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kbuild: obj-dirs is calculated incorrectly if hostprogs-y is defined 

When Makefile.host is included, $(obj-dirs) is subjected to the
addprefix operation for the second time.  Prefix only needs to be added
to the newly added directories, but not to those that came from
Makefile.lib.

This causes the build system to create unneeded empty directories in the
build tree when building in a separate directory.  For instance,
lib/lib/zlib_inflate is created in the build tree.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Pavel Roskin 2006-06-01 21:28:50 -04:00 committed by Sam Ravnborg
parent 1def630a6a
commit 9870a93d31
1 changed files with 5 additions and 3 deletions
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8
scripts/Makefile.host
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@ -33,8 +33,8 @@
__hostprogs := $(sort $(hostprogs-y)$(hostprogs-m))
# hostprogs-y := tools/build may have been specified. Retreive directory
obj-dirs += $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f))))
obj-dirs := $(strip $(sort $(filter-out ./,$(obj-dirs))))
host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f))))
host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
# C code
@ -73,7 +73,9 @@ host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
obj-dirs += $(host-objdirs)
#####
# Handle options to gcc. Support building with separate output directory