[sr #110348] Simplify rules for when configure enters cross-compiling mode

[Zack Weinberg]

URL:
  <https://savannah.gnu.org/support/?110348>

                 Summary: Simplify rules for when configure enters
cross-compiling mode
                 Project: Autoconf
            Submitted by: zackw
            Submitted on: Fri 30 Oct 2020 09:12:43 PM UTC
                Category: None
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: None

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Details:

Remove the "FIXME: To remove some day" code at the end of _AC_INIT_PARSE_ARGS
that can set $cross_compiling to "maybe", and the corresponding code in
_AC_COMPILER_EXEEXT_CROSS. The new behavior would be that if you specify
--host=<anything> and
don't also say --build=<same anything>, cross compilation mode is
engaged.

This should *not* be done for 2.70, but maybe it should be done early in the
2.71 cycle.




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