Undefined reference to glut

Morales1235

Hello everyone,
I'm new in using Debian and Qt. Tried to compile simple project, wrote by my friend in C::B. I was trying include all libraries, update debugger, compilers.. but still:

~/Dokumenty/projects/test7$ make
g++ -c -m64 -pipe -O2 -Wall -W -D_REENTRANT -DQT_WEBKIT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I/usr/include/GL -I. -o main.o main.cpp
main.cpp:80:56: warning: unused parameter ‘mouse_x’ [-Wunused-parameter]
 void FunkcjaDoObslugiKlawiatury(unsigned char key, int mouse_x, int mouse_y)
                                                        ^
main.cpp:80:69: warning: unused parameter ‘mouse_y’ [-Wunused-parameter]
 void FunkcjaDoObslugiKlawiatury(unsigned char key, int mouse_x, int mouse_y)
                                                                     ^
main.cpp: In function ‘int main(int, char**)’:
main.cpp:142:35: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
  InitGLUTScene("freeglut template");
                                   ^
g++ -c -m64 -pipe -O2 -Wall -W -D_REENTRANT -DQT_WEBKIT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I/usr/include/GL -I. -o Prostokat.o Prostokat.cpp
Prostokat.cpp: In constructor ‘Prostokat::Prostokat()’:
Prostokat.cpp:8:20: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
                    ^
Prostokat.cpp:8:10: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
          ^
Prostokat.cpp: In constructor ‘Prostokat::Prostokat(double, double, double, double)’:
Prostokat.cpp:14:20: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
                    ^
Prostokat.cpp:14:10: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
          ^
g++ -m64 -Wl,-O1 -o test7 main.o Prostokat.o    -L/usr/lib/x86_64-linux-gnu -lQtGui -lQtCore -lpthread 
main.o: In function `resize(int, int)':
main.cpp:(.text+0x27): undefined reference to `glViewport'
main.cpp:(.text+0x31): undefined reference to `glMatrixMode'
main.cpp:(.text+0x36): undefined reference to `glLoadIdentity'
main.cpp:(.text+0x74): undefined reference to `glFrustum'
main.cpp:(.text+0xaa): undefined reference to `gluLookAt'
main.cpp:(.text+0xb6): undefined reference to `glMatrixMode'
main.o: In function `display()':
main.cpp:(.text+0xea): undefined reference to `glClear'
main.cpp:(.text+0xef): undefined reference to `glPushMatrix'
main.cpp:(.text+0x104): undefined reference to `glTranslated'
main.cpp:(.text+0x12d): undefined reference to `glRotated'
main.cpp:(.text+0x152): undefined reference to `glTranslated'
main.cpp:(.text+0x183): undefined reference to `glTranslated'
main.cpp:(.text+0x1b0): undefined reference to `glRotated'
main.cpp:(.text+0x1d9): undefined reference to `glTranslated'
main.cpp:(.text+0x212): undefined reference to `glTranslated'
main.cpp:(.text+0x242): undefined reference to `glRotated'
main.cpp:(.text+0x271): undefined reference to `glTranslatef'
main.cpp:(.text+0x289): undefined reference to `glPopMatrix'
main.o: In function `InitGLUTScene(char*)':
main.cpp:(.text+0x3cf): undefined reference to `glutInitWindowSize'
main.cpp:(.text+0x3de): undefined reference to `glutInitWindowPosition'
main.cpp:(.text+0x3e8): undefined reference to `glutInitDisplayMode'
main.cpp:(.text+0x3f0): undefined reference to `glutCreateWindow'
main.cpp:(.text+0x406): undefined reference to `glClearColor'
main.cpp:(.text+0x410): undefined reference to `glEnable'
main.cpp:(.text+0x41a): undefined reference to `glDepthFunc'
main.cpp:(.text+0x424): undefined reference to `glEnable'
main.cpp:(.text+0x42e): undefined reference to `glEnable'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x44a): undefined reference to `glutReshapeFunc'
main.cpp:(.text+0x454): undefined reference to `glutDisplayFunc'
main.cpp:(.text+0x45e): undefined reference to `glutIdleFunc'
main.o: In function `resize(int, int)':
main.cpp:(.text+0xbf): undefined reference to `glLoadIdentity'
main.o: In function `idle()':
main.cpp:(.text+0xd1): undefined reference to `glutPostRedisplay'
main.o: In function `display()':
main.cpp:(.text+0x292): undefined reference to `glutSwapBuffers'
main.o: In function `InitGLUTScene(char*)':
main.cpp:(.text+0x439): undefined reference to `glEnable'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x46c): undefined reference to `glutKeyboardFunc'
main.o: In function `main':
main.cpp:(.text.startup+0x13b): undefined reference to `glutInit'
main.cpp:(.text.startup+0x14f): undefined reference to `glutMainLoop'
Prostokat.o: In function `Prostokat::rysuj()':
Prostokat.cpp:(.text+0xd9): undefined reference to `glPushMatrix'
Prostokat.cpp:(.text+0xeb): undefined reference to `glTranslated'
Prostokat.cpp:(.text+0xff): undefined reference to `glColor3d'
Prostokat.cpp:(.text+0x109): undefined reference to `glBegin'
Prostokat.cpp:(.text+0x143): undefined reference to `glVertex3d'
Prostokat.cpp:(.text+0x164): undefined reference to `glVertex3d'
Prostokat.cpp:(.text+0x18f): undefined reference to `glVertex3d'
Prostokat.cpp:(.text+0x1be): undefined reference to `glVertex3d'
Prostokat.cpp:(.text+0x1c3): undefined reference to `glEnd'
Prostokat.cpp:(.text+0x1cd): undefined reference to `glPopMatrix'
collect2: error: ld returned 1 exit status
Makefile:105: polecenia dla obiektu 'test7' nie powiodły się
make: *** [test7] Błąd 1

