Intermittant "Internal compiler error"

[Steve Baker <sjbaker1@airmail.net>]

gcc --version :

   egcs-2.91.66

System type:

   AMD K6-2 CPU, SuSE 6.1 distribution installed fresh from the box.

Options passed to gcc:

   c++ -DPACKAGE=\"tux_aqfh\" -DVERSION=\"1.0.7\" -DHAVE_LIBGL=1
       -DHAVE_LIBGLU=1 -DHAVE_LIBGLUT=1 -DSTDC_HEADERS=1
       -DHAVE_GL_GL_H=1 -DHAVE_GL_GLUT_H=1 -DLINUX_JOYSTICK_IS_PRESENT=1
       -I. -I.  -I/usr/local/plib/include    -g -O2 -O6 -Wall
       -c gfx.cxx

Preprocessed output of the source file that caused the compiler error 

   I have been unable to trap this (see below).

Explanation:

   I'm maintaining a freeware game "Tux the Penguin - A Quest for
Herring",
and I find that in the course of compiling the 100 or so source files,
one
or more will throw up:

  /usr/local/plib/include/ssgKeyFlier.h: In method `void
                           ssgKeyFlier::set_velocity(struct sgCoord *)':
  In file included from tux.h:21,
                   from gfx.cxx:2:
  /usr/local/plib/include/ssgKeyFlier.h:127: Internal compiler error.
  /usr/local/plib/include/ssgKeyFlier.h:127: Please submit a full bug
report to
    `egcs-bugs@egcs.cygnus.com'.
  /usr/local/plib/include/ssgKeyFlier.h:127: See
    <URL:http://egcs.cygnus.com/faq.html#bugreport> for details.
  make[1]: *** [gfx.o] Error 1

...the error comes up at least a couple of times - in those 100 or so
compilation steps - but never on the same set of files. Re-running the
compile always seems to fix the problem, so typing 'make' a half dozen
times seems to get everything done.

You should be able to reproduce this by grabbing the PLIB libraries
here:

  http://www.woodsoup.org/projs/plib

...and doing a standard rebuild:

  ./configure ; make

There is of course a small probability that it'll make it all the
way through without hitting the error...but it's unlikely.

Also: Since I upgraded from SuSE 6.0 to 6.1, the final link has been
complaining:

  /usr/local/plib/lib/libpu.a(puPopupMenu.o): warning: multiple
                     common of `puPopup type_info node'
  /usr/local/plib/lib/libpu.a(puMenuBar.o): warning: previous
                     common is here

This is a terribly incomprehensible warning message - could
you give me a clue as to what it means in the context of a
C++ program?

Thanks in advance for any help you can offer - and keep up the
good work. Compiler writers are definitely the unsung heroes of
the OpenSource world...and I want to know that your work is
certainly appreciated.

-- 
Steve Baker                  http://web2.airmail.net/sjbaker1
sjbaker1@airmail.net (home)  http://www.woodsoup.org/~sbaker
sjbaker@hti.com      (work)