Comment 1 for bug 1630349

I found a reference to a similar issue in openal-soft_1:1.16.0-3 from earlier this year.

http://gcc.1065356.n8.nabble.com/distro-test-rebuild-using-GCC-6-td1224722.html#a1226791

It seems the arm headers have changed how configure should detect neon support, and now the build is falsely detecting neon support, even though it's not passing the required -mfpu=neon flag. Given that neon support was not enabled before, I believe the best choice is to disable it via a configure flag.