In a message to me D.P. Raynaud wrote:
> 18268:./EG: /sbin/loader: Error: unresolvable symbol in
> /homes/dpr21/xforms/FORMS//libforms.so.0.86: glXQueryExtension
It looks like you're using, directly or indirect, the OpenGL to X extensions
(see "GLcanvas" in the manual), but didn't link in the OpenGL libraries.
In "our" version of XForms those are a separate object file (gl.c/o), not
in the shared library, and you should only link it in IF you're using
glcanvasses AND have a port of OpenGl available (libs GL and maybe GLU):
lrwxr-xr-x 1 root other 12 Jun 3 11:04 libGL.sl -> libMesaGL.sl
lrwxr-xr-x 1 root other 13 Jun 3 11:04 libGLU.sl -> libMesaGLU.sl
-rwxr-xr-x 1 admin admin 1101948 Jun 3 11:03 libMesaGL.sl
-rwxr-xr-x 1 admin admin 127395 Jun 3 11:03 libMesaGLU.sl
lrwxr-xr-x 1 admin admin 15 May 29 10:02 libforms.a -> libforms.a.0.88
-rw-r--r-- 1 admin admin 709028 May 29 10:01 libforms.a.0.86
-rw-r--r-- 1 admin admin 864112 May 29 10:01 libforms.a.0.88
lrwxr-xr-x 1 admin admin 16 May 29 10:02 libforms.sl -> libforms.sl.0.88
-rwxr-xr-x 1 admin admin 688128 May 29 10:01 libforms.sl.0.86
-rwxr-xr-x 1 admin admin 831488 May 29 10:01 libforms.sl.0.88
(the gl.o file is somewhere else, in this installation, which is HP-UX).
But to link a program to Mesa I need somethink like:
INC=-I/usr/local/tainc
(include files, both for XForms and for OpenGl)
LIB=-L/usr/local/talib -lMesaGL -lforms -L/usr/lib/X11R5 -lX11 -lXext -lm
(libraries, first Mesa and then XForms (and normal X11 etc))
FIL=gldraw
OBJ=$(FIL).o glform.o gl.o
(gl.o is linked in separately)
.c.o:
$(CC) -c -Aa $(OPT) $(INC) $<
$(FIL): $(OBJ)
cc -o $@ $(OBJ) $(LIB)
--
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TTTTTTTTTT UU UU Eef Hartman, System Administrator
TT UU UU
TT UU UU Delft University of Technology
TT UU UU Mathematics (Applied Analysis) dept.
TT UU UU Mekelweg 4, P.O. Box 5031
TT UU UU 2600 GA Delft, The Netherlands
TT UU UU e-mail : E.J.M.Hartman@math.tudelft.nl
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