From d5daba478954072e23031c47aaa32682dd63f9ea Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Wed, 3 Jun 2026 13:27:24 +0300
Subject: [PATCH] [NDK] Add missing extern "C"

---
 sdk/include/ndk/iotypes.h  | 8 ++++++++
 sdk/include/ndk/kdfuncs.h  | 9 +++++++++
 sdk/include/ndk/lpctypes.h | 8 ++++++++
 sdk/include/ndk/mmfuncs.h  | 8 ++++++++
 4 files changed, 33 insertions(+)

diff --git a/sdk/include/ndk/iotypes.h b/sdk/include/ndk/iotypes.h
index 5610099f884..37707afce9a 100644
--- a/sdk/include/ndk/iotypes.h
+++ b/sdk/include/ndk/iotypes.h
@@ -25,6 +25,10 @@ Author:
 #include <ifssupp.h>
 #include <potypes.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 //
 // I/O Completion Access Rights
 //
@@ -1274,4 +1278,8 @@ typedef struct _REPARSE_DATA_BUFFER {
 
 #endif // NTOS_MODE_USER
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/sdk/include/ndk/kdfuncs.h b/sdk/include/ndk/kdfuncs.h
index 0ab68c26bcd..1f2278d477d 100644
--- a/sdk/include/ndk/kdfuncs.h
+++ b/sdk/include/ndk/kdfuncs.h
@@ -25,6 +25,10 @@ Author:
 #include <umtypes.h>
 #include <kdtypes.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef NTOS_MODE_USER
 
 //
@@ -110,4 +114,9 @@ ZwSystemDebugControl(
     _In_ ULONG OutputBufferLength,
     _Out_opt_ PULONG ReturnLength
 );
+
+#ifdef __cplusplus
+} // extern "C"
 #endif
+
+#endif // _KDFUNCS_H
diff --git a/sdk/include/ndk/lpctypes.h b/sdk/include/ndk/lpctypes.h
index 23d2f48005f..a8e67a59bdd 100644
--- a/sdk/include/ndk/lpctypes.h
+++ b/sdk/include/ndk/lpctypes.h
@@ -25,6 +25,10 @@ Author:
 #include <umtypes.h>
 //#include <pstypes.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef NTOS_MODE_USER
 
 //
@@ -293,4 +297,8 @@ typedef struct _CLIENT_DIED_MSG
     sizeof(PORT_MESSAGE) - \
     sizeof(LPCP_CONNECTION_MESSAGE))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // _LPCTYPES_H
diff --git a/sdk/include/ndk/mmfuncs.h b/sdk/include/ndk/mmfuncs.h
index cd4f733f15e..9ab3fdde6cf 100644
--- a/sdk/include/ndk/mmfuncs.h
+++ b/sdk/include/ndk/mmfuncs.h
@@ -25,6 +25,10 @@ Author:
 #include <umtypes.h>
 #include <mmtypes.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef NTOS_MODE_USER
 
 //
@@ -495,4 +499,8 @@ ZwWriteVirtualMemory(
     _Out_opt_ PSIZE_T NumberOfBytesWritten
 );
 
+#ifdef __cplusplus
+} // extern "C"
 #endif
+
+#endif // _MMFUNCS_H