[PATCH 1/5] perf tests: Run ctags/cscope make tests only with needed binaries

[Jiri Olsa <jolsa@redhat.com>]

Running tags and cscope make tests only if the 'ctags'
and 'cscope' binaries are installed, so we don't have
false alarm test failures.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
---
 tools/perf/tests/make | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index c441a28..d1efef9 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -1,6 +1,8 @@
 PERF := .
 MK   := Makefile
 
+has = $(shell which $1 2>/dev/null)
+
 # standard single make variable specified
 make_clean_all      := clean all
 make_python_perf_so := python/perf.so
@@ -50,14 +52,19 @@ run += make_no_backtrace
 run += make_no_libnuma
 run += make_no_libaudit
 run += make_no_libbionic
-run += make_tags
-run += make_cscope
 run += make_help
 run += make_doc
 run += make_perf_o
 run += make_util_map_o
 run += make_minimal
 
+ifneq ($(call has,ctags),)
+run += make_tags
+endif
+ifneq ($(call has,cscope),)
+run += make_cscope
+endif
+
 # $(run_O) contains same portion of $(run) tests with '_O' attached
 # to distinguish O=... tests
 run_O := $(addsuffix _O,$(run))
-- 
1.7.11.7