7d63f8b6df
When using Clang -O is equivalent to -O2, change it -O2 to make it consistent with other platforms. Reference: https://clang.llvm.org/docs/ClangCommandLineReference.html#optimization-level Submitted by: Daniel Engberg (daniel.engberg.lists@pyret.net) Reviewed by: emaste Differential Revision: https://reviews.freebsd.org/D21021