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

From: Markus Elfring
Subject: [bug #51267] Improve error handling after a special command
Date: Mon, 19 Jun 2017 12:08:35 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0


                 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



I have noticed the following code fragment in a recipe which is mentioned in
the section “Generating prerequisites automatically” of the

         $(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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