tools build: Use fixdep with OUTPUT path prefix

Adding OUTPUT path prefix for fixdep target so we use it properly in out
of tree builds.

If the fixdep already existed in the tree, the out of tree build would
see it already exist and did not build the out of tree version, as
reported by Arnaldo:

  [acme@zoo linux]$ make O=/tmp/build/perf -C tools/perf
  make: Entering directory '/home/git/linux/tools/perf'
    BUILD:   Doing 'make -j4' parallel build
  make[2]: Nothing to be done for 'fixdep'.
  make: Leaving directory '/home/git/linux/tools/perf'

Reported-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20151126185055.GC19410@krava.brq.redhat.com
[ Fixed conflict with 5725dd8fa888 ("tools build: Clean CFLAGS and LDFLAGS for fixdep") ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/build/Makefile b/tools/build/Makefile
index a93036272d43cee505d43fee2ef3b1c347056f09..0d5a0e3a8fa9601fe8a58ff0e71142ebf2918df8 100644 (file)
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -25,7 +25,7 @@ export Q srctree CC LD
 MAKEFLAGS := --no-print-directory
 build     := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
-all: fixdep
+all: $(OUTPUT)fixdep
 
 clean:
        $(call QUIET_CLEAN, fixdep)

diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include
index 6254760290c9e2bc6a86e907f3082b828fe772b5..be630bed66d2af1407eeaaca5089290bbf989392 100644 (file)
--- a/tools/build/Makefile.include
+++ b/tools/build/Makefile.include
@@ -4,7 +4,7 @@ ifdef CROSS_COMPILE
 fixdep:
 else
 fixdep:
-       $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= fixdep
+       $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep
 endif
 
 .PHONY: fixdep