On Saturday 22 April 2006 04:25, Dan Nicholson wrote:
> On 4/21/06, linux23dragon <[EMAIL PROTECTED]> wrote:
> > The only way I could get the "fgl-gears32.c" to compile, was to create
> > symbolic links (for testing perposes only) from
> > /opt/lib{libGL*,LibXrender*} to /usr/lib.
>
> <snip>
>
> > [EMAIL PROTECTED]:~/fgl_glxgears32$ make
> > cc -o fgl_glxgears32 -lGL -lXrender fgl_glxgears32.o
> > /usr/bin/ld: cannot find -lGL
> > collect2: ld returned 1 exit status
> > make: *** [fgl_glxgears32] Error 1
> > [EMAIL PROTECTED]:~/fgl_glxgears32$
>
> This is because /usr/bin/ld isn't controlled by /etc/ld.so.conf. It's
> a bit confusing at first, but there are two ld's. One is
> /lib/ld-linux.so.2, the dynamic linker from glibc. This is controlled
> by /etc/ld.so.conf and determines where shared libraries are found at
> run time.
>
> When compiling, gcc and /usr/bin/ld, the dynamic loader from binutils,
> need to find libraries like libGL.so in this case. In general, gcc
> tells ld where to find the libraries using a built in path. If a
> library is outside the path, you can add its directory with a -L
> directive. Normally, configure figures this out for you and you don't
> have to do anything. In this case, though, you'd have to put
> -L/opt/lib in front of -lGL on the LIB line in Makefile. You could
> probably pass it with a variable, too, but I don't know how the shell
> script works.
That did the trick Dan. Thanks.
It looks like I have to learn up on editing or configuring my own Makefiles,
when situations like this pop up from time to time :)
>
> > Oh yea, on the side note. If you install the Nvidia Open-gl libs in
> > /opt, you will find that the libGL.la file will have this following
> > line:
> >
> > -------//---start of line 13 0f the /opt/lib/libGL.la file-------//-----
> >
> > # Libraries that this one depends upon.
> > dependency_libs=' -L/usr/X11R6/lib -lm -lXext -lX11 -ldl'
>
> Stuff like this unfortunately happens here and there with people
> hard-coding the location of /usr/X11R6.
>
> --
> Dan
Do you think it would be a good idea for me to create a /usr/X11R6/lib link
to /opt/lib?
Regards
Dave
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