[PATCH 01/10] ntdll: Add stub for RtlLCIDToCultureName.

[Mark Harmstone]

This is a series of patches to support MUI, Microsoft's resource
direction feature introduced with Vista. I'm not sure whether this
should be staging or not...

With these patches, modern versions of Notepad will work, at least up to
1909 or so (which requires some stuff to do with shcore). You will need
to have en-US\notepad.exe.mui placed relative to the main EXE.

See https://bugs.winehq.org/show_bug.cgi?id=43670 - I couldn't actually
get Paint to work as it fails with some (unrelated?) Ribbon stuff, but
YMMV.

Signed-off-by: Mark Harmstone 
---
 dlls/ntdll/Makefile.in |  1 +
 dlls/ntdll/mui.c       | 38 ++++++++++++++++++++++++++++++++++++++
 dlls/ntdll/ntdll.spec  |  1 +
 3 files changed, 40 insertions(+)
 create mode 100644 dlls/ntdll/mui.c

diff --git a/dlls/ntdll/Makefile.in b/dlls/ntdll/Makefile.in
index 179d00b29ef..0e7a8bf3b96 100644
--- a/dlls/ntdll/Makefile.in
+++ b/dlls/ntdll/Makefile.in
@@ -22,6 +22,7 @@ C_SRCS = \
    loader.c \
    locale.c \
    misc.c \
+	mui.c \
    nt.c \
    path.c \
    printf.c \
diff --git a/dlls/ntdll/mui.c b/dlls/ntdll/mui.c
new file mode 100644
index 00000000000..4a9af642f47
--- /dev/null
+++ b/dlls/ntdll/mui.c
@@ -0,0 +1,38 @@
+/*
+ * MUI functions
+ *
+ * Copyright 2021 Mark Harmstone
+ *
+ * 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 "winternl.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(mui);
+
+/***********************************************************************
+ *           RtlLCIDToCultureName (NTDLL.@)
+ *
+ * Return the text name of a numeric language ID.
+ */
+BOOLEAN WINAPI RtlLCIDToCultureName( LCID lcid, PUNICODE_STRING string )
+{
+    FIXME("(%04x, %p)\n", lcid, string);
+
+    return FALSE;
+}
diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index c8622ba21f4..d27aaf1da58 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -827,6 +827,7 @@
 @ stdcall -arch=win32 -ret64 RtlLargeIntegerShiftRight(int64 long)
 @ stdcall -arch=win32 -ret64 RtlLargeIntegerSubtract(int64 int64)
 @ stdcall RtlLargeIntegerToChar(ptr long long ptr)
+@ stdcall RtlLCIDToCultureName(long ptr)
 @ stdcall RtlLeaveCriticalSection(ptr)
 @ stdcall RtlLengthRequiredSid(long)
 @ stdcall RtlLengthSecurityDescriptor(ptr)