1 files changed, 10 insertions, 0 deletions

diff --git a/rbutil/ipodpatcher/ipodpatcher.h b/rbutil/ipodpatcher/ipodpatcher.h
index 5d2507ccd4..30a1b1e9fd 100644
--- a/rbutil/ipodpatcher/ipodpatcher.h
+++ b/rbutil/ipodpatcher/ipodpatcher.h
@@ -31,7 +31,17 @@ extern "C" {
 /* Size of buffer for disk I/O - 8MB is large enough for any version
    of the Apple firmware, but not the Nano's RSRC image. */
 #define BUFFER_SIZE 8*1024*1024
+
+#ifndef _MSC_VER
 extern unsigned char* ipod_sectorbuf;
+#else
+/* MSVC needs to use dllimport to allow using it directly from a DLL.
+ * See http://support.microsoft.com/kb/90530
+ * Building with MSVC is only when using as DLL.
+ */
+_declspec(dllimport) unsigned char* ipod_sectorbuf;
+#endif
+
 extern int ipod_verbose;
 
 #define FILETYPE_DOT_IPOD 0