[bug #65273] Potential bug in the info function?

[Collin Funk]

URL:
  <https://savannah.gnu.org/bugs/?65273>

                 Summary: Potential bug in the info function?
                   Group: make
               Submitter: collinfunk
               Submitted: Thu 08 Feb 2024 02:01:44 AM UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.4.1
        Operating System: POSIX-Based
           Fixed Release: None
           Triage Status: None


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Follow-up Comments:


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Date: Thu 08 Feb 2024 02:01:44 AM UTC By: Collin Funk <collinfunk>
Hello, I believe I found a bug in the way that the $(info ...) function is
processed by GNU Make. I noticed it building Emacs from master. With both Make
built from master and tag 4.4.1 building Emacs outputs a lot of undefined
variable references like so:

../src/verbose.mk:58: warning: invalid variable reference ' '
  CC       print.o
../src/verbose.mk:58: warning: invalid variable reference ' '
  CC       lread.o
../src/verbose.mk:58: warning: invalid variable reference ' '
  CC       emacs-module.o
../src/verbose.mk:58: warning: invalid variable reference ' '
  CC       syntax.o
../src/verbose.mk:58: warning: invalid variable reference ' '

The file that causes the warning can be found here:

https://git.savannah.gnu.org/cgit/emacs.git/tree/src/verbose.mk.in

This does not occur with GNU Make 4.3 packaged in Debian Stable. I'll try to
look for the cause a bit later but I am not too sure how the $(info ...)
function works. Hopefully I gave enough information to reproduce it. Thanks!







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