RE: epicsQt and QWT6

["Williams Jr., Ernest L." <ernesto@slac.stanford.edu>]

Hi John,

Sorry for all of your troubles on this.

The problems that you bumped into have been resolved on the head of the epicsqt SVN Repo:
svn checkout svn://svn.code.sf.net/p/epicsqt/code/trunk

Please, have a look.

I believe Andrew will be cutting a new release soon.
===============================================================================


Cheers,
Ernest
________________________________________
From: John Dobbins [john.dobbins@cornell.edu]
Sent: Monday, April 20, 2015 8:13 AM
To: Williams Jr., Ernest L.; tech-talk@aps.anl.gov
Subject: Re: epicsQt and QWT6

More detail and what I found:

Our linux boxes have Qt 4.8.5 installed.

I  installed Qwt 5.2.3 , but I don't have admin privileges so it is not a  completely normal installation.

I downloaded epicsqt-3.0.2-src.tar.gz and built it against Qwt 5.2.3 and that worked.

I then installed Qwt 6.0.1 and  tried to build epicsqt-3.0.2 against that but it didn't work, failed to link because it didn't find libqwt. Make output is shown below. All this was last Friday.

So this morning I deleted my epicsqt folder and started over and found I got the same error with Qwt 5.2.3  and Qwt 6.0.1 Don't know why it worked last week.

QWT_INCLUDE_PATH =/nfs/erl/erp/tmp/jad/qtdev/qwt-6.0.1/include or /nfs/erl/erp/tmp/jad/qtdev/qwt-5.2.3/include as appropriate.

LD_LIBRARY_PATH is also points to the in use Qwt version library, e.g.

/nfs/erl/erp/tmp/jad/qtdev/epicsqt/framework/designer:/nfs/erl/erp/tmp/jad/qtdev/qwt-6.0.1/lib

I then changed

epicsqt/framework/framework.pro  to give the location of the Qwt library, i.e. changed

unix {
    LIBS += -lqwt
}

to

unix {
    LIBS += -lqwt -L/nfs/erl/erp/tmp/jad/qtdev/qwt-6.0.1/lib
}

and it now builds. I can change 6.0.1 to 5.2.3 and it also builds.

(Note: I am new to Qt so don't hesitate to offer correction)

Regards,

John Dobbins






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 o O.linux-x86_64/obj/moc_QEStripChartItem.o O.linux-x86_64/obj/moc_QEStripChartNames.o O.linux-x86_64/obj/moc_QEStripChartRangeDialog.o O.linux-x86_64/obj/moc_QEStripChartTimeDialog.o O.linux-x86_64/obj/moc_QEStripChartToolBar.o O.linux-x86_64/obj/moc_QEStripChartManager.o O.linux-x86_64/obj/moc_QEStripChartStatistics.o O.linux-x86_64/obj/moc_QESubstitutedLabel.o O.linux-x86_64/obj/moc_QESubstitutedLabelManager.o O.linux-x86_64/obj/moc_QETable.o O.linux-x86_64/obj/moc_QETableManager.o O.linux-x86_64/obj/qrc_common.o O.linux-x86_64/obj/qrc_archive.o O.linux-x86_64/obj/qrc_QEAnalogIndicator.o O.linux-x86_64/obj/qrc_QEAnalogProgressBar.o O.linux-x86_64/obj/qrc_QEBitStatus.o O.linux-x86_64/obj/qrc_QEButton.o O.linux-x86_64/obj/qrc_QEComboBox.o O.linux-x86_64/obj/qrc_QEConfiguredLayout.o O.linux-x86_64/obj/qrc_QEFileBrowser.o O.linux-x86_64/obj/qrc_QEFileImage.o O.linux-x86_64/obj/qrc_QEForm.o O.linux-x86_64/obj/qrc_QEFormGrid.o O.linux-x86_64/obj/qrc_QEFrame.o O.linux-x86_64/ob!
 j/qrc_QEGeneralEdit.o O.linux-x86_64/obj/qrc_QEGroupBox.o O.linux-x86_64/obj/qrc_QEHistogram.o O.linux-x86_64/obj/qrc_QEImage.o O.linux-x86_64/obj/qrc_QELabel.o O.linux-x86_64/obj/qrc_QELineEdit.o O.linux-x86_64/obj/qrc_QELink.o O.linux-x86_64/obj/qrc_QELog.o O.linux-x86_64/obj/qrc_QELogin.o O.linux-x86_64/obj/qrc_QENumericEdit.o O.linux-x86_64/obj/qrc_QEPeriodic.o O.linux-x86_64/obj/qrc_QEPlot.o O.linux-x86_64/obj/qrc_QEPlotter.o O.linux-x86_64/obj/qrc_QEPvLoadSave.o O.linux-x86_64/obj/qrc_QEPvProperties.o O.linux-x86_64/obj/qrc_QERadioGroup.o O.linux-x86_64/obj/qrc_QERecipe.o O.linux-x86_64/obj/qrc_QEResizeableFrame.o O.linux-x86_64/obj/qrc_QEScratchPad.o O.linux-x86_64/obj/qrc_QEScript.o O.linux-x86_64/obj/qrc_QEShape.o O.linux-x86_64/obj/qrc_QESimpleShape.o O.linux-x86_64/obj/qrc_QESlider.o O.linux-x86_64/obj/qrc_QESpinBox.o O.linux-x86_64/obj/qrc_QEStripChart.o O.linux-x86_64/obj/qrc_QESubstitutedLabel.o O.linux-x86_64/obj/qrc_QETable.o   -L/nfs/opt/qt-4.8.5/lib -L/nfs!
 /erl/erp/epics/R3.14.12/support/base-3.14.12.2/lib/linux-x86_64 -lca -l!
 Com -lqwt -lQtScript -L/nfs/opt/qt-4.8.5/lib -L/usr/X11R6/lib -lQtNetwork -lQtDesigner -lQtUiTools -L/tmp/qt4/qt-everywhere-opensource-src-4.8.5/lib -lQtXml -lQtGui -lQtCore -lpthread
/usr/bin/ld: cannot find -lqwt

























________________________________________
From: Williams Jr., Ernest L. <ernesto@slac.stanford.edu>
Sent: Friday, April 17, 2015 3:58 PM
To: John Dobbins; tech-talk@aps.anl.gov
Subject: RE: epicsQt and QWT6

________________________________________
From: tech-talk-bounces@aps.anl.gov [tech-talk-bounces@aps.anl.gov] on behalf of John Dobbins [john.dobbins@cornell.edu]
Sent: Friday, April 17, 2015 12:48 PM
To: tech-talk@aps.anl.gov
Subject: epicsQt and QWT6

All,


I am taking my first look at epicsQt and caQtDM. I built epicsQt with Qt-4.8.5 and Qwt-5.2.3. All peace and happiness. Then I looked at caQtDM and see that the latest version, 3.9.1,  is calling for Qwt 6.0.1


I built qwt 6.0.1 but haven't been able to build epicsQt against it. For reasons I don't understand it won't find the qwt lib.


So I'm just wondering if any knows that this (epicsQt with Qwt 6) should work before I bang my head some more.
=====================================================
Yes, indeed it does work.
What version of peicsQt are you using?
Please, show the error message that you get.


Cheers,
Ernest


Regards,


John Dobbins


Cornell University Laboratory for Accelerator-Based Sciences and Education