From: Grant Slater <grant.slater@wearefriday.com>
Date: Tue, 15 Aug 2017 15:58:35 +0000 (+0100)
Subject: cmake: Enable LZ4 if required library is available.
X-Git-Tag: v13.1.0~287^2~4
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=bb2da9302cd24d74928cd63f8cd1449e7151076a;p=ceph.git

cmake: Enable LZ4 if required library is available.

Signed-off-by: Grant Slater <grant.slater@wearefriday.com>
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8693f1ebe5a2..bc4cb19bce0c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -298,7 +298,7 @@ if(WITH_BROTLI)
   set(HAVE_BROTLI TRUE)
 endif()
 
-option(WITH_LZ4 "LZ4 compression support" OFF)
+option(WITH_LZ4 "LZ4 compression support" ON)
 if(WITH_LZ4)
   find_package(LZ4 1.7 REQUIRED)
   set(HAVE_LZ4 ${LZ4_FOUND})
diff --git a/PendingReleaseNotes b/PendingReleaseNotes
index e1e5322a6c5f..b036502d54e4 100644
--- a/PendingReleaseNotes
+++ b/PendingReleaseNotes
@@ -170,3 +170,8 @@ method. See http://docs.ceph.com/docs/luminous/mgr/restful for details.
   can only express printable strings.  If binary blobs are present,
   the 'ceph config-key dump' command will show them as something like
   ``<<< binary blob of length N >>>``.
+
+* The Ceph LZ4 compression plugin is now built by default if the required
+  version of the LZ4 library is available. LZ4 is not enabled in the official
+  Ceph releases due to some distros shipping with a very old releases of the
+  LZ4 library which does not have the required LZ4 streaming function.