--- Makefile.orig	2024-02-13 14:35:36 UTC
+++ Makefile
@@ -201,12 +201,12 @@ libs:
 	nroff -man $? > $@
 
 libs:
-	cd ../../libastro; make
-	cd ../../libip; make
-	cd ../../libjpegd; make
-	cd ../../liblilxml; make
-	cd ../../libpng; make
-	cd ../../libz; make
+	cd ../../libastro; $(MAKE)
+	cd ../../libip; $(MAKE)
+	cd ../../libjpegd; $(MAKE)
+	cd ../../liblilxml; $(MAKE)
+	cd ../../libpng; $(MAKE)
+	cd ../../libz; $(MAKE)
 
 clean:
 	rm -fr *.o ../../lib*/*.[ao]