Make at least the header aliasing safe.

[simgear.git] / simgear / environment / visual_enviro.hxx

diff --git a/simgear/environment/visual_enviro.hxx b/simgear/environment/visual_enviro.hxx
index 1c901b098734cb9005cd78ac70264463c75b2934..e51bd4d69540671bea5f611a2cbb83e2f4ce0524 100644 (file)
--- a/simgear/environment/visual_enviro.hxx
+++ b/simgear/environment/visual_enviro.hxx
@@ -22,6 +22,8 @@
 #ifndef _VISUAL_ENVIRO_HXX
 #define _VISUAL_ENVIRO_HXX
 
+#include <plib/sg.h>
+
 #include <simgear/compiler.h>
 #include STL_STRING
 #include <vector>