🚀 go-pugleaf

I need gcc version 2.5.8 in order to be able to compile the stanford
SUIF compiler.

However, prep.ai.mit.edu does not have version 2.5.8.  It has
    version 2.6.3
and it has diffs that would let me get back to 2.6.0
But there are no diffs to go back to 2.5.8

On the other hand there appear to be diffs from 2.5.8 back to 2.5.7,
then back to 2.5.6 and so forth all the way back to 2.0, but there is
no base non-diff version for any of those.  I.e., I can't find 2.0.

Am I misusing prep.ai.mit.edu or is there really a problem here?

Also, gatekeeper.dec.com has the same set of files.

-Bradley

P.S., This is what ls gives me in prep.ai.mit.edu:/pub/gnu (I only am
including the files that start with "gcc")

     -rw-r--r--  1 14910      411207 Mar 25  1992 gcc-2.0-2.1.diff.gz
     -rw-r--r--  1 14910      650987 Jun  9  1992 gcc-2.1-2.2.1.diff.gz
     -rw-r--r--  1 14910        1008 Jun  9  1992 gcc-2.2-2.2.1.diff.gz
     -rw-r--r--  1 14910        7644 Jun 16  1992 gcc-2.2.1-2.2.2.diff.gz
     -rw-r--r--  1 14910     1095806 Nov  1  1992 gcc-2.2.2-2.3.1.diff.gz
     -rw-r--r--  1 14910      149616 Nov 28  1992 gcc-2.3.1-2.3.2.diff.gz
     -rw-r--r--  1 14910       45602 Dec 26  1992 gcc-2.3.2-2.3.3.diff.gz
     -rw-r--r--  1 14910      219183 May 17  1993 gcc-2.3.3-testsuite.tar.gz
     -rw-r--r--  1 14910       61227 May 26  1993 gcc-2.4.0-2.4.1.diff.gz
     -rw-r--r--  1 14910       14465 May 31  1993 gcc-2.4.1-2.4.2.diff.gz
     -rw-r--r--  1 14910       15028 Jun  4  1993 gcc-2.4.2-2.4.3.1.diff.gz
     -rw-r--r--  1 14910       15028 Jun  6  1993 gcc-2.4.2-2.4.3.diff.gz
     -rw-r--r--  1 14910       18590 Jun 11  1993 gcc-2.4.3-2.4.3.1.diff.gz
     -rw-r--r--  1 14910       60085 Jun 20  1993 gcc-2.4.3.1-2.4.4.diff.gz
     -rw-r--r--  1 14910        4023 Jun 21  1993 gcc-2.4.4-2.4.5.diff.gz
     lrwxr-xr-x  1 14910          24 Oct 22  1993 gcc-2.4.5-2.5.0.diff.gz -> gcc-2.4.5-2.5.0a.diff.gz
     -rw-r--r--  1 14910      984825 Oct 22  1993 gcc-2.4.5-2.5.0a.diff.gz
     -rw-r--r--  1 14910        6267 Oct 22  1993 gcc-2.5.0-2.5.0a.diff.gz
     -rw-r--r--  1 14910       43347 Oct 31  1993 gcc-2.5.0-2.5.1.diff.gz
     -rw-r--r--  1 14910       43367 Nov  1  1993 gcc-2.5.0-2.5.2.diff.gz
     -rw-r--r--  1 14910        1010 Nov  1  1993 gcc-2.5.1-2.5.2.diff.gz
     -rw-r--r--  1 14910       78731 Nov 11  1993 gcc-2.5.2-2.5.3.diff.gz
     -rw-r--r--  1 14910       13931 Nov 17  1993 gcc-2.5.3-2.5.4.diff.gz
     -rw-r--r--  1 14910       76271 Nov 27  1993 gcc-2.5.4-2.5.5.diff.gz
     -rw-r--r--  1 14910        8047 Dec  3  1993 gcc-2.5.5-2.5.6.diff.gz
     -rw-r--r--  1 14910       10753 Dec 12  1993 gcc-2.5.6-2.5.7.diff.gz
     -rw-r--r--  1 14910       14726 Jan 24  1994 gcc-2.5.7-2.5.8.diff.gz
     -rw-r--r--  3 14910         142 Dec  9  1994 gcc-2.5.8-2.6.0.no.diff.README
     -rw-r--r--  1 14910      533533 Nov  3  1994 gcc-2.6.0-2.6.1.diff.gz
     -rw-r--r--  1 14910       25148 Nov 12  1994 gcc-2.6.1-2.6.2.diff.gz
     -rw-r--r--  1 14910       26092 Dec  1  1994 gcc-2.6.2-2.6.3.diff.gz
     -rw-r--r--  1 14910     1559339 Jun 16 18:54 gcc-2.6.3-2.7.0.diff.gz
     -rw-r--r--  1 14910     6521230 Dec  1  1994 gcc-2.6.3.tar.gz
     -rw-r--r--  1 14910     7029714 Jun 16 18:52 gcc-2.7.0.tar.gz
     -rw-r--r--  1 14910      856531 Nov 23  1992 gcc-vms-1.42.tar.gz