#313 libsox.dylib generated incorrectly on OS X 10.10 and later

[Ryan Carsten Schmidt]

On recent versions of macOS, the sox 14.4.2 build system generates libsox.dylib incorrectly (for the flat namespace instead of the two-level namespace) because its configure script was built with an old version of libtool that misidentifies OS X 10.10 and later as Mac OS X 10.1. The fix is to autoreconf using libtool 2.4.3 or later and publish a new release.

[Mans Rullgard]

Next release will be fixed.