Qt5.5 static build cannot find -IGL on ubuntu14 - c++

Question

I have compiled qt 5.5 for static building and it works fine.
However, when I add the widgets "QT += widgets" in the pro file I get the link error "cannot find -IGL"
From what I read this is to do with the Open GL libs. I have tried the following:
sudo apt-get install libglu1-mesa-dev
and
sudo apt-get install libgl1-mesa-dev
But no luck here... I am wondering if I need a static version of this? or maybe a symlink is missing, but I can't figure out the next step :(
Edit This is the actual error message:
g++ -static -static-libgcc -static-libstdc++ -Wl,-O1 -o ../targetRel/McpSupervisor main.o cconfig.o cconfigxml.o mcpprocessbase.o rpeprocess.o supervisor.o cipcomms.o mcpsupervisor_plugin_import.o moc_mcpprocessbase.o moc_supervisor.o moc_cipcomms.o -L/usr/lib/i386-linux-gnu/mesa -L/usr/local/Qt-5.5.1/lib -lQt5Xml -lQt5Widgets -L/usr/local/Qt-5.5.1/plugins/bearer -lqconnmanbearer -lqgenericbearer -lqnmbearer -lQt5Network -L/usr/local/Qt-5.5.1/plugins/platforms -lqxcb -L/usr/local/Qt-5.5.1/plugins/xcbglintegrations -lqxcb-glx-integration -lxcb-glx -lQt5XcbQpa -lX11-xcb -lXi -lxcb-render-util -lxcb-render -lxcb -lxcb-image -lxcb-icccm -lxcb-sync -lxcb-xfixes -lxcb-shm -lxcb-randr -lxcb-shape -lxcb-keysyms -lxcb-xkb -lQt5PlatformSupport -lfontconfig -lfreetype -lQt5DBus -lXrender -lXext -lX11 -L/usr/local/Qt-5.5.1/plugins/imageformats -lqdds -lqicns -lqico -lqjp2 -lqmng -lqtga -lqtiff -lqwbmp -lqwebp -lQt5Gui -lpng -lqtharfbuzzng -lQt5Core -lz -licui18n -licuuc -licudata -lqtpcre -lm -ldl -pthread -lgthread-2.0 -lglib-2.0 -lrt -lGL -lpthread
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libX11.a(CrGlCur.o): In function open_library':
(.text+0x33): warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/bin/ld: cannot find -lGL
/usr/local/Qt-5.5.1/plugins/imageformats/libqjp2.a(jas_stream.o): In functionjas_stream_tmpfile':
jas_stream.c:(.text+0x7a4): warning: the use of tmpnam' is dangerous, better usemkstemp'
/usr/local/Qt-5.5.1/lib/libQt5Core.a(qfilesystemengine_unix.o): In function QFileSystemEngine::resolveGroupName(unsigned int)':
qfilesystemengine_unix.cpp:(.text+0x943): warning: Using 'getgrgid_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libglib-2.0.a(libglib_2_0_la-gutils.o): In functiong_get_user_database_entry':
(.text+0x25a): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libglib-2.0.a(libglib_2_0_la-gutils.o): In function g_get_user_database_entry':
(.text+0xa3): warning: Using 'getpwnam_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/local/Qt-5.5.1/lib/libQt5Core.a(qfilesystemengine_unix.o): In functionQFileSystemEngine::resolveUserName(unsigned int)':
qfilesystemengine_unix.cpp:(.text+0x592): warning: Using 'getpwuid_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/local/Qt-5.5.1/lib/libQt5Network.a(qhostinfo_unix.o): In function `QHostInfoAgent::fromName(QString const&)':
qhostinfo_unix.cpp:(.text+0x580): warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
collect2: error: ld returned 1 exit status
make: *** [../targetRel/McpSupervisor] Error 1
09:49:17: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project qtMain (kit: Qt 5.5.1 GCC 32bit Static)
When executing step "Make"
09:49:17: Elapsed time: 00:08.

Answer 1

What is your actual problem :
You have unmet dependencies .
You are thinking that you have all the required dependencies because you installed
sudo apt-get install libglu1-mesa-dev
sudo apt-get install libgl1-mesa-dev
The problem is that you have a i386 system that is x32 system.
But you have installed development files for x64 systems using the commands above
Here is the ANSWER :
Intsall the following things
sudo apt-get install libgl1-mesa-dev:i386
sudo apt-get install libglu1-mesa-dev:i386
Now it should work ;)
Some other helpful stuff for visitors to this particular question
The lines below were my attempt to solve the problem but they did not work because the person who asked the question has a x32 system but the comments below work for x64 systems . But never the less the meta answer below will serve well for people who have the same problem and x64 systems. And also it will help problem to understand what are the basic steps to do after a similar problem occurs
# code_fodder I wanted to ask a question by making a comment below your question but I do not have 50 reputations to do so.
So I have to use the answer submission form to do so. :(
Do you have Miscellaneous Mesa GL utilities ?
If you dont have them then install using
sudo apt-get install mesa-utils
If you want to use OpenGl ES then you have to install Miscellaneous Mesa utilies (opengles, egl) using
sudo apt-get install mesa-utils-extra
Let me know if that works .
POSTING NEW INFORMATION ON 17-DEC-2015
I will post a portion of my project.pro file here . It specifically contains the library linking methods that I used for a simple OpenGL project.
I am using GLEW with OpenGL and SDL2
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp \
mesh.cpp \
display.cpp \
shader.cpp
HEADERS += \
mesh.h \
display.h\
shader.h
unix|win32: LIBS += -lGL \
-lGLEW \
/usr/local/lib/libSDL2-2.0.so
As you can notice I am using both static and dynamically linked libraries.
You may need to add:
unix | win32: LIBS += -L/usr/lib/x86_64-linux-gnu/mesa/ to your .pro file. However the path may be different for 32 bit systems. In that folder there are is the required mesa library files. These are the files for my system.
zehel#zehel-PC:/usr/lib/x86_64-linux-gnu/mesa$ ls
ld.so.conf libGL.so libGL.so.1 libGL.so.1.2.0
Try compiling now and see if that works
If that doesn't then either you have unmet dependencies or you are using old OpenGL.
Now after running the sudo apt-get install mesa-utils you will be able to use a command called glxinfo . It will show you all required information about your graphics card.
Run glxinfo | grep "OpenGl version string"
It will show you what version of OpenGl and mesa you have
mine is like this
OpenGL version string: 3.0 Mesa 10.3.2
If they are less than 3.0 then you are not using modern OpenGL and you may want to update your graphics drivers.
But if they are 3.0 or above then you are probably okay.
I cant reproduce your problem so I think that you have missing dependencies
See this posts on the QT forum where people with same problem as you are saying that there problems were fixed after installing the dependencies
http://forum.qt.io/topic/36282/solved-qt-5-2-0-and-lgl-issue
The last answer in the qt forum is quite good please refer it.
Update me whether it works or not .
Hope That helps .

Answer 2

You might need to specify the path where the GL library can be found, for exmaple by using the -L option to GCC, which has the following man page description:
-Ldir
Add directory dir to the list of directories to be searched for -l.