update CMake file so that it will generate proper _WIN32_WINNT and WINVER definitions...

[freeglut] / src / mswin / fg_spaceball_mswin.c

diff --git a/src/mswin/fg_spaceball_mswin.c b/src/mswin/fg_spaceball_mswin.c
index 277b648..84d848d 100644 (file)
--- a/src/mswin/fg_spaceball_mswin.c
+++ b/src/mswin/fg_spaceball_mswin.c
@@ -30,12 +30,14 @@
  */
 
 /*
- * Modified by Jinrong Xie (stonexjr@gmail.com) 12/24/2014
+ * Modified by Jinrong Xie <stonexjr at gmail.com> 12/24/2014
  * for Space Navigator support on Windows.
  * This code is enhanced by at least supporting 3Dconnexion's 
  * six degree of freedom navigator.
  */
 
+#if(_WIN32_WINNT >= 0x0501)
+
 #include <GL/freeglut.h>
 #include <stdlib.h>
 #include "../fg_internal.h"
@@ -190,3 +192,5 @@ void fgSpaceballHandleWinEvent(HWND hwnd, WPARAM wParam, LPARAM lParam)
                }
        }
 }
+
+#endif
\ No newline at end of file