tools build: Fix cross compile build

He Kuang the new fixdep tool breaks cross compiling. The reason is it
wouldn't get compiled under host arch, but under cross arch and failed
to run.

We need to add support for host side tools build, meanwhile disabling
fixdep usage for cross arch builds.

Reported-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
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/20151013124358.GB9467@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include
index 6572bb023543703fca7f48abc0c8fa84e8c95459..4e09ad617a607dd0884ada776d26df23bac407cb 100644 (file)
--- a/tools/build/Makefile.include
+++ b/tools/build/Makefile.include
@@ -1,6 +1,10 @@
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
+ifdef CROSS_COMPILE
+fixdep:
+else
 fixdep:
        $(Q)$(MAKE) -C $(srctree)/tools/build fixdep
+endif
 
 .PHONY: fixdep