From c41e230589199fc9a7976fe9a1e53a6d083b2152 Mon Sep 17 00:00:00 2001
From: Simon Liu <331435+monadbobo@users.noreply.github.com>
Date: Wed, 16 Sep 2020 22:14:30 +0800
Subject: [PATCH] Modify the minimum version of the Clang compiler that
 Clickhouse can support (8 -> 9), The main reason is that in Clang 8.0
 "#pragma clang attribute" cannot be used in the namesapce scope.

---
 cmake/tools.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake/tools.cmake b/cmake/tools.cmake
index a6ea573a59d..723a14c6584 100644
--- a/cmake/tools.cmake
+++ b/cmake/tools.cmake
@@ -28,7 +28,7 @@ elseif (COMPILER_CLANG)
             set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fchar8_t")
         endif ()
     else ()
-        set (CLANG_MINIMUM_VERSION 8)
+        set (CLANG_MINIMUM_VERSION 9)
         if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${CLANG_MINIMUM_VERSION})
             message (FATAL_ERROR "Clang version must be at least ${CLANG_MINIMUM_VERSION}.")
         endif ()