diff --git a/debian/rules b/debian/rules
index 9cbd04db..20e4b411 100755
--- a/debian/rules
+++ b/debian/rules
@@ -250,6 +250,12 @@ endif
 
 
 preconfigure:
+	@echo "DEB_HOST_MULTIARCH=$(DEB_HOST_MULTIARCH)"
+	@echo "DEB_HOST_GNU_TYPE=$(DEB_HOST_GNU_TYPE)"
+	@echo "DEB_HOST_ARCH_BITS=$(DEB_HOST_ARCH_BITS)"
+	@echo "DEB_HOST_ARCH=$(DEB_HOST_ARCH)"
+	@echo "DEB_HOST_ARCH_OS=$(DEB_HOST_ARCH_OS)"
+
 	for f in debian/*.in; do \
 		f2=$$(echo $$f | sed 's/\.in$$//;s/X\.Y/$(LLVM_VERSION)/'); \
 		echo "$$f => $$f2"; \