Qt Forum - programming with C++ and Qt | Qt Designer | Howto compile a project with a custom widget.

Qt Forum - programming with C++ and Qt » QtForum.org » Qt » Qt Designer » Howto compile a project with a custom widget.

» Hello Guest [Login|Register]

Last Post | First Unread Post

Print Page | Recommend to a Friend | Add Thread to Favorites

Howto compile a project with a custom widget.

Author

Post

« Previous Thread | Next Thread »

leoclog
Assistant

Registration Date: 10.04.2008
Posts: 5

Level: 6 [?]
Experience: 181
Next Level: 282

Howto compile a project with a custom widget.

Hi,

I created a custom widget in designer and I'm now ready to use the widget in my other projects but I'm getting either compile issues or the program compiles but doesn't run due to the custom widget library.

I first used the custom widget without changing the .pro file and got the following error ;

code:

1:
2:
3:
4:
5:
6:
7:

>make
/usr/bin/qmake -unix -o Makefile currency.pro
g++  -o currency currency.o currxml.o main.o moc_currency.o    -L/usr/lib -lQtXml -L/usr/lib -pthread -pthread -lQtGui -L/usr/X11R6/lib -lpng -lSM -lICE -pthread -pthread -lXi -lXrender -lXrandr -lXfixes -lXcursor -lXinerama -lfreetype -lfontconfig -lXext -lX11 -lQtNetwork -pthread -pthread -lQtCore -lz -lm -pthread -lgthread-2.0 -lrt -lglib-2.0 -ldl -lpthread
currency.o: In function `Ui_Dialog::setupUi(QDialog*)':
currency.cpp:(.text._ZN9Ui_Dialog7setupUiEP7QDialog[Ui_Dialog::setupUi(QDialog*)]+0x750): undefined reference to `SelectDateWidget::SelectDateWidget(QWidget*)'
collect2: ld returned 1 exit status
make: *** [currency] Error 1

I then changed the .pro file and added :

code:
1:	LIBS += -L/usr/lib/qt4/plugins/designer -lselectdatewidget

Now the compile goes ok but when I run the program I get the following message

code:
1: 2:	>./currency ./currency: error while loading shared libraries: libselectdatewidget.so: cannot open shared object file: No such file or directory

What do I need to change to use my new custom widget?

I'm running Qt4.3 on a linux box.

Regards,

Leo Paalvast

This post has been edited 1 time(s), it was last edited by leoclog: 13.04.2008 21:17.

12.04.2008 18:17

Messenger Messenger is a male

Expert

Registration Date: 20.04.2007
Posts: 298
Location: Lt

Level: 26 [?]
Experience: 116,880
Next Level: 125,609

RE: Howto compile a project with a custom widget.

>>./currency: error while loading shared libraries: libselectdatewidget.so: cannot open shared object file: No such file or directory
To run application use
LD_LIBRARY_PATH=/-L/usr/lib/qt4/plugins/designer ./yourprogram
or
LD_LIBRARY_PATH=./ ./yourprogram (and ibselectdatewidget.so in application directory)
Take a look at scripts loading opera, openoffice (soffice), firefox etc.
See /etc/ld.so.conf ldconfig etc.

Maybe it is possible to create static selectdtewidget library. Then application with selectdtewidget will not need external library (so). See qmake CONFIG variable staticlib option.

__________________
Fighting fire with fire.

13.04.2008 12:16

leoclog
Assistant

Registration Date: 10.04.2008
Posts: 5

Level: 6 [?]
Experience: 181
Next Level: 282

Thread Starter Thread Started by leoclog

RE: Howto compile a project with a custom widget.

Thanks again messenger, I used the CONFIG += staticlib option and it works fine now,

13.04.2008 21:16

Tree Structure | Board Structure

Qt Forum - programming with C++ and Qt » QtForum.org » Qt » Qt Designer » Howto compile a project with a custom widget.

views today: 10.075 | views yesterday: 17.520 | total views: 10.243.444

Klebekork Shop - Linux Shop - Kontaktanzeigen - Linux Forum - SMS Gewinnspiel - Hotels - Stadtpläne - Branchenbuch & Stadtplan

Branchenbuch Österreich - Branchenbuch Niederlande - Portugal Branchenverzeichnis - Spanien Branchenverzeichnis
Telefonbuch - Branchenbuch Frankreich