Force linking of src/osx/core/sockosx.cpp.

Without this the file was omitted by linker entirely in the static build and
the correct socket manager wasn't used for the GUI applications (see #11030).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/socket.cpp

@@ -2079,4 +2079,9 @@ wxFORCE_LINK_MODULE( socketiohandler )
     wxFORCE_LINK_MODULE( mswsocket )
 #endif
 
+// and for OSXManagerSetter in the OS X one
+#ifdef __WXMAC__
+    wxFORCE_LINK_MODULE( osxsocket )
+#endif
+
 #endif // wxUSE_SOCKETS

src/osx/core/sockosx.cpp

@@ -16,6 +16,7 @@
 #include "wx/private/socket.h"
 #include "wx/unix/private/sockunix.h"
 #include "wx/apptrait.h"
+#include "wx/link.h"
 
 #include "wx/osx/core/cfstring.h"           // for wxMacWakeUp() only
 
@@ -285,4 +286,7 @@ static struct OSXManagerSetter
     }
 } gs_OSXManagerSetter;
 
+// see the relative linker macro in socket.cpp
+wxFORCE_LINK_THIS_MODULE( osxsocket );
+
 #endif // wxUSE_SOCKETS