From a18dda21efaa5fa5bfdbe6d7d7f4c5f08b7f845c Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Sat, 19 Oct 2019 17:04:36 +0100
Subject: [PATCH] Fix a GCC warning: catching exception by value

---
 src/Environment/metarproperties.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Environment/metarproperties.cxx b/src/Environment/metarproperties.cxx
index 1ebdd33b0..67edb63ce 100644
--- a/src/Environment/metarproperties.cxx
+++ b/src/Environment/metarproperties.cxx
@@ -215,7 +215,7 @@ void MetarProperties::set_metar( const char * metarString )
     try {
         m = new FGMetar( metarString );
     }
-    catch( sg_io_exception ) {
+    catch( sg_io_exception& ) {
         SG_LOG( SG_ENVIRONMENT, SG_WARN, "Can't parse metar: " << metarString );
         _metarValidNode->setBoolValue(false);
         return;