X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fmath%2Fsg_types.hxx;h=f413c26b58359eb66f13f00c6773132562e2bffd;hb=f19e83dcf10d5fced3d799c884a4654d7ada6548;hp=a1107f11d4b9e459996b9923b9c6d50a600bdf5a;hpb=30529ccdf5ccd880dc68d9f83953584ba50eddfc;p=simgear.git

diff --git a/simgear/math/sg_types.hxx b/simgear/math/sg_types.hxx
index a1107f11..f413c26b 100644
--- a/simgear/math/sg_types.hxx
+++ b/simgear/math/sg_types.hxx
@@ -35,13 +35,13 @@
 
 #include <simgear/compiler.h>
 
-#include STL_STRING
+#include <string>
 #include <vector>
 
-#include <simgear/math/point3d.hxx>
+class Point3D;
 
-SG_USING_STD(vector);
-SG_USING_STD(string);
+using std::vector;
+using std::string;
 
 /** STL vector list of ints */
 typedef vector < int > int_list;