAF4A79)
> >>>>> web:   http://www.iap.tuwien.ac.at/~smekal
> >>>>> phone: +43-(0)1-58801-13463 (office)
> >>>>>     +43-(0)1-58801-13469 (laboratory)
> >>>>> fax:   +43-(0)1-58801-13499
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> >>>>> _______________________________________________
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