[bug #51267] Improve error handling after a special command

[Markus Elfring]

URL:
  <http://savannah.gnu.org/bugs/?51267>

                 Summary: Improve error handling after a special command
                 Project: make
            Submitted by: elfring
            Submitted on: Mon 19 Jun 2017 06:08:34 PM CEST
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.2.1
        Operating System: Any
           Fixed Release: None
           Triage Status: None

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Details:

I have noticed the following code fragment in a recipe which is mentioned in
the section “Generating prerequisites automatically” of the
documentation.
https://www.gnu.org/software/make/manual/html_node/Automatic-Prerequisites.html#index-make-depend

…
         $(CC) -M $(CPPFLAGS) $< > address@hidden; \
…

The semicolon indicates at the end that the return value is ignored there. I
imagine that further data processing should usually only be performed if this
command succeeded.
Would you like to improve the exception handling for such a situation?




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