--- a/Makefile.in
+++ b/Makefile.in
@@ -44,17 +44,19 @@
 	./mkinstalldirs $(i_bindir) $(i_mandir)
 
 install_prog: $(progs)
+	mkdir -p $(i_bindir)
 	if test -f xspect; then \
-	   $(INSTALL_PROGRAM) -s -m 755 xspect $(i_bindir); fi
+	   $(INSTALL_PROGRAM) -m 755 xspect $(i_bindir); fi
 	if test -f vgaspect; then \
-	   $(INSTALL_PROGRAM) -s -m 4755 vgaspect $(i_bindir); fi
+	   $(INSTALL_PROGRAM) -m 4755 vgaspect $(i_bindir); fi
 
 install_man:
+	mkdir -p $(i_mandir)
 	$(INSTALL_DATA) ./xspect.1 $(i_mandir)
 	$(INSTALL_DATA) ./tapeout.1 $(i_mandir)
 	(cd $(i_mandir); rm -f vgaspect.1; ln -s xspect.1 vgaspect.1)
 
-install: installdirs install_prog install_man
+install: install_prog install_man
 
 z80_c_objs=z80.o z80optab.o z80_step.o spperif.o spect.o rom48.o \
            z80_op1.o z80_op2.o z80_op3.o z80_op4.o z80_op5.o z80_op6.o
@@ -88,7 +90,7 @@
 	./sp_to_s < i386emul.sp > i386emul.s
 
 i386emul.o: i386emul.s
-	$(CC) -c $(CFLAGS) i386emul.s
+	$(CC) -c $(ASFLAGS) -Xassembler --noexecstack i386emul.s
 
 sp_to_s: sp_to_s.o
 	$(CC) -o sp_to_s $(LDFLAGS) sp_to_s.o