Article 51486 of comp.sys.dec:
We have a patched DEC C compiler that fixes the compiler crash
that occurs when building the xemacs abbrev.c file.  
The crash was reported earlier in this newsgroup.  See the README
below for details.

Joe Mario
DEC C compiler group.
 

--

May 8, 1997
README.txt for V5.2-038:

This compiler is DEC C V5.2-038

This version of the DEC C for UNIX compiler is designed for use only
on Digital UNIX V4.0 through V4.0C systems.  It is being made 
available over the internet via anonymous ftp to provide wide
availability quickly because of the large number of users likely
affected by the compiler crash when building xemacs.

It is also being submitted to the Digital UNIX support pools, and 
will be available through normal support channels in the future.

The file you are reading is available through the web as URL

  ftp://gatekeeper.dec.com/private/decc/UNIX/V5.2-038/README.txt

and the compressed compiler image is available as:

 
ftp://gatekeeper.dec.com/private/decc/UNIX/V5.2-038/gemc_cc.V5.2-038.tar.Z

Alternatively, you may download manually using anonymous ftp:

    % ftp gatekeeper.dec.com
    Name (gatekeeper.dec.com:username): anonymous
    331 Guest login ok, send ident as password.
    Password: <enter your internet address>
    ftp> binary
    200 Type set to I.
    ftp> cd /private/decc/UNIX/V5.2-038
    250 CWD command successful.
    ftp> get gemc_cc.V5.2-038.tar.Z
    200 PORT command successful.
    150 Opening BINARY mode data connection for gemc_cc.V5.2-038.tar.Z 
    226 Transfer complete.
    2517409 bytes received in 1.6e+02 seconds (15 Kbytes/s)
    ftp> quit
    221 Goodbye.
    %

To unpack and install:

    % zcat gemc_cc.V5.2-038.tar.Z | tar xvf -
    blocksize = ...
    x gemc_cc.V5.2-038, ..... bytes, .... tape blocks
    % ./gemc_cc.V5.2-038 -V
    DEC C V5.2-038 on Digital UNIX V4.0...<version detail>
    % rm gemc_cc.V5.2-038.tar.Z
    % su
    # mv /usr/lib/cmplrs/cc/gemc_cc /usr/lib/cmplrs/cc/gemc_cc.orig
    # mv gemc_cc.V5.2-038 /usr/lib/cmplrs/cc/gemc_cc

        
The specific bugs prompting the issue of this compiler are:

  1.  Compiler crash during xemacs build on Digital UNIX V4.0.
      This was reported in comp.sys.dec and comp.emacs.xemacs. 
      The current workaround is to use "cc -oldc".   

  2.  Compiler error with valid token-pasting macro.  This problem 
      was originally reported via netnews as comp.unix.osf.osf1.