Clean-up some SGMath dependencies.

[flightgear.git] / src / Instrumentation / KLN89 / kln89_page_dir.cxx

diff --git a/src/Instrumentation/KLN89/kln89_page_dir.cxx b/src/Instrumentation/KLN89/kln89_page_dir.cxx
index 9b04ffb9b87ae1f25a74d6094452a96be28a2c20..db139f519326e1ef4d07b311d5fef3a1e85d59cf 100644 (file)
--- a/src/Instrumentation/KLN89/kln89_page_dir.cxx
+++ b/src/Instrumentation/KLN89/kln89_page_dir.cxx
@@ -28,6 +28,8 @@
 #include "kln89_page_dir.hxx"
 #include <Main/fg_props.hxx>
 
+using std::string;
+
 KLN89DirPage::KLN89DirPage(KLN89* parent)
 : KLN89Page(parent) {
        _nSubPages = 1;