--- Makefile.in.orig	2024-07-12 17:15:27 UTC
+++ Makefile.in
@@ -900,7 +900,7 @@ test:
 
 test:
 	echo Making test in $(TEST_DIR)
-	cd $(TEST_DIR) && make test
+	cd $(TEST_DIR) && gmake test
 
 dlt_names:
 	cat @SAVEFILE_C@ | $(top_builddir)/scripts/dlt2name.pl src/dlt_names.h
