Hi Dave, Why is it installing prerelease automake in a different prefix for testing hasn't required also installing libtool to the same prefix
In general, I think it does. And always has. This is not new behavior, as far as I can see. (think back to your "baffled" comment)? Indeed :). Looking into that further, the main external package I test with is TeX Live. Although I had forgotten earlier, for TL we long ago put a copy of libtool.m4 into TL itself (and methods to keep it in sync), to ease exactly this sort of problem. So I believe that's why I have not seen it. A) Perhaps the prerelease announcements should mention the issue somehow [...] B) Perhaps the libtool macros not found error message could hint at this cause alongside the stuff about ensuring LT_INIT is used. Both are good ideas. I'll take a look. Thanks!