diff --git a/dep/g3dlite/include/G3D/System.h b/dep/g3dlite/include/G3D/System.h
index 1c0cf99..f160774 100644
--- a/dep/g3dlite/include/G3D/System.h
+++ b/dep/g3dlite/include/G3D/System.h
@@ -19,6 +19,9 @@
 #include "G3D/G3DGameUnits.h"
 #include "G3D/BinaryFormat.h"
 #include <string>
+#ifdef G3D_LINUX
+#   include <sys/socket.h>
+#endif
 
 #ifdef G3D_OSX
 #   include <CoreServices/CoreServices.h>
diff --git a/dep/g3dlite/include/G3D/platform.h b/dep/g3dlite/include/G3D/platform.h
index 11093f4..614c0ed 100644
--- a/dep/g3dlite/include/G3D/platform.h
+++ b/dep/g3dlite/include/G3D/platform.h
@@ -56,6 +56,8 @@
     #define G3D_LINUX
 #elif defined(__linux__)
     #define G3D_LINUX
+#elif defined(__CYGWIN__)
+    #define G3D_LINUX
 #elif defined(__APPLE__)
     #define G3D_LINUX
 
diff --git a/dep/g3dlite/source/BinaryOutput.cpp b/dep/g3dlite/source/BinaryOutput.cpp
index 054211d..81fa982 100644
--- a/dep/g3dlite/source/BinaryOutput.cpp
+++ b/dep/g3dlite/source/BinaryOutput.cpp
@@ -22,6 +22,10 @@
 #    include <errno.h>
 #endif
 
+#ifdef __CYGWIN__
+#    include <errno.h>
+#endif
+
 // Largest memory buffer that the system will use for writing to
 // disk.  After this (or if the system runs out of memory)
 // chunks of the file will be dumped to disk.
diff --git a/dep/g3dlite/source/FileSystem.cpp b/dep/g3dlite/source/FileSystem.cpp
index 2cf890a..76a3611 100644
--- a/dep/g3dlite/source/FileSystem.cpp
+++ b/dep/g3dlite/source/FileSystem.cpp
@@ -35,6 +35,10 @@
 #   define _stat stat
 #endif
 
+#ifdef __CYGWIN__
+#define stat64 stat
+#endif
+
 namespace G3D {
 
 static FileSystem* common = NULL;
diff --git a/dep/g3dlite/source/System.cpp b/dep/g3dlite/source/System.cpp
index 809f05c..f6b0e03 100644
--- a/dep/g3dlite/source/System.cpp
+++ b/dep/g3dlite/source/System.cpp
@@ -888,7 +888,11 @@ void System::initTime() {
         
         if (localTimeVals) {
             // tm_gmtoff is already corrected for daylight savings.
+            #ifdef __CYGWIN__
+            local = local + _timezone;
+            #else
             local = local + localTimeVals->tm_gmtoff;
+            #endif
         }
         
         m_realWorldGetTickTime0 = local;