Program was wrote on Windows, we were trying to set it on linux. When I was trying, there wasn't the first errors, just "undefined reference". Friend do something to run it in C::B - programs compiles. But not by Qt
looks like error in linker? But What im doing wrong?
int test7.pro:

######################################################################
# Automatically generated by qmake (2.01a) niedz. gru 18 12:46:25 2016
######################################################################

TEMPLATE = app
TARGET = 
DEPENDPATH += .
INCLUDEPATH += /usr/include/GL
# Input
HEADERS += Prostokat.h sKolor.h
SOURCES += main.cpp Prostokat.cpp

The same errors when compiling i.e. tutorials from inernet. Thank you in advance!

? Offline

Hi! First of all you're using ancient Qt 4, which is a bad idea for new code. Second, you need to link your application to the glut library, something like: -lglut.

Morales1235

Oh yes I found it.. using Qt5 now. Tried to include:

INCLUDEPATH += /usr/include/GL -lglut -lGL -libglut -lfreeglut

less errors, just:

$ make clean
$ qmake
$ make
g++ -m64 -Wl,-O1 -o test7 main.o Prostokat.o   -L/usr/X11R6/lib64 -lQt5Gui -lQt5Core -lGL -lpthread 
main.o: In function `resize(int, int)':
main.cpp:(.text+0xaa): undefined reference to `gluLookAt'
main.o: In function `InitGLUTScene(char*)':
main.cpp:(.text+0x3af): undefined reference to `glutInitWindowSize'
main.cpp:(.text+0x3be): undefined reference to `glutInitWindowPosition'
main.cpp:(.text+0x3c8): undefined reference to `glutInitDisplayMode'
main.cpp:(.text+0x3d0): undefined reference to `glutCreateWindow'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x42c): undefined reference to `glutReshapeFunc'
main.cpp:(.text+0x438): undefined reference to `glutDisplayFunc'
main.cpp:(.text+0x444): undefined reference to `glutIdleFunc'
main.o: In function `idle()':
main.cpp:(.text+0xd1): undefined reference to `glutPostRedisplay'
main.o: In function `display()':
main.cpp:(.text+0x27a): undefined reference to `glutSwapBuffers'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x454): undefined reference to `glutKeyboardFunc'
main.o: In function `main':
main.cpp:(.text.startup+0x132): undefined reference to `glutInit'
main.cpp:(.text.startup+0x148): undefined reference to `glutMainLoop'
collect2: error: ld returned 1 exit status
Makefile:137: polecenia dla obiektu 'test7' nie powiodły się
make: *** [test7] Błąd 1

