[bug #57962] apparent regression involving PATH resolution

[Frederick Eaton]

URL:
  <https://savannah.gnu.org/bugs/?57962>

                 Summary: apparent regression involving PATH resolution
                 Project: make
            Submitted by: misfit
            Submitted on: Fri 06 Mar 2020 04:24:40 AM UTC
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: None
        Operating System: None
           Fixed Release: None
           Triage Status: None

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Details:

I submitted the following to address@hidden but didn't hear back. Apologies
if this is a duplicate, as I couldn't figure out how to search outstanding
Make bugs in Savannah.

----------------

A recent change broke use of Perl in Makefiles for me. This is because I have
a PATH element with a directory called 'perl'. Here is how to reproduce it:

     $ sudo pacman -U /var/cache/pacman/pkg/make-4.2.1-4-x86_64.pkg.tar.xz
     ...
     $ mkdir -p mybin/perl
     $ cat Makefile
     PATH=mybin:/usr/bin/

     all:
             which perl
             perl -le 'print "HELLO"'
     $ make
     which perl
     /usr/bin/perl
     perl -le 'print "HELLO"'
     HELLO
     $ sudo pacman -U /var/cache/pacman/pkg/make-4.3-1-x86_64.pkg.tar.zst
     ...
     $ make
     which perl
     /usr/bin/perl
     perl -le 'print "HELLO"'
     make: perl: Permission denied
     make: *** [Makefile:5: all] Error 127

As you can see, the problem occurs with Make 4.3.1 but not 4.2.1.





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