See http://www.infradead.org/rpr.html

From: Arnaldo Carvalho de Melo <a...@redhat.com>

Since this is the name that 'make' will look for if no explicit -f file
is passed.

This in turn makes the output of 'build-test' more compact:

Before:

  $ perf stat make -C tools/perf build-test
  <SNIP>
  cd . && make 
FEATURE_DUMP_COPY=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP 
feature-dump
          make_no_libaudit_O: cd . && make -f Makefile  O=/tmp/tmp.tHIa0Kkk2Y 
DESTDIR=/tmp/tmp.foK7rckkVi NO_LIBAUDIT=1 
FEATURES_DUMP=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP
  <SNIP>

After:

  $ perf stat make -C tools/perf build-test
  <SNIP>
          make_no_libaudit_O: cd . && make  O=/tmp/tmp.tHIa0Kkk2Y 
DESTDIR=/tmp/tmp.foK7rckkVi NO_LIBAUDIT=1 
FEATURES_DUMP=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP
  <SNIP>

Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Link: http://lkml.kernel.org/n/tip-m440lb8dkfsywsyah0hti...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/tests/make | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index cc72b67bde5e..0b70cf16a562 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -111,6 +111,9 @@ run := make_pure
 # disable features detection
 ifeq ($(MK),Makefile)
 run += make_clean_all
+MAKE_F := $(MAKE)
+else
+MAKE_F := $(MAKE) -f $(MK)
 endif
 run += make_python_perf_so
 run += make_debug
@@ -270,12 +273,12 @@ endif
 
 MAKEFLAGS := --no-print-directory
 
-clean := @(cd $(PERF); make -s -f $(MK) $(O_OPT) clean >/dev/null)
+clean := @(cd $(PERF); $(MAKE_F) -s $(O_OPT) clean >/dev/null)
 
 $(run):
        $(call clean)
        @TMP_DEST=$$(mktemp -d); \
-       cmd="cd $(PERF) && make -f $(MK) $(PARALLEL_OPT) $(O_OPT) 
DESTDIR=$$TMP_DEST $($@)"; \
+       cmd="cd $(PERF) && $(MAKE_F) $(PARALLEL_OPT) $(O_OPT) 
DESTDIR=$$TMP_DEST $($@)"; \
        printf "%*.*s: %s\n" $(max_width) $(max_width) "$@" "$$cmd" && echo 
$$cmd > $@ && \
        ( eval $$cmd ) >> $@ 2>&1; \
        echo "  test: $(call test,$@)" >> $@ 2>&1; \
@@ -286,7 +289,7 @@ $(run_O):
        $(call clean)
        @TMP_O=$$(mktemp -d); \
        TMP_DEST=$$(mktemp -d); \
-       cmd="cd $(PERF) && make -f $(MK) $(PARALLEL_OPT) O=$$TMP_O 
DESTDIR=$$TMP_DEST $($(patsubst %_O,%,$@))"; \
+       cmd="cd $(PERF) && $(MAKE_F) $(PARALLEL_OPT) O=$$TMP_O 
DESTDIR=$$TMP_DEST $($(patsubst %_O,%,$@))"; \
        printf "%*.*s: %s\n" $(max_width) $(max_width) "$@" "$$cmd" && echo 
$$cmd > $@ && \
        ( eval $$cmd ) >> $@ 2>&1 && \
        echo "  test: $(call test_O,$@)" >> $@ 2>&1; \
-- 
2.5.0

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