From: Kefu Chai <kchai@redhat.com>
Date: Tue, 5 Dec 2017 14:59:48 +0000 (+0800)
Subject: cmake: bail out if GCC version is less than 5.1
X-Git-Tag: v13.0.2~854^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F19344%2Fhead;p=ceph.git

cmake: bail out if GCC version is less than 5.1

Signed-off-by: Kefu Chai <kchai@redhat.com>
---

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c75a845fd876..c835525f9173 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -173,7 +173,9 @@ if(CMAKE_COMPILER_IS_GNUCXX AND
   # use old gcc with new libstdc++, but it covers the most cases.
   #
   # libstdc++ 4.9 has O(n) list::size(), and its regex is buggy
-  message(WARNING "performance regression is expected due to an O(n) implementation of 'std::list::size()' in libstdc++ older than 5.1.0")
+  message(SEND_ERROR "performance regression is expected due to an O(n) "
+    "implementation of 'std::list::size()' in libstdc++ older than 5.1.0, "
+    "Please use GCC 5.1 and up.")
 endif()
 
 ## Handle diagnostics color if compiler supports them.