- add make target "download_dlx" which runs wget to download the

DLXlinux tar file, unless it is already there.  Before, you had to
  download the 1meg+ tar file every single time you build the RPM, which
  was annoying.

bochs/Makefile.in

@@ -272,9 +272,15 @@ install_man::
 	-mkdir -p $(DESTDIR)$(man1dir)
 	for i in $(MAN_PAGE_LIST); do cat $(srcdir)/doc/man/$$i.1 | $(SED) -e 's/@VERSION@/$(VERSION)/g' > $(DESTDIR)$(man1dir)/$$i.1; chmod 644 $(DESTDIR)$(man1dir)/$$i.1; done
 
-install_dlx::
+download_dlx: $(DLXLINUX_TAR)
+
+$(DLXLINUX_TAR):
 	$(RM) -f $(DLXLINUX_TAR)
 	$(WGET) $(DLXLINUX_TAR_URL)
+	test -f $(DLXLINUX_TAR)
+
+install_dlx::
+	make download_dlx
 	$(RM) -rf $(BOCHSDIR)/dlxlinux
 	$(GUNZIP) -c $(DLXLINUX_TAR) | (cd $(BOCHSDIR); tar -xvf -)
 	$(RM) -f $(DLXLINUX_TAR)
@@ -294,7 +300,16 @@ uninstall::
 	for i in bochs bximage bochs-dlx $(BOCHS_SCRIPTS); do rm -f /usr/local/bin/$$i; done
 	for i in $(MAN_PAGE_LIST); do $(RM) -f $(man1dir)/$$i.1; done
 
-rpm:: dist-clean
+################################################################
+# Building an RPM on Linux
+#
+# This must be done as root on a linux box.
+# The command is:
+#   sh .conf.linux; make rpm
+# The binary rpm will appear in /usr/src/redhat/RPMS/i386/bochs-nnnnn.i386.rpm
+# The source rpm will be in /usr/src/redhat/SRPMS/bochs-nnnnn.src.rpm
+################################################################
+rpm:: dist-clean download_dlx
 	test -w $(SOURCES)
 	test -w $(SPECS)
 	rm -f /usr/src/redhat/SPECS/bochs.spec