tried to add every name of lib i found on internet...
in includepath I should add path to *.h files?

I also tried

INCLUDEPATH += /usr/include/GL -lglut -lGL -libglut -lfreeglut \
/usr/lib lglut -lGL -libglut -lfreeglut -llibglut

what gives me more errors

main.cpp: In function ‘int main(int, char**)’:
main.cpp:163:35: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
  InitGLUTScene("freeglut template");
                                   ^
g++ -c -m64 -pipe -O2 -Wall -W -D_REENTRANT -fPIE -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++-64 -I. -isystem /usr/include/GL -I-lglut -I-lGL -I-libglut -I-lfreeglut -I-llibglut -I/usr/lib -Ilglut -I-lGL -I-libglut -I-lfreeglut -I-llibglut -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore -I. -o Prostokat.o Prostokat.cpp
Prostokat.cpp: In constructor ‘Prostokat::Prostokat()’:
Prostokat.cpp:8:20: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
                    ^
Prostokat.cpp:8:10: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
          ^
Prostokat.cpp: In constructor ‘Prostokat::Prostokat(double, double, double, double)’:
Prostokat.cpp:14:20: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
                    ^
Prostokat.cpp:14:10: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
  m_kolor = { 1,0,0 };
          ^
g++ -m64 -Wl,-O1 -o test7 main.o Prostokat.o   -L/usr/X11R6/lib64 -lQt5Gui -lQt5Core -lGL -lpthread 
main.o: In function `resize(int, int)':
main.cpp:(.text+0xaa): undefined reference to `gluLookAt'
main.o: In function `InitGLUTScene(char*)':
main.cpp:(.text+0x3af): undefined reference to `glutInitWindowSize'
main.cpp:(.text+0x3be): undefined reference to `glutInitWindowPosition'
main.cpp:(.text+0x3c8): undefined reference to `glutInitDisplayMode'
main.cpp:(.text+0x3d0): undefined reference to `glutCreateWindow'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x42c): undefined reference to `glutReshapeFunc'
main.cpp:(.text+0x438): undefined reference to `glutDisplayFunc'
main.cpp:(.text+0x444): undefined reference to `glutIdleFunc'
main.o: In function `idle()':
main.cpp:(.text+0xd1): undefined reference to `glutPostRedisplay'
main.o: In function `display()':
main.cpp:(.text+0x27a): undefined reference to `glutSwapBuffers'
main.o: In function `SetCallbackFunctions()':
main.cpp:(.text+0x454): undefined reference to `glutKeyboardFunc'
main.o: In function `main':
main.cpp:(.text.startup+0x132): undefined reference to `glutInit'
main.cpp:(.text.startup+0x148): undefined reference to `glutMainLoop'
collect2: error: ld returned 1 exit status
Makefile:137: polecenia dla obiektu 'test7' nie powiodły się
make: *** [test7] Błąd 1

? Offline

It should more look like this:

INCLUDEPATH += /path/to/glut/include  # where the header files are
LIBPATH     += /path/to/glut/lib # where the shared object files  are
LIBS        += -lglut # name of the library

Morales1235

Thank you!
I also had to add -lGL and -lGLU. Works