3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
5 # Licensed under GPLv2, see file LICENSE in this source tree.
11 hostprogs-y += usage usage_pod applet_tables
13 always:= $(hostprogs-y)
15 # Generated files need additional love
17 # This trick decreases amount of rebuilds
18 # if tree is merely renamed/copied
19 ifeq ($(srctree),$(objtree))
22 srctree_slash = $(srctree)/
25 HOSTCFLAGS_usage.o = -I$(srctree_slash)include -Iinclude
26 HOSTCFLAGS_usage_pod.o = -I$(srctree_slash)include -Iinclude
28 applets/applets.o: include/usage_compressed.h include/applet_tables.h
30 applets/applet_tables: .config include/applets.h
31 applets/usage: .config include/applets.h
32 applets/usage_pod: .config include/applets.h include/applet_tables.h
34 quiet_cmd_gen_usage_compressed = GEN include/usage_compressed.h
35 cmd_gen_usage_compressed = $(srctree_slash)applets/usage_compressed include/usage_compressed.h applets
37 include/usage_compressed.h: applets/usage $(srctree_slash)applets/usage_compressed
38 $(call cmd,gen_usage_compressed)
40 quiet_cmd_gen_applet_tables = GEN include/applet_tables.h include/NUM_APPLETS.h
41 cmd_gen_applet_tables = applets/applet_tables include/applet_tables.h include/NUM_APPLETS.h
43 include/NUM_APPLETS.h: applets/applet_tables
44 $(call cmd,gen_applet_tables)
46 # In fact, include/applet_tables.h depends only on applets/applet_tables,
47 # and is generated by it. But specifying only it can run
48 # applets/applet_tables twice, possibly in parallel.
49 # We say that it also needs NUM_APPLETS.h
51 # Unfortunately, we need to list the same command,
52 # and it can be executed twice (sequentially).
53 # The alternative is to not list any command,
54 # and then if include/applet_tables.h is deleted, it won't be rebuilt.
56 include/applet_tables.h: include/NUM_APPLETS.h applets/applet_tables
57 $(call cmd,gen_applet_tables)