diff --git a/tests/test.sh b/tests/test.sh
index 3972959..f4974d7 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -3,6 +3,10 @@
 # Ensure files are loaded relative to test.sh
 cd "$(dirname "$BASH_SOURCE")"
 
+>&2 echo "CC:  $CC"
+>&2 echo "CXX: $CXX"
+>&2 echo "FC:  $FC"
+
 # Load helpers
 source "./test_helpers.sh"