`CoInitializeEx` is essential to setting the threading model to multi-threaded.
Multi-threaded COM is ideal in D where threading is safer and synchronization easier.
Previously, std.socket code assumed that MSG_NOSIGNAL existed on all platforms, which is not the case – std.c.osx.socket actually has a comment saying »Not defined in OS X, but we'll use them anyway«. This lead to Socket.send() raising SIGPIPE on OS X if the peer had already closed the connection.
With this commit, std.socket sets the SO_NOSIGPIPE socket option on systems that support it for the same effect as MSG_NOSIGNAL on Linux.
Strictly speaking, removing the NOSIGNAL SocketFlag is a breaking API change, but I do not think there is any code actually using it, as it has always been set implicitly by std.socket anyway.
* Transformed std.c.linux.* into wrappers around core.sys.posix modules where appropriate.
* Added std.c.osx as the OSX equivalent of std.c.linux.
* Added std.c.osx.socket for OSX-specific socket declarations not covered by the Posix spec.
* Altered all makefiles to zip, etc, the new std.c.osx package.
* Removed gcstats. Garbage collector statistics will be avaialable in durintime's 'memory' module.
* Removed object.d. This module is replaced by the object.d provided by druntime.
* Removed std.array. To trap an array bounds error, import 'exception' from druntime and catch ArrayBoundsException.
* Removed std.asserterror. To trap an asertion failure, import 'exception' from druntime and catch AssertException.
* Removed std.gc. To interact with the garbage collector, import 'memory' from druntime.
* Removed std.hiddenfunc. No equivalent exception is currently exposed by druntime, but if one is exposed it will be called HiddenFuncException and be declared in 'exception'.
* Removed std.moduleinit. druntime declares ModuleInfo in object.d, so it is implicitly availble without importing.
* Removed std.outofmemory. To trap an out of memory error, import 'exception' from druntime and catch OutOfMemoryException.
* Removed std.switcherr. To trap a switch error, import 'exception' from druntime and catch SwitchException.
* Removed std.synchro. This functionality will exist within druintime.
* Removed std.thread. A Thread class is available within druntime's 'thread' module. An interface comparison will be provided separately.
* Removed std.typeinfo. The classes defined in this package are for runtime use and should not be visible to the user.
The prior version of Phobos has been archived in tags/phobos-2.019 if needed.
