other/2722: Option -MD does not work in gcc>2.95 in some cases

Thu May 3 02:36:00 GMT 2001

>Number:         2722
>Category:       other
>Synopsis:       Option -MD does not work in gcc>2.95 in some cases
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May 03 02:36:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     vignani@tin.it
>Release:        from gcc-2.96 to gcc-20010430
>Organization:
>Environment:
Linux Mandrake 8.0 on i686
>Description:
When using the -MD option with an output file with no
extension, gcc passes a wrong argument list to cc1. This
is related to a counter going down to -1 and a dot character
being written out of an array bound. Since the results are
unpredictable, it is not always possible to reproduce the
bug (e.g. it didn't show up on Linux Mandrake 7.2)
>How-To-Repeat:
gcc -v -MD anyfile.c -o anyfile
>Fix:
Patch provided for gcc-20010430. This avoids writing into
arg[-1] when no extension (dot) is found. Also, suffix_subst
is always appended, even with there is no filename.
Tested by recompiling gcc itself and dosemu (which uses -MD)
>Release-Note:
>Audit-Trail:
>Unformatted:
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