From 359c31445a432693e913f1bac31f05df82b0ddbc Mon Sep 17 00:00:00 2001
From: owent <admin@owent.net>
Date: Wed, 9 Apr 2025 20:22:42 +0800
Subject: [PATCH 1/3] Fixes glibc++ 5 checking

---
 api/include/opentelemetry/config.h | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/api/include/opentelemetry/config.h b/api/include/opentelemetry/config.h
index 21a2947e28..c41f2e7ef8 100644
--- a/api/include/opentelemetry/config.h
+++ b/api/include/opentelemetry/config.h
@@ -3,12 +3,9 @@
 
 #pragma once
 
-#ifndef __has_include
-#  define OPENTELEMETRY_HAS_INCLUDE(x) 0
-#else
-#  define OPENTELEMETRY_HAS_INCLUDE(x) __has_include(x)
-#endif
+#include <type_traits>  // IWYU pragma: keep
 
-#if !defined(__GLIBCXX__) || OPENTELEMETRY_HAS_INCLUDE(<codecvt>)  // >= libstdc++-5
+#if !defined(__GLIBCXX__) || (defined(_GLIBCXX_RELEASE) && _GLIBCXX_RELEASE >= 7) || \
+    (defined(__GLIBCXX__) && __GLIBCXX__ >= 20150422)  // >= libstdc++-5
 #  define OPENTELEMETRY_TRIVIALITY_TYPE_TRAITS
 #endif

From 2e07c15ccb5f888fcdb42a1a60e22551e46c708c Mon Sep 17 00:00:00 2001
From: owent <admin@owent.net>
Date: Sun, 27 Apr 2025 17:29:17 +0800
Subject: [PATCH 2/3] Always checking `OPENTELEMETRY_TRIVIALITY_TYPE_TRAITS`
 when `OPENTELEMETRY_STL_VERSION` is defined

---
 api/include/opentelemetry/config.h            | 11 -----------
 api/include/opentelemetry/nostd/type_traits.h |  9 +++++++--
 sdk/include/opentelemetry/sdk_config.h        |  1 -
 3 files changed, 7 insertions(+), 14 deletions(-)
 delete mode 100644 api/include/opentelemetry/config.h

diff --git a/api/include/opentelemetry/config.h b/api/include/opentelemetry/config.h
deleted file mode 100644
index c41f2e7ef8..0000000000
--- a/api/include/opentelemetry/config.h
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-#pragma once
-
-#include <type_traits>  // IWYU pragma: keep
-
-#if !defined(__GLIBCXX__) || (defined(_GLIBCXX_RELEASE) && _GLIBCXX_RELEASE >= 7) || \
-    (defined(__GLIBCXX__) && __GLIBCXX__ >= 20150422)  // >= libstdc++-5
-#  define OPENTELEMETRY_TRIVIALITY_TYPE_TRAITS
-#endif
diff --git a/api/include/opentelemetry/nostd/type_traits.h b/api/include/opentelemetry/nostd/type_traits.h
index 3a64b5db1a..a797c1ea07 100644
--- a/api/include/opentelemetry/nostd/type_traits.h
+++ b/api/include/opentelemetry/nostd/type_traits.h
@@ -10,15 +10,20 @@
 #  endif
 #endif
 
+#include <type_traits>
+
 #if !defined(OPENTELEMETRY_HAVE_STD_TYPE_TRAITS)
 #  include <array>
-#  include <type_traits>
 
-#  include "opentelemetry/config.h"
 #  include "opentelemetry/nostd/detail/void.h"  // IWYU pragma: export
 #  include "opentelemetry/version.h"
 #endif
 
+#if !defined(__GLIBCXX__) || (defined(_GLIBCXX_RELEASE) && _GLIBCXX_RELEASE >= 7) || \
+    (defined(__GLIBCXX__) && __GLIBCXX__ >= 20150422)  // >= libstdc++-5
+#  define OPENTELEMETRY_TRIVIALITY_TYPE_TRAITS
+#endif
+
 OPENTELEMETRY_BEGIN_NAMESPACE
 namespace nostd
 {
diff --git a/sdk/include/opentelemetry/sdk_config.h b/sdk/include/opentelemetry/sdk_config.h
index 280ccaa993..afe78f1d80 100644
--- a/sdk/include/opentelemetry/sdk_config.h
+++ b/sdk/include/opentelemetry/sdk_config.h
@@ -3,5 +3,4 @@
 
 #pragma once
 
-#include "opentelemetry/config.h"
 #include "opentelemetry/sdk/common/global_log_handler.h"

From c510a4ab5f38e2a35b0ceda337d9dc33f883d39b Mon Sep 17 00:00:00 2001
From: owent <admin@owent.net>
Date: Tue, 29 Apr 2025 11:02:20 +0800
Subject: [PATCH 3/3] Restore confg.h but left a warning

---
 api/include/opentelemetry/config.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 api/include/opentelemetry/config.h

diff --git a/api/include/opentelemetry/config.h b/api/include/opentelemetry/config.h
new file mode 100644
index 0000000000..cb52f3b5dc
--- /dev/null
+++ b/api/include/opentelemetry/config.h
@@ -0,0 +1,19 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <type_traits>  // IWYU pragma: keep
+
+#if defined(OPENTELEMETRY_ABI_VERSION_NO) && OPENTELEMETRY_ABI_VERSION_NO >= 2
+#  error \
+      "opentelemetry/config.h is removed in ABI version 2 and later. Please use opentelemetry/version.h instead."
+#else
+#  if defined(__clang__) || defined(__GNUC__)
+#    pragma GCC warning \
+        "opentelemetry/config.h is deprecated. Please use opentelemetry/version.h instead."
+#  elif defined(_MSC_VER)
+#    pragma message( \
+        "[WARNING]: opentelemetry/config.h is deprecated. Please use opentelemetry/version.h instead.")
+#  endif
+#endif