[bug #65961] pre-html.cpp: use option "-blank-image=pass" for "pnmcrop" to avoid warnings

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?65961>

                 Summary: pre-html.cpp: use option "-blank-image=pass" for
"pnmcrop" to avoid  warnings
                   Group: GNU roff
               Submitter: bjarniig
               Submitted: Sun 07 Jul 2024 12:48:19 PM UTC
                Category: Preprocessor html
                Severity: 3 - Normal
              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: Sun 07 Jul 2024 12:48:19 PM UTC By: Bjarni Ingi Gislason <bjarniig>
Subject: pre-html.cpp: use option "-blank-image=pass" for "pnmcrop" to avoid
warnings

Directory: src/preproc/html

  From "pnmcrop(1)" concerning the warning

nmcrop: The image is entirely background; there is nothing to crop.

(copied from the file PROBLEMS.)

-blank-image={abort|pass|minimize|maxcrop}
       This determines how pnmcrop handles an image which is entirely
         background (blank), a case where cropping doesn't make much sense.

The remark in the file "PROBLEMS" should then be revised (dropped).








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