X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAIModel%2Fperformancedb.cxx;h=f7c286a9a345b8aea1d73ff6d5b9160f151a89b6;hb=b4fbde72b275dc75e8ecf7b44261aba642e5da0f;hp=3f9aafa6893f704d496f68d89a9308ef263be529;hpb=219be77f1e329b03a7dcf1d697ea2fdbf7f1a81a;p=flightgear.git

diff --git a/src/AIModel/performancedb.cxx b/src/AIModel/performancedb.cxx
index 3f9aafa68..f7c286a9a 100644
--- a/src/AIModel/performancedb.cxx
+++ b/src/AIModel/performancedb.cxx
@@ -1,3 +1,4 @@
+#include <simgear/math/SGMath.hxx>
 #include <simgear/misc/sg_path.hxx>
 #include <simgear/props/props.hxx>
 #include <simgear/props/props_io.hxx>