Index: Makefile.in
--- Makefile.in.orig	2017-02-12 21:47:28.000000000 +0100
+++ Makefile.in	2019-12-21 16:31:37.354814000 +0100
@@ -23,11 +23,11 @@
 EXE = 
 
 all:
-	cd goo; $(MAKE)
-	cd fofi; $(MAKE)
-	cd splash; $(MAKE)
-	cd xpdf; $(MAKE)
-	cd src; $(MAKE) 
+	cd goo; $(MAKE) $(MFLAGS)
+	cd fofi; $(MAKE) $(MFLAGS)
+	cd splash; $(MAKE) $(MFLAGS)
+	cd xpdf; $(MAKE) $(MFLAGS)
+	cd src; $(MAKE) $(MFLAGS)
 
 dummy:
 
@@ -81,4 +81,4 @@
 	cd goo; $(MAKE) depend
 	cd fofi; $(MAKE) depend
 	cd splash; $(MAKE) depend
-	cd xpdf; $(MAKE) depend
\ No newline at end of file
+	cd xpdf; $(MAKE) depend