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build system: remove some unnecessary rebuilds

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This commit is contained in:
Denis Vlasenko 2009-04-17 21:56:02 +00:00
parent 270b1c3f68
commit 66cb86e489
1 changed files with 7 additions and 4 deletions
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11
applets/Kbuild
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@ -13,18 +13,21 @@ hostprogs-y += usage applet_tables
always:= $(hostprogs-y) always:= $(hostprogs-y)
# Generated files need additional love # Generated files need additional love
# NB: __srctree is either empty or "srctree/"
# using it instead of srctree decreases amount of rebuilds
# if tree is merely renamed/copied
HOSTCFLAGS_usage.o = -I$(srctree)/include HOSTCFLAGS_usage.o = -I$(__srctree)include
applets/applets.o: include/usage_compressed.h include/applet_tables.h applets/applets.o: include/usage_compressed.h include/applet_tables.h
applets/usage: .config $(srctree)/applets/usage_compressed applets/usage: .config $(__srctree)applets/usage_compressed
applets/applet_tables: .config applets/applet_tables: .config
quiet_cmd_gen_usage_compressed = GEN include/usage_compressed.h quiet_cmd_gen_usage_compressed = GEN include/usage_compressed.h
cmd_gen_usage_compressed = $(srctree)/applets/usage_compressed include/usage_compressed.h applets cmd_gen_usage_compressed = $(__srctree)applets/usage_compressed include/usage_compressed.h applets
include/usage_compressed.h: applets/usage $(srctree)/applets/usage_compressed include/usage_compressed.h: applets/usage $(__srctree)applets/usage_compressed
$(call cmd,gen_usage_compressed) $(call cmd,gen_usage_compressed)
quiet_cmd_gen_applet_tables = GEN include/applet_tables.h quiet_cmd_gen_applet_tables = GEN include/applet_tables.h