hucka@eecs.umich.edu (Michael Hucka) (11/24/90)
Hi,
I am trying to learn how to use the graphics capabilities of an RS/6000 (AIX
3.1), on which we are planning to try running some programs developed on an
SGI Iris 4D. So far I have had some trouble. As a test I've copied the
jello demo sources from our Iris and tried compiling them on the IBM like
this:
cc jello.c -lgl -lm
This works fine on the Iris but on the IBM this results in
0706-317 ERROR: Unresolved or undefined symbols detected:
Symbols in error (followed by references) are
dumped to the load map.
._gl_sincos
Looking in the jello.c sources, I find that the routine "gl_sincos" (no
leading '.' character) is called in a few places. Looking at /lib/libgl.a
reveals the following:
> nm libgl.a | grep gl_sincos
00025128 T ._gl_sincos
00025128 t ._gl_sincos
So I thought maybe copying libgl.a and running ranlib over it would fix up
whatever reference was missing. No dice; same error results. I checked in
the jello.c source file and found that gl_sincos was not declared anywhere as
being external, so I added an extern statement at the top, but no change.
I searched extensively through the info facility, without luck.
Curiously, running
find /usr/include -print -exec grep gl_sincos "{}" ";"
on both the IBM and SGI in an attempt to find out where gl_sincos is located,
reveals no reference to it on either machine.
Since I'm new to both systems, I'm sure I must be making a dumb error, but I
have exhausted all my ideas. Can someone please point me in the right
direction?
Any help appreciated,
Mike
--
Mike Hucka | Internet: hucka@caen.engin.umich.edu
University of Michigan AI Lab | 1101 Beal Ave., Ann Arbor, MI 48109 mkibler@eecs.wsu.edu (Michael K. Kibler) (11/26/90)
I have jello running on my 530 and it does not make reference to gl_sincos. It uses only sin and cos. This source was ported by someone at IBM. -- ---- Mike ( ~~ Radiosity is more than just heat! ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Michael K. Kibler INTERNET: mkibler@eecs.wsu.edu Elect/Compt. Engr. Dept. UUCP : ...uunet!eecs.wsu.edu!mkibler