[bug #52017] Multiple intermediate pattern targets badly managed

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?52017>

                 Summary: Multiple intermediate pattern targets badly managed
                 Project: make
            Submitted by: None
            Submitted on: Thu 14 Sep 2017 01:48:50 PM UTC
                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: POSIX-Based
           Fixed Release: None
           Triage Status: None

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Details:

I have a Makefile using pattern rules with multiple targets. Some of the
targets are intermediate, and used on other targets.

GNU make does not identify those files are intermediate: it does not remove
them after building the targets, and it rebuild everything if they are
deleted.

In order to test the provided MWE, please execute:

make source

which will create the example source files.

In the provided MWE, if you execute:

make

(or make all)

this will create an intermediate file my.int. This file will not be deleted
after make has finished. If you delete the file manually, next execution of:

make

will rebuild everything.



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File Attachments:


-------------------------------------------------------
Date: Thu 14 Sep 2017 01:48:50 PM UTC  Name: Makefile  Size: 145B   By: None
MWE
<http://savannah.gnu.org/bugs/download.php?file_id=41803>

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