Re: [Plib-users] Can't find Glut
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Re: [Plib-users] Can't find Glut
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From: Sid O. <si...@bi...> - 2003-08-20 02:51:45
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Thanks for your assistance. I actually found 2 problems. One glut was
being installed into /usr/local/lib so I linked it to /usr/lib and the
second was a problem with the lib itself. I had originally recompiled
the lib from the rh9 source disk which was about 290 kb. I then
downloaded the source from mesa and compiled and installed. That lib was
over 2 mb. I don't know what extras there were but it made the
difference.
Thanks again
Sid Owen
On Tue, 2003-08-19 at 11:24, Steve Baker wrote:
> Sid Owen wrote:
>
> > When I configure Plib-1.6.0, I get an error message saying it can't find
> > a working Glut library.
>
> Yep - that's what it says.
>
> > I have looked in the config.log file but that is like gobbledygook to
> > me.
>
> Well, what configure does is to write a small C program that uses
> one specific function from the library it's testing for - then compiles
> it and see whether there were errors.
>
> So, in the check for glut:
>
> > configure: failed program was:
>
> This is the program it wrote:
>
> > #line 2801 "configure"
> > #include "confdefs.h"
> > /* Override any gcc2 internal prototype to avoid an error. */
> > /* We use char because int might match the return type of a gcc2
> > builtin and then its argument prototype would still apply. */
> > char glutGetModifiers();
> >
> > int main() {
> > glutGetModifiers()
> > ; return 0; }
>
> It's a simple program that calls glutGetModifiers - if it doesn't
> compile, that can only be because there is something wrong either
> with FINDING libglut - or LINKING to libglut.
>
> Let's see what happened:
>
> > configure:2841: checking for glutGetModifiers in -lglut
>
> OK - so here is the command it uses for compiling the test code:
>
> > configure:2860: gcc -o conftest -g -O2 -I/usr/lib/include
> > -L/usr/lib/lib -L/usr/X11R6/lib conftest.c -lglut -lGLU -lGL -lSM
> > -lICE -lXi -lXmu -lXext -lX11 -lm 1>&5
>
> ...and here are the error messages from GCC:
>
> > /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libglut.so: undefined
> > reference to `glXBindChannelToWindowSGIX'
> > /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libglut.so: undefined
> > reference to `glXQueryChannelDeltasSGIX'
> > /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libglut.so: undefined
> > reference to `glXChannelRectSyncSGIX'
> > /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libglut.so: undefined
> > reference to `glXChannelRectSGIX'
> > /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../../libglut.so: undefined
> > reference to `glXQueryChannelRectSGIX'
> > collect2: ld returned 1 exit status
>
> So, it looks like it found an installed version of libglut - but when it
> linked it into the test program, there were other undefined symbols:
>
> glXBindChannelToWindowSGIX, glXQueryChannelDeltasSGIX,
> glXChannelRectSyncSGIX, glXChannelRectSGIX, glXQueryChannelRectSGIX.
>
> These are GLX symbols that are unique to SGI computers running IRIX!!
> They are not supported under Linux at all!?!
>
> So - it *seems* like the libglut that we've got here was compiled with
> flags set for running on an SGI/IRIX machine.
>
> I think you need to remove whatever libglut(s) you have on your machine
> and re-install GLUT properly.
>
> ---------------------------- Steve Baker -------------------------
> HomeEmail: <sjb...@ai...> WorkEmail: <sj...@li...>
> HomePage : http://www.sjbaker.org
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