:SB-THREAD
Native threads. Enabled by default on x86[-64] Linux only, also
- available on x86[-64] Max OS X, x86[-64] FreeBSD, and x86
- Solaris.
+ available on x86[-64] Max OS X, x86[-64] FreeBSD, x86 Solaris,
+ and PPC Linux.
:SB-UNICODE
Unicode support. Enabled by default. Disabling this feature