Hi Misty,

On Nov 4, 2014, at 4:56 AM, Misty De Meo <misty@brew.sh> wrote:
> I'm unable to get libtool 2.4.3 to build universally on OS X. It fails while calling lipo while attempting to build libltdl.la.
>
> It looks like the `find` here is returning no files, which results in lipo being called with an output file but no input files: http://git.savannah.gnu.org/cgit/libtool.git/tree/build-aux/ltmain.in?id=5627a7f498e07a40b970c3a5ab5e74a5053e956f#n3243
>
> This occurs when attempting to build universal i386/x86_64 for OS X 10.6 through 10.10, so it doesn't seem to be confined to a particular OS verison.
>
> I've attached verbose build logs (with silent rules disabled); they're also accessible online here: https://gist.github.com/9a4212e9f453dfcc813a

Thanks for the detailed report.  Now fixed in master, so the fix will be in upcoming 2.4.4 (in about a week, depending how quickly the trickle of bug reports against 2.4.3 slow down noticeably).

Patch attached incase you want to upload a patched 2.4.3 to homebrew in the interim.

Cheers,
--
Gary V. Vaughan (gary AT gnu DOT org)