msdrm: Add stub DRMRegisterContent function.

dlls/msdrm/Makefile.in

 MODULE    = msdrm.dll
 
-EXTRADLLFLAGS = -Wb,--prefer-native
+EXTRADLLFLAGS = -mno-cygwin -Wb,--prefer-native
+
+C_SRCS = \
+	main.c

dlls/msdrm/main.c

+/*
+ * Windows Rights Management Client
+ *
+ * Copyright 2021 Vijay Kiran Kamuju
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(msdrm);
+
+HRESULT WINAPI DRMRegisterContent(BOOL value)
+{
+     FIXME("(%u): stub\n", value);
+
+     return S_OK;
+}

dlls/msdrm/msdrm.spec

@@ -70,7 +70,7 @@
 @ stub DRMIsWindowProtected
 @ stub DRMLoadLibrary
 @ stub DRMParseUnboundLicense
-@ stub DRMRegisterContent
+@ stdcall DRMRegisterContent(long)
 @ stub DRMRegisterProtectedWindow
 @ stub DRMRegisterRevocationList
 @ stub DRMRepair