[bug #64155] specifying -fZD on command line generates warnings

[Dave]

URL:
  <https://savannah.gnu.org/bugs/?64155>

                 Summary: specifying -fZD on command line generates warnings
                   Group: GNU roff
               Submitter: barx
               Submitted: Fri 05 May 2023 06:41:19 PM CDT
                Category: Font - others/general
                Severity: 2 - Minor
              Item Group: Warning/Suspicious behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Fri 05 May 2023 06:41:19 PM CDT By: Dave <barx>
This bug was present in 1.22.4:


$ echo ' ' | groff -fZD -a
troff: /usr/share/groff/1.22.4/tmac/ps.tmac:686: warning: can't find character
'a'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 'p'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 's'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 'h'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 't'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 'm'
troff: /usr/share/groff/1.22.4/tmac/troffrc-end:7: warning: can't find
character 'l'
<beginning of page>
  
troff: /usr/share/groff/1.22.4/tmac/html-end.tmac:20: numeric overflow


But the number of warnings increased in 1.23.  (Pathnames below trimmed.)

$ groff --version | head -1
GNU groff version 1.23.0.rc4.19-96b92-dirty
$ echo ' ' | groff -fZD -a
troff:.../tmac/fallbacks.tmac:14: warning: character 'p' not defined
troff:.../tmac/fallbacks.tmac:14: warning: character 's' not defined
troff:.../tmac/fallbacks.tmac:14: warning: character 'a' not defined
troff:.../tmac/fallbacks.tmac:14: warning: character 'c' not defined
troff:.../tmac/fallbacks.tmac:14: warning: character 'i' not defined
troff:.../tmac/fallbacks.tmac:16: warning: character 'l' not defined
troff:.../tmac/fallbacks.tmac:16: warning: character 't' not defined
troff:.../tmac/fallbacks.tmac:16: warning: character 'n' not defined
troff:.../tmac/fallbacks.tmac:17: warning: character 'u' not defined
troff:.../tmac/fallbacks.tmac:17: warning: character 'f' not defined
troff:.../tmac/troffrc-end:7: warning: character 'h' not defined
troff:.../tmac/troffrc-end:7: warning: character 'm' not defined
<beginning of page>
  
troff:.../tmac/html-end.tmac:20: error: numeric overflow









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