Allow geocentric distance computations to return radians.

[simgear.git] / simgear / math / interpolater.cxx

diff --git a/simgear/math/interpolater.cxx b/simgear/math/interpolater.cxx
index 6502ba5a2f6bd8caaab8613a89442c7f0ce1acde..1bbbadc801d2a427ccd91cb8ac66cb3ef18d7f6e 100644 (file)
--- a/simgear/math/interpolater.cxx
+++ b/simgear/math/interpolater.cxx
@@ -22,6 +22,9 @@
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
 
 #include <simgear/compiler.h>
 
@@ -33,7 +36,9 @@
 
 #include "interpolater.hxx"
 
-SG_USING_STD(string);
+#include <simgear/math/SGMath.hxx>
+
+using std::string;
 
 // Constructor -- starts with an empty table.
 SGInterpTable::SGInterpTable()