From bf62c27b451b1cb037c63ac7a1bf3259f1344c05 Mon Sep 17 00:00:00 2001
From: Marat Abrarov <abrarov@gmail.com>
Date: Thu, 19 Mar 2026 23:22:57 +0300
Subject: [PATCH] metric: reduced windows.h include to avoid redeclaration
 conflicts

Signed-off-by: Marat Abrarov <abrarov@gmail.com>
---
 include/cmetrics/cmt_compat.h | 6 ++++++
 src/cmt_atomic_msvc.c         | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/include/cmetrics/cmt_compat.h b/include/cmetrics/cmt_compat.h
index 004c0aa8..9fc90a38 100644
--- a/include/cmetrics/cmt_compat.h
+++ b/include/cmetrics/cmt_compat.h
@@ -22,7 +22,13 @@
 
 #include <time.h>
 #ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+#else
+#include <windows.h>
+#endif
 #endif
 
 static inline struct tm *cmt_platform_gmtime_r(const time_t *timep, struct tm *result)
diff --git a/src/cmt_atomic_msvc.c b/src/cmt_atomic_msvc.c
index 3fd66dbf..3da37a75 100644
--- a/src/cmt_atomic_msvc.c
+++ b/src/cmt_atomic_msvc.c
@@ -18,7 +18,13 @@
  */
 
 #include <cmetrics/cmt_atomic.h>
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+#else
+#include <windows.h>
+#endif
 
 /* This allows cmt_atomic_initialize to be automatically called 
  * as soon as the program starts if enabled.