I'm trying to get a handle on writing an app for Trinity, starting with stuff from the Wiki; but it's a struggle. I Followed Support => Wiki => Developers => Tutorials and Documentation for QT and TQT and hiding under the QT3 API Documentation link (which really points to TQt Reference Documentation (Open Source Edition) I found the Getting Started section. Following How To Learn TQt showed me C++ GUI Programming with TQt 3 (which I have ordered); many of the other links on this page point to a now-deceased TrollTech website. :-( I moved on to Tutorial #1, and after figuring out that references to "qmake" should really be to "tqmake", I tried compiling the fourteen example programs. They all fail with the same error. Example #1 is typical:
| $ make | g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -pipe -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -O2 -DQT_NO_DEBUG -I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3 -o main.o main.cpp | g++ -luuid -o hello main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt -lXext -lX11 -lm | /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: main.o: undefined reference to symbol '_ZN13TQApplication13setMainWidgetEP8TQWidget' | /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/libtqt-mt.so.3: error adding symbols: DSO missing from command line | collect2: error: ld returned 1 exit status | make: *** [Makefile:88: hello] Error 1
in which the loader seems to be complaining about setMainWidget, a method of TQApplication. It seems to be expecting to find it in | /usr/lib64/libtqt-mt.so.3 and I see on the web that adding | -ltqt-mt will fix the problem, and several web responses say to use | ./configure LIBS=-ltqt-mt but how would I do that with tqmake?
Leslie
J Leslie Turriff via tde-users wrote:
I'm trying to get a handle on writing an app for Trinity, starting with stuff from the Wiki; but it's a struggle. I Followed Support => Wiki => Developers => Tutorials and Documentation for QT and TQT and hiding under the QT3 API Documentation link (which really points to TQt Reference Documentation (Open Source Edition) I found the Getting Started section. Following How To Learn TQt showed me C++ GUI Programming with TQt 3 (which I have ordered); many of the other links on this page point to a now-deceased TrollTech website. :-( I moved on to Tutorial #1, and after figuring out that references to "qmake" should really be to "tqmake", I tried compiling the fourteen example programs. They all fail with the same error. Example #1 is typical:
| $ make | g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -pipe -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -O2 -DQT_NO_DEBUG -I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3 -o main.o main.cpp | g++ -luuid -o hello main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt -lXext -lX11 -lm | /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: main.o: undefined reference to symbol '_ZN13TQApplication13setMainWidgetEP8TQWidget' | /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/libtqt-mt.so.3: error adding symbols: DSO missing from command line | collect2: error: ld returned 1 exit status | make: *** [Makefile:88: hello] Error 1
in which the loader seems to be complaining about setMainWidget, a method of TQApplication. It seems to be expecting to find it in | /usr/lib64/libtqt-mt.so.3 and I see on the web that adding | -ltqt-mt will fix the problem, and several web responses say to use | ./configure LIBS=-ltqt-mt but how would I do that with tqmake?
Leslie ____________________________________________________ tde-users mailing list -- users@trinitydesktop.org To unsubscribe send an email to users-leave@trinitydesktop.org Web mail archive available at https://mail.trinitydesktop.org/mailman3/hyperkitty/list/users@trinitydeskto...
I just tried the t1 example in the tutorial folder from the tqt3 source in the console:
g++ main.cpp -I/usr/include/tqt -I/usr/include/tqt3 -ltqt-mt -o t1 ./t1
(my) corresponding t1.pro file:
TEMPLATE = app CONFIG += qt warn_on release HEADERS = SOURCES = main.cpp TARGET = t1 INCLUDEPATH = /usr/include/tqt3 /usr/include/tqt
tqmake -o Makefile t1.pro make ./t1
regarding the book i like "Programming with Qt" 2nd edition (the second edition includes qt3) from O'Reilly by Matthias Kalle Dalheimer
Cheers.
On 2020-09-30 01:09:20 J Leslie Turriff via tde-users wrote:
I'm trying to get a handle on writing an app for Trinity, starting with stuff from the Wiki; but it's a struggle. I Followed Support => Wiki => Developers => Tutorials and Documentation for QT and TQT and hiding under the QT3 API Documentation link (which really points to TQt Reference Documentation (Open Source Edition) I found the Getting Started section. Following How To Learn TQt showed me C++ GUI Programming with TQt 3 (which I have ordered); many of the other links on this page point to a now-deceased TrollTech website. :-( I moved on to Tutorial #1, and after figuring out that references to "qmake" should really be to "tqmake", I tried compiling the fourteen example programs.
They all fail with the same error. Example #1 is typical: | $ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -pipe -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -O2 -DQT_NO_DEBUG -I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3 -o main.o main.cpp
| g++ -luuid -o hello
main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt -lXext -lX11 -lm
| /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
main.o: undefined reference to symbol '_ZN13TQApplication13setMainWidgetEP8TQWidget'
| /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: | /usr/lib64/libtqt-mt.so.3:
error adding symbols: DSO missing from command line
| collect2: error: ld returned 1 exit status | make: *** [Makefile:88: hello] Error 1
in which the loader seems to be complaining about setMainWidget, a method of TQApplication. It seems to be expecting to find it in
| /usr/lib64/libtqt-mt.so.3
and I see on the web that adding
| -ltqt-mt
will fix the problem, and several web responses say to use
| ./configure LIBS=-ltqt-mt
but how would I do that with tqmake?
After fiddling around a bit, I found that the way to do it with tqmake is | tqmake -makefile LIBS=-ltqt-mt I'm now able to compile and run all of the programs.
Leslie --
-
gregory guy -
J Leslie Turriff