[tip:perf/core] perf build: Disable libdw DWARF unwind when built with NO_DWARF

From: tip-bot for Naveen N. Rao
Date: Sun May 10 2015 - 03:12:49 EST

Commit-ID: 76d408498b08447e0f61dfdd611aeb6e8e61ce80
Gitweb: http://git.kernel.org/tip/76d408498b08447e0f61dfdd611aeb6e8e61ce80
Author: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
AuthorDate: Wed, 29 Apr 2015 16:45:31 +0530
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 8 May 2015 16:43:14 -0300

perf build: Disable libdw DWARF unwind when built with NO_DWARF

We get a linker error if we try to build with NO_DWARF since we build
util/unwind-libdw.c, but do not include -ldw

Signed-off-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1430306131-6780-1-git-send-email-naveen.n.rao@xxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/config/Makefile | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 435b6ca..1b957a1 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -268,6 +268,10 @@ else
endif # libelf support
endif # NO_LIBELF

+ifdef NO_DWARF
ifndef NO_LIBELF
EXTLIBS += -lelf
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