[bug #64472] $(CP) is an empty string

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?64472>

                 Summary: $(CP) is an empty string
                   Group: make
               Submitter: None
               Submitted: Wed 26 Jul 2023 02:43:06 AM UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.4
        Operating System: POSIX-Based
           Fixed Release: None
           Triage Status: None


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Follow-up Comments:


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Date: Wed 26 Jul 2023 02:43:06 AM UTC By: Anonymous
The documentation section
[https://www.gnu.org/software/make/manual/make.html#Utilities-in-Makefiles
16.2 Utilities in Makefiles] recommends us to use make variables such as
$(INSTALL) or $(RM) instead of writing the respective commands (install,
rm...), so as to allow users to override them with a suitable replacement.

That's what I did, I replaced all instances of "cp" with "$(CP)". I'm using it
to copy some file in the first target of a Makefile. But unfortunately it is
resolving to an empty string, which I first noticed by looking at the output.

expected:

cp /currentpath /newpath


actual:

/currentpath /newpath


Then I added a call to $(info $(CP))", which outputs an empty line.

I'm attaching the makefile.


GNU Make 4.4
Built for x86_64-redhat-linux-gnu


I'm on Fedora Workstation 38.






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File Attachments:


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Date: Wed 26 Jul 2023 02:43:06 AM UTC  Name: Makefile  Size: 630B   By: None
Makefile. Look at the first target, &quot;all&quot;
<http://savannah.gnu.org/bugs/download.php?file_id=54971>

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