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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2009-04-17 21:56:02 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2009-04-17 21:56:02 +0000
commit66cb86e48962ed96184ef3d1957a8a18c668e47a (patch)
tree21904a35565abf084bf1590375a4132e7e298548
parent270b1c3f68d48797ccc2475c03024ccd91f8e07c (diff)
downloadbusybox-66cb86e48962ed96184ef3d1957a8a18c668e47a.tar.gz
busybox-66cb86e48962ed96184ef3d1957a8a18c668e47a.tar.bz2
build system: remove some unnecessary rebuilds
-rw-r--r--applets/Kbuild11
1 files changed, 7 insertions, 4 deletions
diff --git a/applets/Kbuild b/applets/Kbuild
index 2969e7922..8aafe78fb 100644
--- a/applets/Kbuild
+++ b/applets/Kbuild
@@ -13,18 +13,21 @@ hostprogs-y += usage applet_tables
always:= $(hostprogs-y)
# Generated files need additional love
+# NB: __srctree is either empty or "srctree/"
+# using it instead of srctree decreases amount of rebuilds
+# if tree is merely renamed/copied
-HOSTCFLAGS_usage.o = -I$(srctree)/include
+HOSTCFLAGS_usage.o = -I$(__srctree)include
applets/applets.o: include/usage_compressed.h include/applet_tables.h
-applets/usage: .config $(srctree)/applets/usage_compressed
+applets/usage: .config $(__srctree)applets/usage_compressed
applets/applet_tables: .config
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)
quiet_cmd_gen_applet_tables = GEN include/applet_tables.h