bug#54421: AM_PROG_AR and LT_INIT don't work together when using lib.exe

[Tim Ruffing]

On Fri, 2023-01-13 at 05:52 +0000, Mike Frysinger wrote:
> i think the expectation is that, if you're using libtool, then you
> use libtool.  

Well, I *use* libtool. libtool needs some AR. I choose to use
libtool.exe with the ar-lib wrapper.