Changelog for libcxx-devel-3.8.0-3.el7.x86_64.rpm :
Thu May 19 14:00:00 2016 Tom Callaway - 3.8.0-3
- use gcc on el7, fedora < 24. use clang on el6 and f24+
MAGIC.
- bootstrap on

Tue May 3 14:00:00 2016 Tom Callaway - 3.8.0-2
- bootstrap off

Tue May 3 14:00:00 2016 Tom Callaway - 3.8.0-1
- initial package
- bootstrap on