Qt build error

prerna

Hi,

I am installing Qt 5.7 in RHEL6.6. I get the following error while run:
g++ -c -pipe -g -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../../../chk/tr1 -I. -I/opt/Qt5.7.0/5.7/gcc_64/include -I/opt/Qt5.7.0/5.7/gcc_64/include/QtWidgets -I/opt/Qt5.7.0/5.7/gcc_64/include/QtGui -I/opt/Qt5.7.0/5.7/gcc_64/include/QtCore -I. -I. -I/opt/Qt5.7.0/5.7/gcc_64/mkspecs/linux-g++ -o main.o ../../../chk/tr1/main.cpp
cc1plus: error: unrecognized command line option "-std=gnu++11"
make: *** [main.o] Error 1
make: Leaving directory `/home/Prerna/Desktop/example/ex2/tr1'
11:37:33: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project tr1 (kit: Desktop Qt 5.7.0 GCC 64bit)
When executing step "Make"

11:37:33: Elapsed time: 00:00.

prerna

sorry, i have already installed qt 5.7 and when i run a program i get this error

prerna

can anyone please help me with this error?

nirh

Hi @prerna ,

I had just installed qt 5.7 on RHEL6.6 and the installation went perfect,

Probably u have missed some installation steps...

nirh

prerna

i used offline installer and GCC is 4.4 maybe that is the prob i need GCC 4.7 i think

prerna

could you please mention the steps you followed and from which file did you install? .run/.tar etc
Also what necessary files should be downloaded for Qt to run without any problems?

SGaist

Hi,

Either use a version of Qt that is smaller that 5.7 or upgrade your compiler.

prerna

Hi,
Thank you :)I figured out it was not working first because of gcc compiler (the version i had was an old one) i installed gcc4.8.1after that through devtoolset-2 and it worked fine.However there is new error LibGL error unable to load driver nouveau_dri.so
Can you tell me what is this error?

SGaist

What OpenGL library do you have installed ?

prerna

i did not install any. How to do that? which one should i install

SGaist

Since you're on RedHat: yum install mesa-libGL-devel