Export Handle::Private from the library

It's needed by other libraries which implement I/O classes, particularly
mspnet.

diff --git a/source/io/handle_private.h b/source/io/handle_private.h
index 4fa690ab3c50a1bde134de16b69013a80e82aeba..165f818bfd282d8b7ac5d5a72e92db18882f9efb 100644 (file)
--- a/source/io/handle_private.h
+++ b/source/io/handle_private.h
@@ -1,13 +1,14 @@
 #ifndef MSP_IO_HANDLE_PRIVATE_H_
 #define MSP_IO_HANDLE_PRIVATE_H_
 
+#include <msp/core/mspcore_api.h>
 #include "handle.h"
 #include "handle_platform.h"
 
 namespace Msp {
 namespace IO {
 
-struct Handle::Private
+struct MSPCORE_API Handle::Private
 {
        PlatformHandle handle;