From 98304076b08089452bf14b1813570df9915dc114 Mon Sep 17 00:00:00 2001
From: YexuanXiao <bizwen@nykz.org>
Date: Sun, 22 Dec 2024 04:42:59 +0800
Subject: [PATCH] Move macro FMT_MSVC_STL_UPDATE to ostream.h.

---
 include/fmt/base.h    | 7 -------
 include/fmt/ostream.h | 8 ++++++++
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/include/fmt/base.h b/include/fmt/base.h
index b24f33a65b68..e7fdef43eef9 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -63,13 +63,6 @@
 #else
 #  define FMT_LIBCPP_VERSION 0
 #endif
-#ifdef _MSVC_STL_UPDATE
-#  define FMT_MSVC_STL_UPDATE _MSVC_STL_UPDATE
-#elif defined(_MSC_VER) && _MSC_VER < 1912  // VS 15.5
-#  define FMT_MSVC_STL_UPDATE _MSVC_LANG
-#else
-#  define FMT_MSVC_STL_UPDATE 0
-#endif
 
 // Detect __has_*.
 #ifdef __has_feature
diff --git a/include/fmt/ostream.h b/include/fmt/ostream.h
index 2ae944ff6412..5d893c92164c 100644
--- a/include/fmt/ostream.h
+++ b/include/fmt/ostream.h
@@ -22,6 +22,14 @@
 
 #include "chrono.h"  // formatbuf
 
+#ifdef _MSVC_STL_UPDATE
+#  define FMT_MSVC_STL_UPDATE _MSVC_STL_UPDATE
+#elif defined(_MSC_VER) && _MSC_VER < 1912  // VS 15.5
+#  define FMT_MSVC_STL_UPDATE _MSVC_LANG
+#else
+#  define FMT_MSVC_STL_UPDATE 0
+#endif
+
 FMT_BEGIN_NAMESPACE
 namespace detail {