On 07/04/2020 01:41, cygwin-no-re...@cygwin.com wrote:
WARNING: package 'libao' version '1.2.0-1' has empty install tar file, but it's not in the _obsolete category
It looks like this package is empty on x86, but contains documentation on x86_64.
I guess this is perhaps because some tool used to build documentation is present for the x86_64 build, but not the x86 build (in which case, you might want to consider adding that tool to DEPEND so you get told about that a build time?)
See https://cygwin.com/packages/summary/libao.html