top: add -m ("memory") option

[oweals/busybox.git] / applets / Kbuild

diff --git a/applets/Kbuild b/applets/Kbuild
index c95c09d972f40bfe9b830ae61196fbe2c66c9f22..983037987c7679bf04d9ecd0f4a9e18e0934f275 100644 (file)
--- a/applets/Kbuild
+++ b/applets/Kbuild
@@ -4,18 +4,40 @@
 #
 # Licensed under the GPL v2, see the file LICENSE in this tarball.
 
-obj-y:=
-obj-y  += applets.o
-obj-y  += busybox.o
+obj-y :=
+obj-y += applets.o
 
-# Generated file needs additional love
+hostprogs-y:=
+hostprogs-y += usage applet_tables
 
-applets/applets.o: include/usage_compressed.h
+always:= $(hostprogs-y)
 
-hostprogs-y += usage
-always := $(hostprogs-y)
-HOSTCFLAGS_usage.o = -I$(srctree)/include
+# Generated files need additional love
 
-include/usage_compressed.h: $(srctree)/include/usage.h applets/usage
-       @echo '  GEN     include/usage_compressed.h'
-       @$(srctree)/applets/usage_compressed include/usage_compressed.h applets
+# This trick decreases amount of rebuilds
+# if tree is merely renamed/copied
+ifeq ($(srctree),$(objtree))
+srctree_slash =
+else
+srctree_slash = $(srctree)/
+endif
+
+
+HOSTCFLAGS_usage.o = -I$(srctree_slash)include
+
+applets/applets.o: include/usage_compressed.h include/applet_tables.h
+
+applets/usage:         .config $(srctree_slash)applets/usage_compressed
+applets/applet_tables: .config
+
+quiet_cmd_gen_usage_compressed = GEN     include/usage_compressed.h
+      cmd_gen_usage_compressed = $(srctree_slash)applets/usage_compressed include/usage_compressed.h applets
+
+include/usage_compressed.h: applets/usage $(srctree_slash)applets/usage_compressed
+       $(call cmd,gen_usage_compressed)
+
+quiet_cmd_gen_applet_tables = GEN     include/applet_tables.h
+      cmd_gen_applet_tables = applets/applet_tables include/applet_tables.h
+
+include/applet_tables.h: applets/applet_tables
+       $(call cmd,gen_applet_tables)