[openwrt/openwrt] perf: use libunwind

[LEDE Commits]

blogic pushed a commit to openwrt/openwrt.git, branch lede-17.01:
https://git.lede-project.org/b15d54e659b444ba74655975c3e54e987751244b

commit b15d54e659b444ba74655975c3e54e987751244b
Author: Maxim Gorbachyov <maxim.gorbachyov at gmail.com>
AuthorDate: Fri Jan 12 20:54:41 2018 +0300

    perf: use libunwind
    
    Without libunwind perf does not show userspace stack frames.
    Tested on mvebu.
    
    Signed-off-by: Maxim Gorbachyov <maxim.gorbachyov at gmail.com>
---
 package/devel/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/devel/perf/Makefile b/package/devel/perf/Makefile
index 8ff9bfa..9cfa17f 100644
--- a/package/devel/perf/Makefile
+++ b/package/devel/perf/Makefile
@@ -26,7 +26,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/perf
   SECTION:=devel
   CATEGORY:=Development
-  DEPENDS:= +libelf1 +libdw +libpthread +librt +objdump @!LINUX_3_18 @!IN_SDK
+  DEPENDS:= +libelf1 +libdw +libunwind +libpthread +librt +objdump @!LINUX_3_18 @!IN_SDK
   TITLE:=Linux performance monitoring tool
   VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE)
   URL:=http://www.kernel.org