c/546: -dM broken

[Joseph Myers]

>Number:         546
>Category:       c
>Synopsis:       -dM broken
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 18 02:16:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Joseph S. Myers
>Release:        2.96
>Organization:
none
>Environment:
System: Linux decomino 2.2.17 #1 Mon Sep 4 20:22:16 UTC 2000 i686 unknown
Architecture: i686

	
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
>Description:

`gcc -dM -E - </dev/null' ought to show the predefined macros.  With
current CVS, it gives no output.

>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: