Index: sunpinyin-2.0.3/src/lexicon/genPYT.cpp
===================================================================
--- sunpinyin-2.0.3.orig/src/lexicon/genPYT.cpp
+++ sunpinyin-2.0.3/src/lexicon/genPYT.cpp
@@ -37,6 +37,7 @@
 
 #include <locale.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "pytrie.h"
 #include "pytrie_gen.h"
Index: sunpinyin-2.0.3/src/ime-core/ic_history.cpp
===================================================================
--- sunpinyin-2.0.3.orig/src/ime-core/ic_history.cpp
+++ sunpinyin-2.0.3/src/ime-core/ic_history.cpp
@@ -45,6 +45,7 @@
 #include <cassert>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <unistd.h>
 #include <algorithm>
 #include "ic_history.h"