From 6c59c83e0f628f99d340d61e405e6272d3f0907b Mon Sep 17 00:00:00 2001
From: Kim Kulling <kim.kulling@googlemail.com>
Date: Fri, 24 Nov 2017 19:48:21 +0100
Subject: [PATCH] add missing include

---
 include/assimp/IOSystem.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/assimp/IOSystem.hpp b/include/assimp/IOSystem.hpp
index 35f58e8b6..4a88c4a31 100644
--- a/include/assimp/IOSystem.hpp
+++ b/include/assimp/IOSystem.hpp
@@ -63,6 +63,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #else
 #   include <sys/stat.h>
 #   include <sys/types.h>
+#   include <unistd.h>
 #endif // _WIN32
 
 #include <vector>