This changes the python generated makefiles

targets/*/*/Makefile
        targets/*/*/normal/Makefile
        targets/*/*/fallback/Makefile

to use a common copy of romcc, and to leave this compiler untouched by
'make clean' in targets/*/*/fallback/ and targets/*/*/normal/ .
'make clean' in targets/*/*/ will clean romcc.

Thanks to Mats for the initial idea and implementation of a tool to do
this. This patch has almost the same behaviour as the original tool
without having to run the tool each time.
Tested for abuild-friendliness.

The patch saves ~10-12 seconds for every target using romcc. For a full
abuild run, this is ~20% time saved.
For the first 38 abuild targets, total build time is down to 13m24s
instead of 16m22s on my machine.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Mats Erik Andersson <mats.andersson@gisladisker.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3564 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

util/newconfig/config.g

@@ -2159,10 +2159,13 @@ def writemakefile(path):
 	file.write("clean: ")
 	for i in romimages.keys():
 		file.write(" %s-clean" % i)
+	file.write(" base-clean")
 	file.write("\n\n")
 	for i, o in romimages.items():
 		file.write("%s-clean:\n" % o.getname())
 		file.write("\t(cd %s; $(MAKE) clean)\n\n" % o.getname())
+	file.write("base-clean:\n")
+	file.write("\trm -f romcc*\n\n")
 
 	for i in buildroms:
 		file.write("%s:" % i.name)