[PATCH] perf: Fix dependency for python/perf.so

[Naohiro Aota]

python/perf.so lacks dependency for libtraceevent.a so that it cause
the following error building python/perf.so. This patch introduce the
dependency for it.

   $ make python/perf.so
       CHK -fstack-protector-all
       CHK -Wstack-protector
       CHK -Wvolatile-register-var
       CHK -D_FORTIFY_SOURCE=2
       CHK bionic
       CHK libelf
       CHK libdw
       CHK libunwind
       CHK -DLIBELF_MMAP
       CHK libaudit
       CHK libnewt
       CHK gtk2
       CHK -DHAVE_GTK_INFO_BAR
       CHK perl
       CHK python
       CHK python version
       CHK libbfd
       CHK -DHAVE_STRLCPY
       CHK -DHAVE_ON_EXIT
       CHK -DBACKTRACE_SUPPORT
       CHK libnuma
       GEN python/perf.so
   x86_64-pc-linux-gnu-gcc: error: ../lib/traceevent/libtraceevent.a: No such file or directory
   error: command 'x86_64-pc-linux-gnu-gcc' failed with exit status 1
   cp: cannot stat 'python_ext_build/lib/perf.so': No such file or directory
   make: *** [python/perf.so] Error 1

Signed-off-by: Naohiro Aota <naota@xxxxxxxxx>
---
 tools/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index bb74c79..d10ccda 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -262,7 +262,7 @@ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
 python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
 
 PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
-PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py
+PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT)
 
 $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
 	$(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
-- 
1.8.1.5

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