SDL 1.3 compile problem

[dosh]

I have set SDL 1.3 up on my computer in the folder sdl within my home folder and having problems compiling testGl.c which I copied over to my home folder. gcc is having problems finding the correct folder and I am after the correct gcc arguments to get this compiled. Not sure if I need to put the GL and SDL after the folder locations or what?

[slooksterpsv]

To point it to includes you do:

gcc -I/path/to/includes

To point it to libraries you do:

gcc -L/path/to/libraries

Try that, it uses what you specify in -I or -L first before continuing with the other "search paths"

[dosh]

With gcc testgl.c -o testgl -I/home/joe/sdl/include -L/home/joe/sdl/lib -L/home/joe/sdl/include/sdl/GL

I get it to compile but when I try to run it I get
"No OpenGL support on this system"

However I thought sdl 1.3 came with it plus I have OpenGl installed and have compiled programs with SDL 1.2 and OpenGL.

[fct]

The SDL libraries normally build also an utility, sdl-config, that provides the necessary flags for compilation. Sample usage:

$ gcc `sdl-config --libs --cflags` -o something something.cpp

Now, I don't know what's the path where it's built by default.

[dosh]

I think the problem is in the paths it is looking at. I have extracted and installed it into a sdl folder inside my home folder. that is /home/joe/sdl . The folder for OpenGl files I presume is the one it is having problems with. For SDL 1.2 which is in the default area no problems I would put (if file was test.c)
"gcc test.c -o test -lSDL -lGL"

and it would compile. Yet having problems when I have SDL 1.3 as well in another folder not the default one.

[Zugzwang]

@OP: Could you copy&paste the output when running the configure-script of the SDL library before you compile it?

[fct]

Using sdl-config is worth a try. Really.

[dosh]

fct I have tryed the sdl-config with the same result. I it is just not recognising the openGL directory. The sdl seems OK I was able to run a program that shows the version and it came back as 1.3 The problem seems to be the openGL directory. Do I need to set the library directory for that? And how?

Zugzwang not understanding what you mean. Do you want a copy of the sdl-config file?

[Zugzwang]

Zugzwang not understanding what you mean. Do you want a copy of the sdl-config file?

You said that you have set up SDL 1.3 on your computer. Since version 1.3 is not part of Ubuntu, this means that you have extracted the SDL .tar.gz file of the libsdl into some directory and ran "./configure" to build it (because that's a required part of the installation process unless you install it as a Ubuntu package). When doing so, the "./configure" script generates a lot of messages. Please copy&paste them here.

[dosh]

Zugzwang does it create a file or you talking about the messeages received in the terminal when I ran ./config , if they don't make a file they are gone and I would need to rebuild to get them.