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perf build: Do not fail on missing Build file

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Allow nesting into directories without Build file. Currently we force
include of the Build file, which fails the build when the Build file is
missing.

We already support empty *-in.o' objects if there's nothing in the
directory to be compiled, so we can just use it for missing Build file
cases.

Also adding this case under tests.

Reported-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rabin Vincent <rabin.vincent@axis.com>
Link: http://lkml.kernel.org/r/1432914178-24086-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-05-29 17:42:58 +02:00 committed by Arnaldo Carvalho de Melo
parent 9a4388c711
commit d7a3d85e08
3 changed files with 4 additions and 1 deletions
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2
tools/build/Makefile.build
View file

@ -37,7 +37,7 @@ subdir-obj-y :=
# Build definitions # Build definitions
build-file := $(dir)/Build build-file := $(dir)/Build
include $(build-file) -include $(build-file)
quiet_cmd_flex = FLEX $@ quiet_cmd_flex = FLEX $@
quiet_cmd_bison = BISON $@ quiet_cmd_bison = BISON $@

1
tools/build/tests/ex/Build
View file

@ -2,6 +2,7 @@ ex-y += ex.o
ex-y += a.o ex-y += a.o
ex-y += b.o ex-y += b.o
ex-y += empty/ ex-y += empty/
ex-y += empty2/
libex-y += c.o libex-y += c.o
libex-y += d.o libex-y += d.o

2
tools/build/tests/ex/empty2/README Normal file
View file

@ -0,0 +1,2 @@
This directory is left intentionally without Build file
to test proper nesting into Build-less directories.