ROOT Qt Manual Example

From: Lee, Kerry T. \(JSC-SF\)[UHCL] <kerry.t.lee_at_nasa.gov>
Date: Wed, 19 Apr 2006 17:28:48 -0500

Dear ROOT team,

I am using ROOT 5.11.02 on CentOS (linux) compiled with gcc 3.4.4.

I have tried to duplicate the Qt example in the manual. The output of qmake and make are below.

[kerrylee_at_jsc-sf-2148872 MyQButtonEx]$ qmake MyQButton.pro
WARNING: Failure to find: Dict.cxx
[kerrylee_at_jsc-sf-2148872 MyQButtonEx]$ make

g++ -c -pipe -Wall -W -O2 -g -pipe -m32 -march=i386 -mtune=pentium4 -fPIC  -DQT_NO_DEBUG -DQT_SHARED -DQT_THREAD_SUPPORT -I/usr/lib/qt-3.3/mkspecs/default -I. -I"/include" -I"/home/root/gcc/5.11.00/root/include" -I/usr/lib/qt-3.3/include -o TMyQButton.o TMyQButton.cxx
/home/root/gcc/5.11.00/root/bin/rootcint -f Dict.cxx -c -DQT_VERSION=0x30000 -I/usr/lib/qt-3.3/mkspecs/default -I. -I"/include" -I"/home/root/gcc/5.11.00/root/include" -I/usr/lib/qt-3.3/include TMyQButton.h LinkDef.h
g++ -c -pipe -Wall -W -O2 -g -pipe -m32 -march=i386 -mtune=pentium4 -fPIC  -DQT_NO_DEBUG -DQT_SHARED -DQT_THREAD_SUPPORT -I/usr/lib/qt-3.3/mkspecs/default -I. -I"/include" -I"/home/root/gcc/5.11.00/root/include" -I/usr/lib/qt-3.3/include -o Dict.o Dict.cxx

rm -f libMyQButton.so.1.0.0 libMyQButton.so libMyQButton.so.1 libMyQButton.so.1.0 g++ -shared -Wl,-soname,libMyQButton.so.1 -o libMyQButton.so.1.0.0 TMyQButton.o Dict.o -L/usr/lib/qt-3.3/lib -L/lib -lGQt -lQtGui -L/home/root/gcc/5.11.00/root/lib -lCore -lCint -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lGui -pthread -lm -ldl -rdynamic -lTable -lqt-mt /usr/bin/ld: cannot find -lQtGui
collect2: ld returned 1 exit status
make: *** [libMyQButton.so.1.0.0] Error 1

I can omit -lQtGui from the last command and there are no errors, but I cannot load the created library into root. I have also searched for the libQtGui and it does not exist despite Qt being installed correctly.

Any help is appreciated.

Thanks
Kerry Received on Thu Apr 20 2006 - 00:29:47 MEST