diff --git a/Makefile b/Makefile
index 0950f73..02b8159 100644
--- a/Makefile
+++ b/Makefile
@@ -58,6 +58,8 @@
 	ls -la /usr/lib/llvm-13/lib || true
 	ls -la /usr/lib/llvm-14/lib || true
 	ls -la /usr/lib/llvm-10/lib || true
+	clang++ -v || true
+	clang-10++ -v || true
 	$(MACOSX_CXX) $< -o $@ -v || true
 	$(MACOSX_CXX) $< -o $@ -v -O0 || true
 	$(MACOSX_CXX) $< -o $@ -v -fno-lto -L/usr/lib/llvm-13/lib