#: 19496 S12/OS9/68000 (OSK)
    18-Dec-93  12:05:24
Sb: #19490-GNU C
Fm: Bob van der Poel 76510,2203
To: Zack Sessions 71532,1555 (X)

Two quick things come to mind (I recall a similar problem!):

1. Do a 'count stdio.h -b' to make sure that there are no $0As in the
   the file.

2. Are there any C++ type comments (//) in the file? The current version of
   GCC does not appear to like C++ style comments.

If this doesn't help, could you include a few lines from before the error in a
message...might twig something. Could be that are using a defined type which
hasn't be defined????