Please help!
 

Hi

I have to use OpenGL for a simple game project and have trouble compiling. I'm currently running Backtrack4 (as the Linux environment for coding) through VirtualBox in Windows7 and I code using C++. I have three problems:

1. The computer I use to do the coding on, doesn't have Internet access so I had to download the mesa-utils using another computer and then installed them manually (copying the appropriate files into the /usr/include/ folders - lib, GL, and share respectively). I'm not sure if I did it correctly, because:

2. When I try to compile I get the following errors:

/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.3.2/../../../../lib/libglut.a when searching for -lglut

/usr/bin/ld: skipping incompatible /usr/lib/../lib/libglut.a when searching for -lglut

/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.3.2/../../../libglut.a when searching for -lglut

/usr/bin/ld: skipping incompatible /usr/lib/libglut.a when searching for -lglut

/usr/bin/ld: cannot find -lglut
collect2: ld returned 1 exit status

So, it seems as if it can't find -lglut...

3. I'm not sure how to compile:
g++ -lGL -lGLU -lglut main.C -o main
OR
gcc -lGL -lGLU -lglut main.C -o main

I know these are probably really stupid questions, but I would greatly appreciate it if someone can help me.

Thank you
m4h

Do you have libglut-devel fully installed?

It may be you are running a 64 bit OS, but the libraries you have (the "i486" part) suggests you 32 bit libraries and 64 bit ones.

glut has a VERY LONG and very well documented instructions in the source
for windows
mac
and linux
even for sun

you might want to read them
AND VERY VERY IMPORTANT
CHANGE THE NAME TO SOMETHING USEFUL LIKE
"help with building glut"

corp769, how would I know if I have it fully installed? What files should be where? As I have said, I had to manually copy the files from the mesa-package to their corresponding folders in root/usr. I haven't done anything other than that.

glut
http://www.opengl.org/resources/libr..._downloads.php
in the source are the instructions
and part of them is that YOU have to copy/paste the *.so or *.a into /usr/lib
did you ?
then did you run "ranlib"
and copy /paste the header files ( *.h) into /usr/include/GL

I tried to copy the .so file into usr/lib but it gives an error stating "/usr/lib/libglut.so.3.9.0 does not exist". What should I do about that. Thanks a lot for trying to help me.

Backtrack 4 is based on Ubuntu 8.10 Intrepid.
If you want to make things easier, then use a supported OS for development.
Ubuntu 8.10 has been unsupported for long time.

Ubuntu 8.10 glut :
freeglut3-dev_2.4.0-6.1_i386.deb freeglut3_2.4.0-6.1ubuntu1_i386.deb
The old archive http://old-releases.ubuntu.com/ubuntu/
> > http://old-releases.ubuntu.com/ubunt...in/f/freeglut/

.

Thanks, I'll try to get the Ubuntu 8.10 glut and see if it works. After many unsuccessful attempts to obtain a distro that has a g++ compiler, Backtrack4 was the only one that had one, that's why I'm using Backtrack and not one of the other OSes.

All Linux OS has at least one g++ compiler, most have two to four
that can be installed at the same time.
Debian, Ubuntu, Mint : package names = g++ and g++-<version>.
Fedora, Mandriva, CentOS : package name = gcc-c++, compat-gcc34-c++.
Suse : package names = gcc-c++, gcc33-c++, gcc41-c++, gcc43-c++, gcc45-c++.

Slackware: gcc-g++-4.4.4

# 11 : Slackware is a good example. All basic development tools / files
are included, when the OS is installed. Ideal, when the OP has no internet.


Using Backtrack for development should be last choice.
Backtrack is meant to be used as a live cd for forensics only.

..

You are doing it wrong - .so files are typically symbolic links.

Start from

http://www.yolinux.com/TUTORIALS/Lib...ndDynamic.html
http://www.faqs.org/docs/Linux-HOWTO...ary-HOWTO.html
http://linux.org/docs/ldp/howto/Prog...WTO/index.html

and, anyway, better use your distro package manager.

Okay, thanks. I'll see if I can maybe get another OS installed and will use the links Sergei gave. Thanks again! Hope that everything is sorted out when I post here again.