proc upgrade not working.

Hi,

After upgrading the operating(Digital 4.0) system on our oracle server, I upgraded our oracle databasae from oracle 7.1.3. to 7.2.3. At the same time I updated the proc from 2.0.3.0.0 to 2.1.3.0.0. I just recently discovered that all the code that was written for 2.0.3.0.0 will not compile under the new version. So I tried to go back to the old version and it will not compile either. The upgrade seams to have affected some file on the system that I am unaware of. Here is a section of the compilers output from the older version of proc(It is simalar to the output from the new version):

Pro*C: Release 2.0.3.0.0 - Production on Tue Oct 8 20:37:37 1996  

Copyright (c) Oracle Corporation 1979, 1994. All rights reserved.  

System default option values taken from: /u01/home/oracle/product/7.1.3/proc/pmscf g.h  

Syntax error at line 293, column 11, file /usr/include/sys/types.h:

    long                _Pfield(valid);