[sr #110297] AC_PATH_PROG should accept a basename as an override

[Zack Weinberg]

URL:
  <https://savannah.gnu.org/support/?110297>

                 Summary: AC_PATH_PROG should accept a basename as an override
                 Project: Autoconf
            Submitted by: zackw
            Submitted on: Wed 26 Aug 2020 01:57:49 PM UTC
                Category: None
                Priority: 5 - Normal
                Severity: 1 - Wish
                  Status: Confirmed
                 Privacy: Public
             Assigned to: zackw
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: None

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Details:

If a configure script uses AC_CHECK_PROG to find a program,  then the person
running configure can use "./configure PROGRAM=renamed" to direct configure to
use a different name for the program.  However, if it uses AC_PATH_PROG, then
the person running configure must supply an absolute path to PROGRAM,
otherwise the setting is silently ignored.  This is confusing.  If given a
relative path, it should convert it to an absolute one; if given a basename,
it should walk $PATH for that name instead.




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