diff --git a/build.sh b/build.sh
index f0bdc5d78dbbfd7d9708bb91b7164567f6c0829b..b75823f45f9bf5fbb3bfe1a2b7205b1d35fa0b2c 100755
--- a/build.sh
+++ b/build.sh
@@ -141,6 +141,10 @@ fi
 # load autbuild provided shell functions and variables
 eval "$("$AUTOBUILD" source_environment)"
 
+# dump environment variables for debugging
+env|sort
+
+
 # Install packages.
 "$AUTOBUILD" install --skip-license-check