From c81f143411c0e1395f474047b63d5740f5ef3476 Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Mon, 6 Aug 2018 17:58:10 +0800
Subject: [PATCH] cmake: add ALLOCATOR option

ALLOCATOR is in fact an option..

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index af27c909c5f5f..3709830d13272 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -314,6 +314,10 @@ if(WITH_LZ4)
 endif(WITH_LZ4)
 
 #if allocator is set on command line make sure it matches below strings
+set(ALLOCATOR "" CACHE STRING
+  "specify memory allocator to use. currently tcmalloc, tcmalloc_minimal, \
+jemalloc, and libc is supported. if not specified, will try to find tcmalloc, \
+and then jemalloc. If neither of then is found. use the one in libc.")
 if(ALLOCATOR)
   if(${ALLOCATOR} MATCHES "tcmalloc(_minimal)?")
     if(GPERFTOOLS_USE_STATIC_LIBS)
-- 
2.39.5