From fc7def5bfddb5640bea20af13b267fd78edd45e2 Mon Sep 17 00:00:00 2001
From: Tindy X <49061470+tindy2013@users.noreply.github.com>
Date: Sat, 28 Dec 2019 15:00:15 +0800
Subject: [PATCH] Add option for enabling malloc_trim

---
 CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f68ed31..2859e8c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,11 +7,15 @@ ENDIF()
 SET(CMAKE_CXX_STANDARD 17)
 ADD_DEFINITIONS(-Wall -Wextra -Wno-unused-parameter -Wno-unused-result)
 
-OPTION(USING_STD_REGEX "Use std::regex from C++ library instead of PCRECPP" OFF)
+OPTION(USING_STD_REGEX "Use std::regex from C++ library instead of PCRECPP." OFF)
+OPTION(USING_MALLOC_TRIM "Call malloc_trim after processing request to lower memory usage (Your system must support malloc_trim)." OFF)
 
 IF(MACOS)
 	ADD_DEFINITIONS(-D_MACOS)
 ENDIF()
+IF(USING_MALLOC_TRIM)
+	ADD_DEFINITIONS(-DMALLOC_TRIM)
+ENDIF()
 
 ADD_EXECUTABLE(subconverter 
 	src/logger.cpp