Error while doing gmake

[MansiMS]

Hello

Im trying to install Qt5 on my centos 8 machine.

I could execute the configure command and now im trying to do gmake.

But i get the following error -
gmake[5]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtsvg/src/plugins/iconengines/svgiconengine'
gmake[4]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtsvg/src/plugins/iconengines'
gmake[3]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtsvg/src/plugins'
gmake[2]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtsvg/src'
gmake[1]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtsvg'
cd qtdeclarative/ && ( test -e Makefile || /home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/bin/qmake -o Makefile /home/mansi/Downloads/gengetopt-2.10/qt5/qtdeclarative/qtdeclarative.pro ) && gmake -f Makefile
sh: python: command not found
Project ERROR: Building QtQml requires Python.
gmake: *** [Makefile:338: module-qtdeclarative-make_first] Error 3
[mansi@localhost qt5]$

I have installed Python my machine -
[mansi@localhost Python-3.8.1]$ ls
aclocal.m4 Include Modules python
build install-sh Objects Python
CODE_OF_CONDUCT.md Lib Parser python-config
config.guess libpython3.8.a PC python-config.py
config.log LICENSE PCbuild python-gdb.py
config.status m4 platform README.rst
config.sub Mac profile-run-stamp setup.py
configure Makefile Programs Tools
configure.ac Makefile.pre pybuilddir.txt
Doc Makefile.pre.in pyconfig.h
Grammar Misc pyconfig.h.in
[mansi@localhost Python-3.8.1]$ py
pydoc2 pydoc3.8 python2-config python3-config
pydoc2.7 python2 python3 pyvenv-3.6
pydoc3 python2.7 python3.8
pydoc3.6 python2.7-config python3.8-config
[mansi@localhost Python-3.8.1]$ py

please tell me how to proceed.

thanks

[Christian Ehrlicher]

python needs to be in your PATH so the Makefile can find it. Why do you use a custom python installation at all instead using one provided by the distribution?

[MansiMS]

so what do you suggest now.
I couldn't find any link for python provided by the distribution.

[SGaist]

Hi,

What distribution are you using ?

[MansiMS]

Its QT5 that im trying to install.
And i have python version 2.7 and higher installed on my machine

[Pablo J. Rogina]

@MansiMS what happens if you type python and hit Enter in your command line?

[MansiMS]

[mansi@localhost Downloads]$ python
python2 python2.7-config python3 python3.8-config
python2.7 python2-config python3.8 python3-config

[mansi@localhost Downloads]$ python2.7
Python 2.7.15 (default, Oct 8 2019, 21:08:29)
[GCC 8.2.1 20180905 (Red Hat 8.2.1-3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

[SGaist]

What version of Qt are you trying to build ?

[MansiMS]

Im building qt5 on my centos machine.

I was getting a error related to python.
So now, i used this command :

[mansi@localhost qt5]$ alias python=/usr/lib/python3.6

To make sure it takes in python command.

Then again I try to build by using make -j4 command.
I still get the following errors:
sh: python: command not found
Project ERROR: Building QtQml requires Python.
make: *** [Makefile:338: module-qtdeclarative-make_first] Error 3
make: *** Waiting for unfinished jobs....
cd tinycan/ && ( test -e Makefile || /home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/bin/qmake -o Makefile /home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/tinycan/tinycan.pro ) && make -f Makefile
make[5]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/passthrucan'
make[5]: Nothing to be done for 'first'.
make[5]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/passthrucan'
make[5]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/socketcan'
make[5]: Nothing to be done for 'first'.
make[5]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/socketcan'
make[5]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/peakcan'
make[5]: Nothing to be done for 'first'.
make[5]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/peakcan'
make[5]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/tinycan'
make[5]: Nothing to be done for 'first'.
make[5]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus/tinycan'
make[4]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins/canbus'
make[3]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/plugins'
cd tools/ && ( test -e Makefile || /home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/bin/qmake -o Makefile /home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools/tools.pro ) && make -f Makefile
cd serialbus/doc/snippets/ && ( test -e Makefile || /home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/bin/qmake -o Makefile /home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/serialbus/doc/snippets/snippets.pro ) && make -f Makefile
make[3]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools'
cd canbusutil/ && ( test -e Makefile || /home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/bin/qmake -o Makefile /home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools/canbusutil/canbusutil.pro ) && make -f Makefile
make[3]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/serialbus/doc/snippets'
make[3]: Nothing to be done for 'first'.
make[3]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/serialbus/doc/snippets'
make[4]: Entering directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools/canbusutil'
make[4]: Nothing to be done for 'first'.
make[4]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools/canbusutil'
make[3]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src/tools'
make[2]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus/src'
make[1]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtserialbus'

[SGaist]

That doesn't answer my question: what exactly version of Qt 5 are you building ?

By the way, your alias is wrong. You have aliased a folder.

[MansiMS]

I could solve the issue with python, but now I have another problem:

I get the following error if i do make:

In file included from ../../include/QtNetwork/5.12.6/QtNetwork/private/qtnetworkglobal_p.h:1,
from access/qnetworkaccessauthenticationmanager_p.h:54,
from access/qnetworkaccessauthenticationmanager.cpp:40:
../../include/QtNetwork/5.12.6/QtNetwork/private/../../../../../src/network/kernel/qtnetworkglobal_p.h:55:10: fatal error: QtCore/private/qglobal_p.h: No such file or directory
#include <QtCore/private/qglobal_p.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [Makefile:8910: .obj/qnetworkaccessauthenticationmanager.o] Error 1
make[3]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/src/network'
make[2]: *** [Makefile:250: sub-network-make_first] Error 2
make[2]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtbase/src'
make[1]: *** [Makefile:51: sub-src-make_first] Error 2
make[1]: Leaving directory '/home/mansi/Downloads/gengetopt-2.10/qt5/qtbase'
make: *** [Makefile:85: module-qtbase-make_first] Error

PLEASE HELP

[MansiMS]

To clarify about the version

[mansi@localhost qt5]$ qmake-qt5 --version
QMake version 3.1
Using Qt version 5.11.1 in /usr/lib64

[SGaist]

Are you mixing your distribution provided Qt with the one you are trying to build ?