diff --git a/CMakeLists.txt b/CMakeLists.txt
index b907396..059631e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,11 +5,11 @@ set (PROJECT_TYPE "CXX")
 set (PROJECT_NAME "MPW Shell")
 
 
-set(CMAKE_CXX_FLAGS "-std=c++14 -g -Wall")
+set(CMAKE_CXX_FLAGS "-std=c++14 -g -Wall -Wno-unused-variable")
 
 if(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
 	#set(CMAKE_CXX_COMPILER "clang++")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-const-variable -Wno-unused-variable -Wno-multichar -Wno-c++11-extensions")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-const-variable -Wno-multichar")
 endif()
 
 
diff --git a/mpw-shell-execute.cpp b/mpw-shell-execute.cpp
index d216673..8d8ac9d 100644
--- a/mpw-shell-execute.cpp
+++ b/mpw-shell-execute.cpp
@@ -5,6 +5,7 @@
 #include <cctype>
 #include <cassert>
 #include <cerrno>
+#include <cstring>
 
 #include <algorithm>
 #include <functional>