Add a warning before we run a ton of sed's

diff --git a/genbindings.sh b/genbindings.sh
index 155269b39f06f91afe8e38f2b47be2fb07f7ccf6..5586569cec5b5069b94a401076263273de05c303 100755 (executable)
--- a/genbindings.sh
+++ b/genbindings.sh
@@ -229,6 +229,7 @@ else
 fi
 
 # Build C++ class methods which call trait methods
+echo "Updating C++ header, this may take some time, especially on macOS"
 set +x # Echoing every command is very verbose here
 OLD_IFS="$IFS"
 export IFS=''