From 3148e4877cebf60d0bfa80bc2b18c6658339c6be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Sat, 9 May 2026 23:37:16 +0200
Subject: [PATCH] Fix BOOST_CONTAINER_UNROLL for Clang

---
 include/boost/container/detail/workaround.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/boost/container/detail/workaround.hpp b/include/boost/container/detail/workaround.hpp
index e67d6a3..ef23a04 100644
--- a/include/boost/container/detail/workaround.hpp
+++ b/include/boost/container/detail/workaround.hpp
@@ -249,8 +249,12 @@ namespace boost {
     #define BOOST_CONTAINER_NOVTABLE
 #endif
 
-#if defined(BOOST_CLANG) && BOOST_CLANG >= 30600 || \
-    defined(BOOST_GCC) && BOOST_GCC >= 150000
+#if (defined(BOOST_CLANG) && BOOST_CLANG_VERSION >= 30600)
+
+  #define BOOST_CONTAINER_UNROLL_PRAGMA(x) _Pragma(#x)
+  #define BOOST_CONTAINER_UNROLL(n) BOOST_CONTAINER_UNROLL_PRAGMA(unroll n)
+
+#elif (defined(BOOST_GCC) && BOOST_GCC_VERSION >= 150000)
   // GCC < 15 emits an unsuppressible "ignoring loop annotation" warning
   // when the optimizer decides it cannot unroll a loop (complex iterators,
   // unknown trip count, etc.). This was fixed in GCC 15.