From d965a3d7857915d7a601f2b361ab5d25bf5d16ca Mon Sep 17 00:00:00 2001
From: Alex Shinn <ashinn@users.noreply.github.com>
Date: Sun, 15 Apr 2012 15:55:24 +0900
Subject: [PATCH] including unistd.h for green threads

---
 include/chibi/sexp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/chibi/sexp.h b/include/chibi/sexp.h
index b05b1ee6..135eedee 100755
--- a/include/chibi/sexp.h
+++ b/include/chibi/sexp.h
@@ -27,6 +27,7 @@ extern "C" {
 #endif
 #if SEXP_USE_GREEN_THREADS || SEXP_USE_GC_FILE_DESCRIPTORS
 #include <errno.h>
+#include <unistd.h>
 #endif
 #if SEXP_USE_GREEN_THREADS
 #include <sys/time.h>