gc.realloc: If old block attributes are preserved, communicate them from reallocNoSync to realloc.
Enable per-thread errno on Solaris
Remove unused Thread.sm_clen variable.

It stored the size of the global context list, but that isn't used
explicitly anywhere.
Fix 12977 - lf64 definitions aren't correct on Solaris
Fix 12978 - struct sigaction is too small on 32-bit Solaris
Fix 13037 - SIGRTMIN and SIGRTMAX aren't correctly defined on Solaris
Merge pull request #859 from jasonbking/lf64

Multiple Solaris fixes
Added comment for -D_REENTRANT
Merge pull request #862 from klickverbot/remove-sm_clen

Remove unused Thread.sm_clen variable.
remove thread.di header

- Use extern(D) bindings for the core.thread<->rt.tlsgc
  interface to avoid importing a rt module in core.
Merge pull request #860 from jasonbking/errno

Enable per-thread errno on Solaris
fix Issue 13034 - [Reg] core.stdc.stdio - deprecation warning with dmd -inline
Merge pull request #866 from WalterBright/fix13034

fix Issue 13034 - [Reg] core.stdc.stdio - deprecation warning with ...
Merge pull request #844 from Safety0ff/reallocbits

gc.realloc: Improve case where old block attributes are preserved
Merge pull request #865 from MartinNowak/tlsgc_externD

remove thread.di header
Fix Issue 13057 - posix getopt variables in core/sys/posix/unistd.d should be marked __gshared
Mark threadasm.S as not requiring an executable stack.
Merge pull request #868 from klickverbot/threadasm-exec-stack

Mark threadasm.S as not requiring an executable stack.
Fix declaration of lstrcmp/lstrcmpi in windows.d

According to MSDN (http://msdn.microsoft.com/en-us/library/windows/desktop/ms647488(v=vs.85).aspx), lstrcmp and lstrcmpi
follow the usual pattern of being macros expanding to either the ANSI (lstrcmpA) or Unicode (lstrcmpW).
The current declaration in windows.d misses the postfix A/W. This causes compile errors with ldc because the
mangled names are identical.
Merge pull request #874 from redstar/lstrcmp

Fix declaration of lstrcmp/lstrcmpi in windows.d
Merge pull request #869 from klickverbot/getopt-tls

Fix Issue 13057 - posix getopt variables in core/sys/posix/unistd.d should be marked __gshared
fix Issue 13078 - [dmd 2.066-b2] AA rehash failed with shared