[tip:perf/core] tools lib traceevent: Fixup jobserver setup

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  456da532a5fb04f8a79622df7dd49e84e04f31a8
Gitweb:     http://git.kernel.org/tip/456da532a5fb04f8a79622df7dd49e84e04f31a8
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 26 Aug 2013 13:04:04 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 27 Aug 2013 11:05:55 -0300

tools lib traceevent: Fixup jobserver setup

Getting rid of:

make[1]: Entering directory `/home/git/linux/tools/lib/traceevent'
make[2]: warning: jobserver unavailable: using -j1.  Add `+' to parent
make rule.
make[1]: Entering directory `/home/git/linux/tools/lib/lk

When running:

 make -j4 O=/tmp/build/perf -C tools/perf install-bin

Acked-by: Borislav Petkov <bp@xxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-pvr7uppe329gw9onchgdu0m6@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/lib/traceevent/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 0794acc..ca6cb77 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -60,7 +60,7 @@ ifeq ($(BUILD_SRC),)
 ifneq ($(BUILD_OUTPUT),)
 
 define build_output
-	$(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) 	\
+	$(if $(VERBOSE:1=),@)+$(MAKE) -C $(BUILD_OUTPUT) 	\
 	BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
 endef
 
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