After updating to 11.10 I can't link code against libgl/glut. freeglut3-dev etc. are installed and it looks like they can be found too. I'm really not sure what's going on.
Makefile
gltest: gltest.cc
gcc -Wall -lglut -lGLU -lGL gltest.cc -o gltest
gltest.cc
#include <GL/glut.h>
int main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowPosition(100,100);
//glutInitWindowSizendowSize(320,320);
glutCreateWindow("test");
return 1;
}
Output
jonas@fortress:~/dev/checkouts/test$ make
gcc -Wall -lglut -lGLU -lGL gltest.cc -o gltest
/tmp/cct1HevY.o: In function `main':
gltest.cc:(.text+0x1e): undefined reference to `glutInit'
gltest.cc:(.text+0x28): undefined reference to `glutInitDisplayMode'
gltest.cc:(.text+0x37): undefined reference to `glutInitWindowPosition'
gltest.cc:(.text+0x41): undefined reference to `glutCreateWindow'
collect2: ld returned 1 exit status
make: *** [gltest] Error 1
When linking with --verbose
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../../lib/libglut.so succeeded
And then when checking the symbols in that file
$ readelf -Ws /usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../../lib/libglut.so|grep glutInit
278: 000000000001dfc0 1581 FUNC GLOBAL DEFAULT 11 glutInit
I'm very confused now.