Fix Linux compile / math dependency

[flightgear.git] / src / Instrumentation / dclgps.cxx

diff --git a/src/Instrumentation/dclgps.cxx b/src/Instrumentation/dclgps.cxx
index 42157d7a1836ffcde8db0f510c4b7c97977b24eb..634d00bbe3a373820ad7990f2bd847a19bc120df 100644 (file)
--- a/src/Instrumentation/dclgps.cxx
+++ b/src/Instrumentation/dclgps.cxx
@@ -39,6 +39,7 @@
 
 #include <fstream>
 #include <iostream>
+#include <cstdlib>
 
 using namespace std;